Mainstream Studies Showing Truth About Salt, Saturated Fat, High Fat Diets, Etc
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Salt, Blood Pressure, & Heart Disease
Commentary: Rethinking Salt’s Bad Reputation
The nine sources below question the idea that eating a lot of salt always raises blood pressure or harms the heart. Big studies like Intersalt and NHANES II found no clear connection between salt and high blood pressure or death rates. Some even suggest moderate salt (3–6 g/day) might be best, while too little or too much could be risky. Research reviews in Cochrane and AJH showed cutting salt didn’t lower heart attacks or deaths, and for people with heart failure, less salt raised death risk. Articles in Time and The Washington Post note scientists, like Dr. Suzanne Oparil, doubting strict guidelines based on shaky proof. The Framingham study found low salt linked to higher blood pressure. This suggests salt isn’t the villain it’s made out to be—everyone’s different, and blanket rules might need a fresh look.
Article: Does Cutting Salt Really Improve Heart Health?
Journal: Time Magazine
Summary: This article discusses a study that examined the effects of reducing dietary salt on heart health. Although lowering salt intake led to a modest decrease in blood pressure, the researchers found no robust evidence that it reduced overall mortality rates in individuals with either high or normal blood pressure. Notably, one study highlighted a potential risk, suggesting that salt restriction in patients with congestive heart failure might increase mortality. The findings challenge the conventional wisdom that cutting salt universally improves cardiovascular outcomes.
Link: http://healthland.time.com/2011/07/07/cutting-salt-may-not-reduce-heart-attacks-or-risk-of-death/
Date Published: July 7, 2011
Article: Is the American diet too salty? Scientists challenge the longstanding government warning
Journal: The Washington Post
Summary: This article explores growing skepticism among scientists regarding government warnings about salt intake. It cites experts like Dr. Suzanne Oparil, who argue that current salt guidelines lack solid evidence. The piece reviews research suggesting that the link between salt consumption and adverse health outcomes, such as heart disease, is weaker than previously claimed. It calls into question the entrenched belief that reducing salt is inherently beneficial, highlighting a scientific push to reconsider dietary recommendations.
Date Published: April 6, 2015
Study: Reduced dietary salt for the prevention of cardiovascular disease
Journal: Cochrane Database of Systematic Reviews (via PubMed)
Summary: This study analyzed the impact of reduced salt intake on cardiovascular disease prevention. The relative risks for all-cause mortality in individuals with normal blood pressure (normotensives) and high blood pressure (hypertensives) showed no significant benefit from salt reduction. Similarly, cardiovascular morbidity in both groups lacked strong evidence of improvement with lower salt intake. Alarmingly, salt restriction was associated with an increased risk of all-cause mortality in patients with congestive heart failure, challenging broad salt-reduction policies.
Link: http://www.ncbi.nlm.nih.gov/pubmed/21735439
Date Published: July 6, 2011
Study: Dietary sodium intake and mortality
Journal: The Lancet
Summary: This study investigated the relationship between dietary sodium intake and mortality rates. The findings revealed no clear association between sodium consumption and death from any cause. The relative risks did not support routine recommendations to reduce sodium intake, nor did they justify increasing or decreasing it universally. The study concludes that current evidence does not strongly endorse altering salt intake as a broad public health strategy, leaving dietary sodium’s role in mortality ambiguous.
Link: http://www.thelancet.com/journals/lancet/article/PIIS0140-6736(97)09092-2/fulltext
Date Published: July 11, 1998
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Study: Intersalt: An international study of electrolyte excretion and blood pressure. Results for 24-hour urinary sodium and potassium excretion
Journal: The British Medical Journal
Summary: This large-scale study examined sodium intake and blood pressure across 52 centers worldwide, involving over 10,000 participants. It found no consistent correlation between 24-hour urinary sodium excretion (a reliable measure of salt intake) and hypertension prevalence. While some populations with very high salt intake showed elevated blood pressure, the overall relationship was weak, suggesting factors like genetics or other dietary components might play a larger role than salt alone.
Link: https://www.bmj.com/content/297/6644/319
Date Published: July 30, 1988
Study: Reduced dietary salt for the prevention of cardiovascular disease: A meta-analysis of randomized controlled trials
Journal: American Journal of Hypertension
Summary: This meta-analysis reviewed seven randomized controlled trials with 6,250 participants to assess whether reducing salt intake lowers cardiovascular risk. It found no strong evidence that cutting salt reduced heart attacks, strokes, or all-cause mortality in people with normal or high blood pressure. The lack of significant outcomes challenges the assumption that high salt intake directly drives blood pressure-related issues, highlighting inconsistent results in the literature.
Link: https://academic.oup.com/ajh/article/24/8/843/2281952
Date Published: August 2011
Study: Sodium intake and mortality in the NHANES II follow-up study
Journal: The American Journal of Medicine
Summary: This study followed 7,154 participants from the NHANES II survey over 13.7 years to explore the link between sodium intake and mortality. Surprisingly, higher sodium intake was not associated with increased risk of death from cardiovascular causes or all causes. Instead, a slight inverse trend emerged, suggesting that moderate to high salt intake might not universally correlate with blood pressure problems or poor health outcomes.
Link: https://www.amjmed.com/article/S0002-9343(05)01008-8/fulltext
Date Published: March 2006
Study: Urinary sodium and potassium excretion, mortality, and cardiovascular events
Journal: The New England Journal of Medicine
Summary: This prospective cohort study analyzed sodium intake via urinary excretion in 101,945 individuals across 17 countries. It identified a J-shaped relationship between sodium intake and cardiovascular events, where both very low (<3 g/day) and very high (>7 g/day) sodium levels were linked to higher risk, but moderate intake (3–6 g/day) showed the lowest risk. This challenges the linear assumption that higher salt intake consistently raises blood pressure and cardiovascular issues.
Link: https://www.nejm.org/doi/full/10.1056/NEJMoa1311889
Date Published: August 14, 2014
Study: Sodium intake and blood pressure in Framingham Offspring Study: Evidence for a sodium threshold
Journal: Hypertension (via American Heart Association)
Summary: This study of 2,632 adults aged 30–64 from the Framingham Offspring cohort found that sodium intake below 2,500 mg/day was associated with higher blood pressure, while intakes above this threshold showed no significant increase. This inverse finding contradicts the narrative that higher salt intake reliably elevates blood pressure, suggesting a potential threshold effect rather than a universal correlation.
Link: https://www.ahajournals.org/doi/10.1161/HYPERTENSIONAHA.117.09102
Date Published: April 25, 2017
Saturated Fat, Heart Disease, & Weight Loss
Commentary: Rethinking Fat, Carbs, and Salt in Our Diets
These 19 sources shake up old diet advice. Studies show low-carb, high-fat diets beat low-fat ones for weight loss, better cholesterol, and blood sugar control, especially in obesity and diabetes. Time Magazine and others argue fat—especially saturated fat—got a bad rap, with sugar and carbs likely bigger culprits for heart issues. NPR and The New York Times reveal how the sugar industry pushed blame onto fat decades ago, skewing guidelines. Japan’s dropping cholesterol limits and Sweden’s switch to low-carb, high-fat diets back this shift, showing dietary cholesterol and fat aren’t the villains. On salt, Time and The Washington Post highlight weak evidence tying it to heart problems—cutting it might even harm some, like heart failure patients. Together, this suggests we’ve been fed flawed rules; carbs and sugar need more scrutiny, while fat and salt deserve a second look.
Article: The Truth About Fat
Journal: Time Magazine
Summary: This article challenges long-standing dietary guidelines that vilified fat, particularly saturated fat, as the primary cause of heart disease. It discusses emerging evidence suggesting that the focus on reducing fat intake may have been misguided, with carbohydrates, especially refined sugars, playing a larger role in obesity and cardiovascular issues. The piece reflects a shifting narrative in nutritional science, urging a reevaluation of fat’s role in a healthy diet based on recent studies.
Link: http://time.com/2861540/fat-and-carbs-diet-guidelines/
Date Published: June 12, 2014
Article: Japanese Government Drops Cholesterol Limit in Health Guidance
Journal: The Wall Street Journal (Japan Real Time)
Summary: This article reports on Japan’s decision to remove specific cholesterol limits from its national health guidelines, marking a significant shift in dietary policy. The change reflects growing evidence that dietary cholesterol has a limited impact on blood cholesterol levels for most people, challenging decades of advice to restrict cholesterol-rich foods like eggs. The move aligns with evolving global perspectives on cholesterol and heart health, prioritizing overall dietary balance.
Date Published: June 17, 2015
Article: Sweden Becomes First Western Nation to Reject Low-fat Diet Dogma in Favor of Low-carb High-fat Nutrition
Journal: Health Impact News
Summary: This article highlights Sweden’s groundbreaking shift away from low-fat dietary recommendations toward a low-carb, high-fat (LCHF) approach, making it the first Western nation to officially adopt this stance. The change followed a review of scientific evidence by Swedish health experts, who concluded that LCHF diets are more effective for weight loss and managing conditions like diabetes. The move challenges decades of low-fat dogma and signals a potential turning point in global nutrition policy.
Date Published: October 29, 2013
Article: Does Cutting Salt Really Improve Heart Health?
Journal: Time Magazine
Summary: This article examines research questioning the health benefits of reducing dietary salt. While lowering salt intake slightly reduced blood pressure, studies found no strong evidence that it decreased mortality rates in people with normal or high blood pressure. One study even suggested that salt restriction might increase the risk of death in patients with congestive heart failure, casting doubt on the universal push to cut salt as a means to improve cardiovascular health.
Link: http://healthland.time.com/2011/07/07/cutting-salt-may-not-reduce-heart-attacks-or-risk-of-death/
Date Published: July 7, 2011
Article: Is the American diet too salty? Scientists challenge the longstanding government warning
Journal: The Washington Post
Summary: This article explores scientific skepticism toward U.S. government warnings about excessive salt intake. Experts like Dr. Suzanne Oparil argue that current salt guidelines lack robust evidence, with research showing weak links between salt reduction and improved health outcomes. The piece suggests that the entrenched belief in salt’s dangers may be overstated, as emerging studies fail to consistently support broad salt-restriction policies, prompting calls for a reassessment.
Date Published: April 6, 2015
Article: 50 Years Ago, Sugar Industry Quietly Paid Scientists To Point Blame At Fat
Journal: NPR (The Two-Way)
Summary: This article reveals how, in the 1960s, the sugar industry funded research to downplay sugar’s role in heart disease and shift blame to dietary fat. Documents uncovered from that era show that industry leaders paid scientists to produce studies emphasizing saturated fat as the primary dietary culprit, influencing public health policy for decades. The piece highlights how this strategic funding shaped early dietary guidelines, raising questions about the integrity of nutritional science at the time.
Date Published: September 13, 2016
Article: How the Sugar Industry Shifted Blame to Fat
Journal: The New York Times (Well)
Summary: This article discusses historical evidence showing that the sugar industry manipulated scientific research in the 1960s to deflect attention from sugar’s health risks. By financing studies that implicated saturated fat as the main driver of coronary heart disease, the industry influenced dietary recommendations and public perception. The revelations, drawn from archival documents, suggest that this campaign contributed to decades of misguided focus on fat reduction rather than sugar control in preventing chronic disease.
Link: https://www.nytimes.com/2016/09/13/well/eat/how-the-sugar-industry-shifted-blame-to-fat.html?_r=0
Date Published: September 12, 2016
Study: A low-carbohydrate, ketogenic diet versus a low-fat diet to treat obesity and hyperlipidemia
Journal: Annals of Internal Medicine
Summary: This 24-week study compared a low-carbohydrate ketogenic diet (LCKD) to a low-fat diet in treating obesity and hyperlipidemia. The LCKD group experienced greater weight loss, a more significant reduction in serum triglycerides, and an increase in HDL cholesterol compared to the low-fat group. These findings align with four randomized controlled trials, suggesting that a low-carb approach may be more effective for weight loss and improving lipid profiles in obese individuals.
Link: http://annals.org/article.aspx?articleid=717451
Date Published: May 18, 2004
Study: The effects of a low-carbohydrate ketogenic diet and a low-fat diet on mood, hunger, and other self-reported symptoms
Journal: Obesity (via PubMed)
Summary: This study evaluated the effects of a low-carbohydrate ketogenic diet (LCKD) versus a low-fat diet (LFD) on mood, hunger, and other symptoms. Patients on the LCKD reported greater improvements in negative affect and hunger compared to those on the LFD. The authors suggest that these symptomatic improvements might contribute to the enhanced short-term weight loss often observed with LCKD, though further research is needed to confirm this link.
Link: http://www.ncbi.nlm.nih.gov/pubmed/17228046
Date Published: January 2007
Study: Comparison of energy-restricted very low-carbohydrate ketogenic diet (VLCK) and low-fat diets (LF) on weight loss and body composition in overweight men and women
Journal: Nutrition & Metabolism (via PMC)
Summary: This study compared a very low-carbohydrate ketogenic diet (VLCK) to a low-fat diet (LF) in overweight men and women. Results showed that the majority of participants experienced greater weight loss and fat loss on the VLCK diet compared to the LF diet. The findings highlight the potential superiority of carbohydrate restriction for achieving body composition improvements in this population.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC538279/
Date Published: May 8, 2004
Study: A randomized trial of a low-carbohydrate diet for obesity
Journal: The New England Journal of Medicine
Summary: This randomized trial compared a low-carbohydrate diet to a conventional low-fat diet for obesity over one year. The low-carb group achieved greater weight loss (approximately 4% more) in the first six months, though differences diminished by the end of the year. Additionally, the low-carb diet led to greater improvements in certain coronary heart disease risk factors, suggesting short-term cardiovascular benefits.
Link: http://www.nejm.org/doi/full/10.1056/NEJMoa022207
Date Published: May 22, 2003
Study: A low-carbohydrate as compared with a low-fat diet in severe obesity
Journal: The New England Journal of Medicine
Summary: This study examined severely obese individuals with high rates of diabetes or metabolic syndrome over six months. The low-carbohydrate diet resulted in greater weight loss compared to a calorie- and fat-restricted diet, alongside relative improvements in insulin sensitivity and triglyceride levels, even when adjusted for weight loss. These findings suggest that carbohydrate restriction may offer distinct metabolic advantages in severe obesity.
Link: http://www.nejm.org/doi/full/10.1056/NEJMoa022637
Date Published: May 22, 2003
Study: Effects of a low-carbohydrate diet on weight loss and cardiovascular risk factor in overweight adolescents
Journal: The Journal of Pediatrics
Summary: This study assessed the impact of a low-carbohydrate diet on overweight adolescents. The results indicated that the low-carb diet was effective for short-term weight loss without negatively affecting the lipid profile. The findings support the use of carbohydrate restriction as a safe and viable option for managing adolescent obesity in the short term.
Link: http://www.jpeds.com/article/S0022-3476(02)40206-5/abstract?cc=y=
Date Published: March 2003
Study: A randomized trial comparing a very low carbohydrate diet and a calorie-restricted low fat diet on body weight and cardiovascular risk factors in healthy women
Journal: The Journal of Clinical Endocrinology & Metabolism
Summary: This randomized trial compared a very low-carbohydrate diet to a calorie-restricted low-fat diet in healthy women. The low-carb group lost approximately twice as much weight and showed significant reductions in blood triglycerides, while HDL cholesterol improved slightly in both groups. The study underscores the potential of low-carb diets for enhanced weight loss and lipid profile improvements.
Link: http://press.endocrine.org/doi/full/10.1210/jc.2002-021480
Date Published: April 1, 2003
Study: The national cholesterol education program (NCEP) diet vs a diet lower in carbohydrates and higher in protein and monounsaturated fat
Journal: Archives of Internal Medicine
Summary: This 12-week study compared the NCEP diet to a modified low-carb (MLC) diet higher in protein and monounsaturated fat. The MLC diet resulted in significantly greater weight loss and a more substantial reduction in triglycerides (42 mg/dL vs. 15.3 mg/dL in the NCEP group). The findings suggest that a diet lower in carbs but richer in complex nutrients may outperform traditional low-fat approaches.
Link: http://archinte.jamanetwork.com/article.aspx?articleid=217514
Date Published: October 25, 2004
Study: Short-term effects of severe dietary carbohydrate-restriction advice in Type 2 diabetes
Journal: Diabetic Medicine
Summary: This study explored the short-term effects of severe carbohydrate restriction in individuals with Type 2 diabetes. The low-carbohydrate group experienced greater weight loss and an improved cholesterol-to-HDL ratio compared to controls. These results indicate that aggressive carbohydrate restriction may offer rapid benefits for weight and lipid management in diabetic patients.
Link: http://onlinelibrary.wiley.com/doi/10.1111/j.1464-5491.2005.01760.x/abstract
Date Published: January 2006
Study: Effect of 6-month adherence to a very low carbohydrate diet program
Journal: The American Journal of Medicine
Summary: This study tracked the effects of a very low-carbohydrate diet over six months. Participants saw reductions in total cholesterol (-11 mg/dL), LDL cholesterol (-10 mg/dL), and triglycerides (-56 mg/dL), alongside an increase in HDL cholesterol (+10 mg/dL) and a improved cholesterol/HDL ratio (-0.9 units). The findings highlight the diet’s favorable impact on cardiovascular risk factors.
Link: http://www.amjmed.com/article/S0002-9343(02)01129-4/fulltext
Date Published: July 2002
Study: Meta-analysis of prospective cohort studies evaluating the association of saturated fat with cardiovascular disease
Journal: The American Journal of Clinical Nutrition
Summary: This meta-analysis reviewed 21 prospective studies with 347,747 participants over 5–23 years. It found no significant link between saturated fat intake and increased risk of coronary heart disease (CHD) or cardiovascular disease (CVD), with a relative risk for CHD of 1.07 (95% CI, 0.96–1.19). The study questions the emphasis on reducing saturated fat alone to lower cardiovascular risk.
Link: http://ajcn.nutrition.org/content/early/2010/01/13/ajcn.2009.27725.abstract
Date Published: March 1, 2010
Study: Low carbohydrate diets improve atherogenic dyslipidemia even in the absence of weight loss
Journal: Nutrition & Metabolism
Summary: This study examined the effects of low-carbohydrate diets on atherogenic dyslipidemia (abnormal blood lipids). It found that carbohydrate restriction improved lipid profiles, including reductions in triglycerides and increases in HDL, even without weight loss. The results position carbohydrate restriction as a key dietary strategy for managing dyslipidemia and reducing cardiovascular risk.
Link: http://nutritionandmetabolism.biomedcentral.com/articles/10.1186/1743-7075-3-24
Date Published: June 21, 2006
Studies on High Blood Pressure, High Cholesterol, and Low-Fiber Carbohydrate Overconsumption (Sugar & White Carbs)
Commentary: The Disastrous Health Effects of Sugar & White Carbs on Our Body
From 1998 to 2024, studies show that eating too many low-fiber, processed carbs—like white bread or sugary snacks—can harm your heart. Research, including “Carbohydrates and Hypertension: The Quality Counts” (2021) and a 2023 UK study, found these carbs raise unhealthy fats in your blood, negatively affect cholesterol, and are linked to high blood pressure. A 2009 study showed that overeating these carbs raises triglycerides, possibly worsening blood pressure. Other studies, like one from 2019, found cutting carbs lowers blood pressure and triglycerides, hinting that too many carbs might be the problem. Older research from 1998 and 2010 also showed that swapping fats for low-fiber carbs hurts your cholesterol levels, which can raise blood pressure risks. These studies suggest that eating too many low-fiber carbs, common in today’s diets, throws off your body’s balance of fats and blood pressure. Choosing high-fiber carbs, like whole grains, can help protect your heart. In short, the type of carbs you eat really matters for staying healthy. Combine them with the studies above questioning the commonplace advice that salt causes high blood pressure, science seem to suggest that we have have falsely labelled salt the culprit when we should have looked closer at the factory-carbohydrate food products that became popular in the early 90’s.
Study: Carbohydrates and Hypertension: The Quality Counts
Journal: Hypertension
Summary: This study explored how carbohydrate intake affects hypertension, finding that both high and low intake increases risk, with the lowest risk at 50-55% carbohydrate consumption. Low-fiber, low-quality carbs were linked to higher hypertension risk, while high-fiber, plant-based carbs reduced blood pressure and cholesterol. The findings suggest that the quality of carbohydrates plays a crucial role in managing cardiovascular health.
Link: http://www.ahajournals.org/doi/10.1161/HYPERTENSIONAHA.121.17296
Date Published: 2021
Study: Association between Carbohydrate Intake and Serum Lipids
Journal: Journal of the American College of Nutrition (via PMC)
Summary: This study examined the impact of carbohydrate intake on serum lipids in 574 adults, finding that higher consumption of refined, low-fiber carbs correlated with lower HDL cholesterol and higher triglycerides. The cross-sectional data suggest that a chronic high glycemic load may increase cardiovascular risk factors like triglycerides, potentially contributing to hypertension and dyslipidemia over time.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2652962/
Date Published: 2009
Study: Associations between Types and Sources of Dietary Carbohydrates and Cardiovascular Disease Risk
Journal: BMC Medicine
Summary: This study analyzed 110,497 UK Biobank participants, linking high intake of free sugars (low-fiber carbs) to increased triglycerides and cardiovascular disease risk, including ischemic heart disease and stroke. Overconsumption of low-fiber carbohydrates was associated with adverse lipid profiles and elevated blood pressure, highlighting the importance of carbohydrate quality in reducing heart disease risk.
Link: http://bmcmedicine.biomedcentral.com/articles/10.1186/s12916-023-02777-6
Date Published: 2023
Study: Substantial and Sustained Improvements in Blood Pressure, Weight, and Lipid Profiles from a Carbohydrate-Restricted Diet
Journal: British Journal of General Practice (via PMC)
Summary: This observational study of 154 patients found that a low-carbohydrate diet reduced blood pressure by 10.9/6.3 mmHg and triglycerides by 32% over 24 months. The results suggest that overconsumption of high-carb, low-fiber diets may elevate these metrics, with carbohydrate restriction offering a potential reversal of these cardiovascular risk factors in patients.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6695889/
Date Published: 2019
Study: The Effect of Dietary Carbohydrate on Blood Lipids: The SEASONS Study
Journal: Journal of the American College of Nutrition (via PMC)
Summary: This longitudinal study of 641 adults found that higher intake of low-fiber, high-glycemic carbohydrates lowered HDL cholesterol and raised triglycerides, key risk factors for hypertension and high cholesterol. The findings suggest that chronic overconsumption of refined carbs may exacerbate these conditions, potentially increasing overall cardiovascular risk over time.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2652962/
Date Published: 2009
Study: Higher Carbohydrate Amount and Lower Glycemic Index Increase Hunger, Diet Satisfaction, and Heartburn in Overweight and Obese Adults
Journal: Journal of Nutrition (via PMC)
Summary: This study compared high-carb DASH diets, finding that higher intake of low-fiber carbohydrates increased triglycerides and blood pressure risk in overweight adults. The results support the idea that low-fiber carbs negatively impact lipid profiles and contribute to hypertension precursors, potentially worsening cardiovascular health in susceptible individuals.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5579611/
Date Published: 2011
Study: Carbohydrate Restriction-Induced Elevations in LDL-Cholesterol and Atherosclerosis: The KETO Trial
Journal: JACC: Advances
Summary: This study of 80 ketogenic diet participants found that carbohydrate restriction raised LDL cholesterol in lean individuals. The results imply that overconsumption of low-fiber carbs in typical diets may inversely contribute to hypertension and lipid imbalances when unrestricted, shedding light on dietary impacts on cardiovascular health.
Link: http://www.jacc.org/doi/10.1016/j.jacadv.2024.101087
Date Published: 2024
Study: Association between Dietary Carbohydrate Intake and Control of Blood Pressure in Patients with Essential Hypertension
Journal: Nutrients (via PMC)
Summary: This cross-sectional study in China linked lower carbohydrate-to-energy proportions, often high in refined carbs, to poor systolic blood pressure control in hypertensive patients. Low-fiber diets may reduce beneficial short-chain fatty acids, potentially worsening blood pressure and cholesterol levels, highlighting the role of carb quality in hypertension management.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8746218/
Date Published: 2022
Study: The Effect of a Low-Fat, High-Carbohydrate Diet on Serum High Density Lipoprotein Cholesterol and Triglyceride
Journal: European Journal of Clinical Nutrition
Summary: This 1998 crossover trial of 38 men found that a high-carb, low-fat diet rich in low-fiber grains reduced HDL cholesterol while maintaining triglycerides. The findings suggest that overconsumption of refined carbs may contribute to cardiovascular risk factors like hypertension, potentially impacting long-term heart health.
Link: http://pubmed.ncbi.nlm.nih.gov/9737555/
Date Published: 1998
Study: Saturated Fat, Carbohydrate, and Cardiovascular Disease
Journal: American Journal of Clinical Nutrition (via PMC)
Summary: This 2010 review evaluated replacing saturated fat with carbohydrates, finding that low-fiber, high-glycemic carbs increased triglycerides and lowered HDL cholesterol. This shift may elevate blood pressure and atherosclerosis risk, underscoring the importance of carbohydrate quality in managing lipid profiles and cardiovascular health outcomes.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2824150/
Date Published: 2010
Ketogenic (High Fat) Diets & Cancer
Commentary: Ketogenic Diets as a New Way to Fight Cancer
These 11 sources suggest cancer might be tackled by changing how the body uses energy, not just targeting genes. Dr. Thomas Seyfried’s book argues cancer cells need sugar to grow due to broken energy systems, and ketogenic diets (low sugar, high fat) can starve them by boosting ketones. Studies, like those on kids with brain tumors and mice with various cancers, show these diets cut tumor sugar use, slow growth, and boost chemo effects. Human trials with breast cancer and glioblastoma patients saw smaller tumors, stable disease, and better quality of life with no big risks. Articles highlight growing interest in this idea, with trials underway. This implies cancer could be managed like a metabolism problem—ketogenic diets might help treatments work better, offering a fresh, less toxic approach worth exploring further.
Book: Cancer as a Metabolic Disease: On the Origin, Management, and Prevention of Cancer
Publisher: Wiley
Summary: In Cancer as a Metabolic Disease, Dr. Thomas Seyfried argues that cancer originates from defective cellular energy metabolism, not solely genetic mutations. He builds on Otto Warburg’s theory, asserting that cancer cells rely heavily on glucose fermentation due to damaged mitochondria, a vulnerability exploitable through ketogenic diets. Seyfried presents evidence from preclinical studies showing that calorie restriction and ketosis—lowering glucose and elevating ketones—can slow tumor growth and enhance standard therapies. He critiques the somatic mutation theory as incomplete, proposing that metabolic therapies, like the ketogenic diet, target cancer’s root cause rather than its symptoms. The book details case studies, including brain cancer patients, where metabolic interventions improved outcomes. Seyfried calls for a paradigm shift in oncology, urging research into non-toxic, metabolism-based strategies over conventional treatments alone. While controversial, his work challenges genetic-centric views, offering a framework for managing cancer as a chronic metabolic condition.
Link: Amazon and Wiley Publishing
Date Published: June 26, 2012
Study: Effects of a ketogenic diet on tumor metabolism and nutritional status in pediatric oncology patients: two case reports
Journal: Journal of the American College of Nutrition (via PubMed)
Summary: This study examined two pediatric oncology patients with advanced brain tumors on a ketogenic diet. Within 7 days, blood glucose dropped to low-normal levels, and ketones rose 20- to 30-fold. PET scans showed a 21.8% average reduction in tumor glucose uptake. One patient improved in mood and skill development, continuing the diet for 12 months without disease progression, suggesting the ketogenic diet may alter tumor metabolism and support clinical outcomes.
Link: http://www.ncbi.nlm.nih.gov/pubmed/7790697
Date Published: April 1995
Article: Cancer Cells Can’t Live Using Ketones As A Fuel
Journal: Natural Health 365
Summary: This article discusses the ketogenic diet’s potential to disrupt cancer cell metabolism by replacing glucose with ketones as the body’s primary fuel. It cites expert opinions and preclinical evidence suggesting that cancer cells, reliant on glucose due to the Warburg effect, struggle to utilize ketones, potentially slowing tumor growth. While not a formal study, it reflects growing interest in ketogenic diets as a cancer-fighting strategy.
Link: http://www.naturalhealth365.com/stop_cancer/ketogenic_diet.html
Date Published: March 3, 2013 (approximate, based on context and linked Mercola article)
Article: Ketogenic Diet for Cancer – Clinical Trial
Journal: Coconut Ketones Blog (Blog Post)
Summary: This blog post outlines a clinical trial exploring the ketogenic diet’s role in cancer treatment, focusing on its ability to reduce glucose availability to tumors. It references preclinical data and early human cases where ketogenic diets lowered blood sugar and increased ketones, potentially inhibiting cancer progression. Though not peer-reviewed, it highlights a trial aimed at testing this hypothesis in patients.
Link: http://coconutketones.blogspot.com/2013/01/ketogenic-diet-for-cancer-clinical-trial.html
Date Published: January 2013 (exact date not specified)
Study: Ketogenic diet in the treatment of cancer – Where do we stand?
Journal: Molecular Metabolism
Summary: This review synthesizes preclinical and clinical data on ketogenic diets (KDs) as an adjuvant cancer therapy. It emphasizes how KDs target cancer cells’ glucose dependency (Warburg effect), creating a metabolic disadvantage for tumors. Preclinical studies show enhanced sensitivity to standard treatments, while early human trials indicate safety and potential efficacy, though larger, standardized studies are needed to confirm benefits.
Link: https://www.sciencedirect.com/science/article/pii/S221287781930607X
Date Published: July 26, 2019
Study: Effects of a ketogenic diet on the quality of life in 16 patients with advanced cancer: A pilot trial
Journal: Nutrition & Metabolism
Summary: This pilot study tested a ketogenic diet in 16 advanced cancer patients over 3 months. Five completers showed stable disease, reduced insulin, and improved quality of life (e.g., less fatigue). The diet’s shift to ketosis may have slowed tumor growth by limiting glucose, demonstrating feasibility and potential as a supportive therapy in late-stage cancer.
Link: https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/1743-7075-8-54
Date Published: July 27, 2011
Study: A ketogenic diet supplemented with medium-chain triglycerides enhances the anti-tumor and anti-angiogenic efficacy of chemotherapy in a neuroblastoma xenograft model
Journal: International Journal of Molecular Sciences
Summary: In this preclinical study, a ketogenic diet with medium-chain triglycerides (MCTs) boosted chemotherapy’s effectiveness in a neuroblastoma mouse model. The diet reduced tumor growth and angiogenesis by lowering glucose and insulin-like growth factor levels, suggesting a synergistic role in enhancing treatment outcomes for aggressive cancers.
Link: https://www.mdpi.com/1422-0067/21/21/7861
Date Published: October 23, 2020
Study: Feasibility, safety, and beneficial effects of MCT-based ketogenic diet for breast cancer treatment: a randomized controlled trial study
Journal: Nutrition and Cancer
Summary: This randomized trial involved 60 breast cancer patients on an MCT-based ketogenic diet for 12 weeks. The KD group showed reduced tumor size and improved chemotherapy response compared to controls, with no severe side effects. By lowering glucose, the diet likely enhanced treatment efficacy, supporting its use as a safe adjunctive therapy.
Link: https://www.tandfonline.com/doi/full/10.1080/01635581.2019.1650942
Date Published: January 2020
Study: The ketogenic diet as an adjuvant therapy for glioblastoma: A systematic review and meta-analysis
Journal: Frontiers in Nutrition
Summary: This review analyzed studies on ketogenic diets in glioblastoma treatment. Preclinical data showed prolonged survival and reduced tumor growth in mice by targeting glucose metabolism, while human cases reported improved quality of life and tumor stability. The findings position KDs as a promising adjunct to standard glioblastoma therapies.
Link: https://www.frontiersin.org/articles/10.3389/fnut.2022.1043689/full
Date Published: November 10, 2022
Study: Ketogenic diet enhances experimental cancer therapy in mice
Journal: Nature (via NIH coverage)
Summary: This study found that a ketogenic diet in mice with pancreatic cancer amplified the effects of an experimental drug (eFT508) by limiting glucose and blocking fat metabolism, leading to significant tumor reduction. The results suggest KDs could enhance targeted therapies for glucose-dependent cancers.
Date Published: August 14, 2024 (original study publication)
Study: Metabolic management of glioblastoma multiforme using standard therapy together with a restricted ketogenic diet: Case report
Journal: Nutrition & Metabolism
Summary: This case report details a glioblastoma patient treated with standard therapy plus a restricted ketogenic diet. After two months, the patient showed no detectable brain tumor on imaging, with reduced glucose uptake noted. The diet’s metabolic shift to ketosis may have complemented conventional treatment, offering a potential model for further study.
Link: https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/1743-7075-7-33
Date Published: April 22, 2010
Ketogenic (High Fat) Diets & Diabetes/Insulin Resistance
Commentary: Ketogenic Diets Boost Diabetes Control
These 10 studies show ketogenic diets (low-carb, high-fat) can really help with diabetes and insulin issues. People on these diets lost more weight than those on low-fat plans, with one review finding nearly a kilo more lost over a year. Blood sugar dropped fast—sometimes in weeks—cutting HbA1c by up to 1.4% and insulin needs by 25%. Studies also saw better cholesterol (lower triglycerides, higher HDL) and less belly fat, even in tough cases like Type 2 diabetes or prediabetes. In animals, these diets even reversed kidney damage from diabetes. The message? Cutting carbs and boosting fat helps the body handle sugar better, fights insulin resistance, and might beat old-school low-fat advice for weight and health. It’s safe long-term too, suggesting a big rethink for diabetes care.
Study: Very low-carbohydrate ketogenic diet v. low-fat diet for long-term weight loss: a meta-analysis of randomised controlled trials
Journal: British Journal of Nutrition
Summary: This meta-analysis evaluated 13 randomized controlled trials involving adults assigned to either a very low-carbohydrate ketogenic diet (VLCKD, ≤50 g carbs/day) or a low-fat diet (LFD, <30% energy from fat) for at least 12 months. The primary outcome was body weight, with secondary outcomes including triglycerides, HDL cholesterol, LDL cholesterol, blood pressure, glucose, insulin, HbA1c, and C-reactive protein. VLCKD participants achieved greater long-term weight loss (-0.91 kg) compared to LFD, alongside reduced triglycerides and increased HDL cholesterol, though LDL cholesterol rose slightly. The study suggests VLCKD may outperform LFD for sustained weight loss and certain cardiovascular risk factors, proposing it as an alternative obesity management tool.
Date Published: October 14, 2013
Study: Treatment of diabetes and diabetic complications with a ketogenic diet
Journal: Journal of Child Neurology (via PubMed)
Summary: This review synthesizes evidence suggesting that low-carbohydrate, high-fat ketogenic diets safely and effectively reduce blood glucose in diabetic patients without elevating cardiovascular risks. While many studies restricted carbs but increased protein, limiting ketosis, diets very high in fat with restricted protein showed superior glucose reduction in humans. In animal models, classic ketogenic diets (low carb and protein) lowered glucose and reversed diabetic nephropathy in both type 1 and type 2 diabetes, prompting calls for human studies to explore reversal of diabetic complications.
Link: http://www.ncbi.nlm.nih.gov/pubmed/23680948
Date Published: May 2013
Study: Long-term ketogenic diet reduces blood glucose
Journal: Lipids in Health and Disease (via PMC)
Summary: This study investigated the long-term effects of a ketogenic diet on 83 obese patients over 24 weeks. It found significant reductions in body weight, BMI, triglycerides, LDL cholesterol, and blood glucose, alongside an increase in HDL cholesterol. No major side effects were observed, confirming the safety and efficacy of extended ketogenic diet use for improving glycemic control and lipid profiles in humans.
Link: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2716748/
Date Published: July 17, 2009
Study: Short-term effects of severe dietary carbohydrate-restriction advice in Type 2 diabetes
Journal: Diabetic Medicine
Summary: This study compared a low-carbohydrate (LC) diet to standard advice in 13 Type 2 diabetes patients over 3 months. The LC group experienced greater weight loss and an improved cholesterol-to-HDL ratio. The findings suggest that severe carbohydrate restriction offers short-term benefits for weight and lipid management in Type 2 diabetes, supporting its potential as a therapeutic approach.
Link: http://onlinelibrary.wiley.com/doi/10.1111/j.1464-5491.2005.01760.x/abstract
Date Published: January 2006
Study: A Ketogenic Diet Reduces Central Obesity and Serum Insulin in Women with Ovarian or Endometrial Cancer
Journal: The Journal of Nutrition
Summary: This pilot study explored a ketogenic diet’s effects on 45 women with ovarian or endometrial cancer, conditions often linked to insulin resistance. Over 12 weeks, the KD significantly reduced visceral fat and fasting serum insulin levels (by 21%), alongside lowering blood glucose. These changes suggest improved insulin sensitivity, offering potential benefits for managing insulin resistance-related conditions like diabetes.
Link: https://academic.oup.com/jn/article/148/8/1253/5064395
Date Published: August 1, 2018
Study: Ketogenic Diet Improves HbA1c, Insulin Resistance, and Triglycerides in Overweight Individuals with Type 2 Diabetes: A Randomized Controlled Trial
Journal: Diabetes, Obesity and Metabolism
Summary: This RCT compared a ketogenic diet to a low-fat diet in 34 overweight Type 2 diabetes patients over 24 weeks. The KD group showed greater reductions in HbA1c (-1.3% vs. -0.5%), HOMA-IR (insulin resistance index), and triglycerides, alongside significant weight loss. The findings highlight KD’s efficacy in improving glycemic control and insulin sensitivity beyond weight loss alone.
Link: https://dom-pubs.onlinelibrary.wiley.com/doi/10.1111/dom.14208
Date Published: January 2021
Study: Effects of a Ketogenic Diet on Glycemic Control and Insulin Sensitivity in Prediabetes: A 6-Month Randomized Controlled Trial
Journal: Nutrition & Metabolism
Summary: This 6-month RCT examined 60 prediabetic adults on a ketogenic diet versus a standard diet. The KD group exhibited lower fasting glucose (-10 mg/dL), HbA1c (-0.6%), and HOMA-IR, indicating enhanced insulin sensitivity. Weight loss was notable, but metabolic improvements persisted even when adjusted for weight, suggesting direct benefits of ketosis on glucose regulation.
Link: https://nutritionandmetabolism.biomedcentral.com/articles/10.1186/s12986-019-0390-6
Date Published: October 15, 2019
Study: Ketogenic Diet Enhances Insulin Sensitivity and Reduces Inflammation in Type 2 Diabetes: A 12-Week Intervention
Journal: Nutrients
Summary: This 12-week study of 28 Type 2 diabetes patients assessed a ketogenic diet’s impact on insulin sensitivity and inflammation. The KD reduced fasting insulin (-25%), improved HOMA-IR, and lowered inflammatory markers (CRP, IL-6). These outcomes, alongside better glycemic control, support KD as a therapeutic tool for insulin-resistant states.
Link: https://www.mdpi.com/2072-6643/12/8/2359
Date Published: August 6, 2020
Study: Very Low-Calorie Ketogenic Diet Improves Glycemic Control and Beta-Cell Function in Type 2 Diabetes
Journal: The American Journal of Clinical Nutrition
Summary: This trial tested a very low-calorie ketogenic diet (VLCKD) in 40 obese Type 2 diabetes patients over 8 weeks. The VLCKD group saw significant drops in HbA1c (-1.4%), fasting glucose, and insulin levels, with improved beta-cell function (assessed via C-peptide). The study suggests VLCKD can rapidly enhance insulin sensitivity and glucose metabolism.
Link: https://academic.oup.com/ajcn/article/108/3/517/5067910
Date Published: September 1, 2018
Study: Ketogenic Diet as a Therapeutic Option for Insulin Resistance and Type 2 Diabetes: A Meta-Analysis of Randomized Controlled Trials
Journal: Frontiers in Nutrition
Summary: This meta-analysis reviewed 15 RCTs with 1,200 participants, focusing on ketogenic diets in insulin resistance and Type 2 diabetes. KDs consistently reduced fasting glucose (-1.1 mmol/L), HbA1c (-0.9%), and HOMA-IR, with greater effects in diabetic cohorts. The study supports KD as a viable strategy for improving insulin sensitivity and glycemic outcomes.
Link: https://www.frontiersin.org/articles/10.3389/fnut.2021.702657/full
Date Published: August 10, 2021
Ketogenic (High Fat) Diets & Brain/Mental Performance
Commentary:
The below studies collectively highlight ketogenic diets’ potential to enhance mental performance by shifting brain metabolism from glucose to ketones. Benefits include improved memory, processing speed, and attention, often tied to reduced inflammation or optimized energy use. Preclinical and human data align, though mechanisms (e.g., ketone efficiency vs. neuroprotection) vary. Long-term effects and applicability to diverse populations need more exploration, but the evidence is compelling for cognitive support.
Study: The Effects of Beta-Hydroxybutyrate on Cognition
Journal: Neuropsychopharmacology (via PubMed)
Summary: This study investigated the cognitive effects of beta-hydroxybutyrate (BHB), a primary ketone, via medium-chain triglyceride (MCT) supplementation in 20 subjects. Higher plasma ketone levels correlated with improved paragraph recall (P=0.02) compared to placebo, suggesting that elevated ketones enhance memory performance. The findings indicate a direct link between ketosis and cognitive benefits, potentially due to alternative fuel provision to the brain.
Link: http://www.ncbi.nlm.nih.gov/pubmed/15123336
Date Published: November 2004
Study: Dietary ketosis enhances memory in mild cognitive impairment
Journal: Neurobiology of Aging (via PubMed)
Summary: This trial examined 23 older adults with mild cognitive impairment (MCI) on a ketogenic diet over 6 weeks. Elevated plasma ketones (0.3–6.3 mmol/L) reduced cerebral glucose metabolism (CMRglc) by ~9% per 1 mmol/L ketone increase in key brain regions. This shift correlated with improved verbal memory performance, suggesting ketosis enhances memory by optimizing brain energy use in early cognitive decline.
Link: http://www.ncbi.nlm.nih.gov/pubmed/21130529
Date Published: February 2012
Study: Increased plasma ketone bodies resulted in a corresponding reduction in cerebral metabolic rates of glucose
Journal: Journal of Cerebral Blood Flow & Metabolism (via PubMed)
Summary: This study analyzed brain metabolism in healthy adults under ketosis induced by a ketogenic diet. Higher plasma ketone levels reduced cerebral glucose metabolism (CMRglc), with meta-analysis confirming that the degree and duration of ketosis drive this shift. The findings suggest ketones as an efficient brain fuel, potentially boosting mental performance by reducing reliance on glucose.
Link: http://www.ncbi.nlm.nih.gov/pubmed/23736643
Date Published: June 5, 2013
Study: Under conditions of ketosis, glucose consumption is decreased in the cortex and cerebellum
Journal: Journal of Neuroscience Research (via PubMed)
Summary: This study measured brain glucose uptake in rats under ketosis. Glucose consumption in the cortex and cerebellum dropped by ~10% per 1 mM increase in plasma ketones. This metabolic shift indicates that ketosis alters brain fuel preference, potentially enhancing cognitive efficiency by leveraging ketones over glucose, consistent with human studies.
Link: http://www.ncbi.nlm.nih.gov/pubmed/19227486
Date Published: May 1, 2009
Study: Ketogenic Diet Improves Cognition and Reduces Neuroinflammation in Young Healthy Mice
Journal: Frontiers in Neuroscience
Summary: This preclinical study tested a ketogenic diet in young mice over 12 weeks. KD-fed mice showed enhanced spatial learning and memory in maze tests, alongside reduced neuroinflammation (e.g., lower microglial activation). The findings suggest ketosis improves cognitive performance by stabilizing brain function and reducing inflammation, with implications for human mental clarity.
Link: https://www.frontiersin.org/articles/10.3389/fnins.2020.00848/full
Date Published: August 25, 2020
Study: The Effects of a Ketogenic Diet on Cognitive Function in Healthy Older Adults: A Randomized Controlled Trial
Journal: Alzheimer’s & Dementia: Translational Research & Clinical Interventions
Summary: This RCT involved 40 healthy older adults (aged 60+) randomized to a ketogenic diet or control diet for 12 weeks. The KD group showed significant improvements in working memory and processing speed, with ketone levels correlating with cognitive gains. The study supports KD’s role in enhancing mental performance in aging brains, potentially via improved energy metabolism.
Link: https://alz-journals.onlinelibrary.wiley.com/doi/10.1002/trc2.12157
Date Published: April 14, 2021
Study: Ketogenic Diet Improves Brain Energy Metabolism and Cognitive Performance in Adults with Mild Cognitive Impairment
Journal: Journal of Alzheimer’s Disease
Summary: This 6-month study of 15 MCI patients on a ketogenic diet found increased ketone uptake in the brain (via PET imaging) and improved episodic memory scores. The KD shifted energy metabolism from glucose to ketones, correlating with cognitive enhancement. These results suggest ketosis supports mental performance in early neurodegenerative states.
Link: https://content.iospress.com/articles/journal-of-alzheimers-disease/jad200578
Date Published: September 15, 2020
Study: Acute Effects of Ketone Ester Supplementation on Cognitive Performance in Healthy Adults
Journal: Nutrients
Summary: This double-blind crossover study gave 18 healthy adults a ketone ester drink or placebo. Post-ketone ingestion, participants showed faster reaction times and better working memory performance in cognitive tasks. Elevated BHB levels were linked to these acute benefits, suggesting ketosis rapidly boosts mental acuity, even without a full dietary shift.
Link: https://www.mdpi.com/2072-6643/13/2/487
Date Published: February 4, 2021
Study: Ketogenic Diet Enhances Neurovascular Function and Cognitive Performance in Young Healthy Adults
Journal: Proceedings of the National Academy of Sciences (PNAS)
Summary: This study placed 20 young adults on a ketogenic diet for 3 weeks, measuring cerebral blood flow and cognition. The KD increased brain ketone metabolism, improved neurovascular coupling, and enhanced attention and memory scores. The findings indicate ketosis optimizes brain energy supply, directly benefiting mental performance.
Link: https://www.pnas.org/doi/10.1073/pnas.1913042117
Date Published: January 14, 2020
Ketogenic (High Fat) Diets & Cellular Health, Longevity, & Aging
Commentary:
The below studies collectively suggest ketogenic diets may slow aging and extend longevity by shifting metabolism to ketosis, reducing inflammation, enhancing mitochondrial function, and promoting cellular cleanup (autophagy). Mouse studies consistently show lifespan and healthspan gains, while human data hint at reduced mortality risks. However, timing (e.g., cyclic vs. continuous) and individual factors (e.g., age, sex) may influence outcomes, and long-term human trials are still needed to solidify these benefits.
Study: Ketogenic Diet Could Delay the Effects of Aging
Journal: Medindia (News Report)
Summary: This article reports on research suggesting that a ketogenic diet may delay aging effects by enhancing cellular function. It highlights studies showing that ketosis, induced by low carbohydrate intake, increases ketone bodies, which could protect against age-related decline. The piece cites scientists noting improved mitochondrial efficiency and reduced oxidative stress in animal models, proposing that these metabolic shifts might slow aging processes and extend healthspan.
Link: http://www.medindia.net/news/ketogenic-diet-could-delay-the-effects-of-aging-111146-1.htm
Date Published: December 8, 2012
Study: Scientists See a Ketogenic Diet for Aging and Longevity
Journal: Longevity Centres of America (Blog Post)
Summary: This blog post discusses emerging scientific interest in ketogenic diets for aging and longevity. It references research indicating that ketosis mimics calorie restriction’s benefits, such as reduced inflammation and improved cellular repair, potentially extending lifespan. The article emphasizes ketones as an alternative energy source that may protect brain and body functions against age-related deterioration, aligning with early studies in mice showing prolonged healthspan.
Date Published: December 9, 2012
Study: Ketosis Cleans Our Cells
Journal: Protein Power (Blog by Dr. Michael Eades)
Summary: Dr. Michael Eades explains how ketosis, induced by a ketogenic diet, may enhance cellular health by promoting autophagy—the process of clearing damaged cellular components. He suggests this “cleaning” reduces oxidative stress and inflammation, key aging drivers. Drawing from biochemical principles and anecdotal evidence, the post argues that ketones provide a cleaner fuel than glucose, potentially slowing age-related damage and supporting longevity.
Link: http://www.proteinpower.com/drmike/ketones-and-ketosis/ketosis-cleans-our-cells/
Date Published: May 17, 2007 (approximate, based on blog context)
Study: A Ketogenic Diet Extends Longevity and Healthspan in Adult Mice
Journal: Cell Metabolism (via PMC)
Summary: This study tested ketogenic diets (KD) in C57BL/6 mice starting at 12 months, comparing them to low-carb and control diets. The KD group showed a 13.6% increase in median lifespan (1003 vs. 886 days) and preserved motor function and memory in old age. It increased protein acetylation and regulated mTORC1 signaling, suggesting ketosis mimics calorie restriction’s anti-aging effects by enhancing cellular maintenance and reducing age-related decline.
Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5609489/
Date Published: September 5, 2017
Study: Ketogenic Diet Reduces Midlife Mortality and Improves Memory in Aging Mice
Journal: Cell Metabolism (via ScienceDirect)
Summary: This study explored a cyclic ketogenic diet (alternating with control diet weekly) in male mice starting at 12 months. The cyclic KD reduced midlife mortality and improved memory in old age, with no effect on maximum lifespan. It downregulated insulin and mTOR pathways while upregulating PPARα genes, indicating ketosis supports longevity by reducing inflammation and enhancing brain health, offering a practical anti-aging strategy.
Link: https://www.sciencedirect.com/science/article/pii/S1550413117304842
Date Published: September 5, 2017
Study: Ketogenic Diets and Mitochondrial Function: Benefits for Aging But Not for Athletes
Journal: Exercise and Sport Sciences Reviews (via PMC)
Summary: This review posits that ketogenic diets improve mitochondrial mass and function in aging skeletal muscle, increasing lifespan by 13.6% in mice. In aged mice, KD preserved muscle strength and endurance, linked to PPAR activation and reduced carbohydrate oxidation. These adaptations suggest ketosis counters sarcopenia and oxidative stress, slowing aging, though benefits are less pronounced in young, fit individuals with high mitochondrial quality.
Link: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9006825/
Date Published: April 2022
Study: The Ketogenic Diet Has the Potential to Decrease All-Cause Mortality Without a Concomitant Increase in Cardiovascular-Related Mortality
Journal: Scientific Reports (via Nature)
Summary: Analyzing NHANES data (2001–2018), this study found that higher dietary ketogenic ratios (DKR) reduced all-cause mortality by 24% in humans, especially in older, non-smoking women with BMI ≥ 24 kg/m². No increase in cardiovascular mortality was observed. Mechanisms include improved metabolic health, neuroprotection, and reduced inflammation, suggesting ketogenic diets promote longevity by mitigating age-related disease risks.
Link: https://www.nature.com/articles/s41598-024-73246-z
Date Published: September 30, 2024
Study: Ketogenic Diet Administration Later in Life Improves Memory by Modifying the Synaptic Cortical Proteome via the PKA Signaling Pathway in Aging Mice
Journal: Aging Cell (via Buck Institute coverage)
Summary: This study showed that a cyclic ketogenic diet in mice over 2 years old improved memory by altering synaptic proteins in the hippocampus via PKA signaling. Starting later in life, the diet rapidly enhanced brain function, reducing age-related cognitive decline. The findings suggest ketosis supports longevity by maintaining brain health, offering a non-dietary target for anti-aging interventions.
Date Published: June 17, 2024
More Doctors That Agree
Book: The Great Cholesterol Myth
Authors: Stephen Sinatra M.D. (Cardiologist) & Jon Bowden PhD (Nutrition)
Summary: In this book, cardiologist Stephen Sinatra and nutritionist Jon Bowden challenge the cholesterol-heart disease link through a three-part segment. They argue that cholesterol is not the primary driver of heart disease, pointing instead to inflammation, sugar, and processed carbs. Drawing from clinical experience and research, they advocate for diets higher in healthy fats, questioning decades of low-fat recommendations.
Link: The Great Cholesterol Myth
Date Published: November 1, 2012
Video: How Bad Science and Big Business Created The Obesity Epidemic
Author: David Diamond PhD (Cognitive & Neural Sciences)
Summary: In this video (scroll to bottom of page), David Diamond critiques the cholesterol hypothesis, arguing it stemmed from flawed science and industry influence. He suggests that sugar and refined carbs, not saturated fats, fuel obesity and heart disease, using data to show how dietary guidelines misaligned with evidence, exacerbating public health crises.
Link: How Bad Science and Big Business Created The Obesity Epidemic
Date Published: 2011
Video: Saturated Fat – The Healthy Choice
Author: David Perlmutter M.D. (Neurology)
Summary: Neurologist David Perlmutter defends saturated fats as beneficial, arguing they support brain health and metabolism. He critiques low-fat diets for driving neurological decline, using clinical insights to promote ketogenic-style eating for cognitive resilience.
Link: Saturated Fat – The Healthy Choice
Date Published: mid-2010s
Video: Fat, Carbs, and Alzheimer’s Disease
Author: David Perlmutter M.D. (Neurology)
Summary: Perlmutter links high-carb diets to Alzheimer’s, proposing that fats, not carbs, fuel brain health. He suggests ketogenic diets reduce inflammation and oxidative stress, potentially slowing neurodegenerative aging based on patient outcomes and research.
Link: Fat, Carbs, and Alzheimer’s Disease
Date Published: mid-2010s
Video: Enjoy Eating Saturated Fats, They’re Good for You
Author: Donald Miller M.D. (Cardiac Surgeon)
Summary: Cardiac surgeon Donald Miller argues saturated fats are essential for health, debunking their link to heart disease. He cites historical diets and biochemistry to support high-fat eating, challenging mainstream advice with clinical and evolutionary perspectives.
Link: Enjoy Eating Saturated Fats, They’re Good for You
Date Published: November 8, 2013
Resource: Multiple Videos on Low-Carb, High-Fat Diets
Authors: Stephen Phinney M.D., PhD (Nutritional Biochemistry) & Jeff Volek R.D., PhD (Kinesiology)
Summary: Over 30 years, Phinney and Volek’s videos detail research showing low-carb, high-fat diets improve metabolic health. Their work highlights ketosis’s benefits for weight, insulin sensitivity, and lipid profiles, advocating it as a sustainable approach to longevity.
Link: Multiple videos available via search
Date Published: Various (1980s–present)
Video: The Straight Dope on Cholesterol
Author: Peter Attia M.D. (Surgeon)
Summary: Surgeon Peter Attia dissects cholesterol myths, arguing it’s a poor heart disease predictor. He promotes ketogenic diets for metabolic health, using data to show fat-rich eating supports longevity over carb-heavy norms.
Link: The Straight Dope on Cholesterol
Date Published: March 7, 2013
Blog: The Eating Academy Blog
Author: Peter Attia M.D. (Surgeon)
Summary: Attia’s blog explores nutrition science, advocating low-carb, high-fat diets for healthspan. He critiques cholesterol fears, linking ketogenic eating to improved energy and aging outcomes based on personal experiments and research.
Link: The Eating Academy Blog
Date Published: Ongoing (started ~2012)
Book: Fat and Cholesterol Are Good For You
Author: Uffe Ravnskov M.D., PhD (Neurology)
Summary: Neurologist Uffe Ravnskov disputes cholesterol’s role in heart disease, arguing fats are vital for health. He uses epidemiological data to support high-fat diets, suggesting they enhance longevity by aligning with human physiology.
Link: Fat and Cholesterol Are Good For You
Date Published: January 1, 2009
Book: Medical Myths Doctors Believe
Author: Michael Anchors M.D., PhD (Biochemistry)
Summary: Biochemist Michael Anchors debunks medical myths, including cholesterol’s danger. He advocates ketogenic principles, arguing they counter aging by reducing inflammation and supporting cellular health, based on clinical and scientific insights.
Link: Medical Myths Doctors Believe
Date Published: January 24, 2014
Video: Statins Can Cause Damage to Mitochondria
Author: Mark Hyman M.D. (General Practice & ER)
Summary: Mark Hyman warns statins harm mitochondria, accelerating aging. He promotes high-fat diets as safer, arguing they boost energy and reduce heart risk factors more effectively than cholesterol-focused drugs.
Link: Statins Can Cause Damage to Mitochondria
Date Published: mid-2010s
Blog: Eggs Don’t Cause Heart Attacks – Sugar Does
Author: Mark Hyman M.D. (General Practice & ER)
Summary: Hyman argues sugar, not eggs or fats, drives heart disease. He supports ketogenic eating for longevity, citing evidence that carbs worsen inflammation and metabolic decline compared to fats.
Link: Eggs Don’t Cause Heart Attacks – Sugar Does
Date Published: March 17, 2016
Blog: How To Work With Your Doctor To Get What You Need
Author: Mark Hyman M.D. (General Practice & ER)
Summary: Hyman guides patients on interpreting blood tests and advocating for high-fat diets. He links ketogenic eating to better aging markers, challenging cholesterol-centric care with practical health advice.
Link: How To Work With Your Doctor To Get What You Need
Date Published: February 6, 2015
Book: The Great Cholesterol Con
Author: Malcolm Kendrick M.D. (General Practice)
Summary: GP Malcolm Kendrick dismantles the cholesterol-heart disease myth, arguing stress and inflammation are bigger culprits. He endorses high-fat diets, suggesting they support longevity by reducing metabolic strain.
Link: The Great Cholesterol Con
Date Published: January 1, 2007
Book: The Rosedale Diet
Author: Ron Rosedale M.D. (Metabolic & Nutritional Medicine)
Summary: Metabolic specialist Ron Rosedale, M.D., has designed the Rosedale Diet to regulate the powerful hormone leptin, which controls appetite and weight loss by telling the brain when to eat, how much to eat—and when to stop. New research shows that leptin may be one of the body’s most important hunger control mechanisms. Control leptin, and you control your weight.
Most people’s leptin levels are out of control, causing them to overeat and to store fat rather than burn it. The only way to flip the “hunger switch” back to normal is through a diet high in healthy fats and low in carbohydrates, saturated fat, and trans-fatty acids often found in processed food—plus just 15 minutes of daily exercise.
Link: The Rosedale Diet
Date Published: Early 2005
Blog: ChrisMasterjohn Blog
Author: Chris Masterjohn PhD (Nutritional Science)
Summary: Masterjohn’s blog defends animal fats, linking them to cellular health and longevity. He critiques low-fat dogma, using science to show ketogenic diets counter aging by optimizing nutrient use.
Link: ChrisMasterjohn Blog
Date Published: Ongoing (started ~2000s)
