Cited by 312Diet and metabolism studiesDietary Effects on HealthNutritional Studies and Diet

A ketogenic diet favorably affects serum biomarkers for cardiovascular disease in normal-weight men

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Sharman, Matthew J., Kraemer, William J., Love, Dawn M., Avery, Neva G., Gómez, Ana L., Scheett, Timothy P., Volek, Jeff S.·2002·The Journal of Nutrition

Abstract

Very low-carbohydrate (ketogenic) diets are popular yet little is known regarding the effects on serum biomarkers for cardiovascular disease (CVD). This study examined the effects of a 6-wk ketogenic diet on fasting and postprandial serum biomarkers in 20 normal-weight, normolipidemic men. Twelve men switched from their habitual diet (17% protein, 47% carbohydrate and 32% fat) to a ketogenic diet (30% protein, 8% carbohydrate and 61% fat) and eight control subjects consumed their habitual diet for 6 wk. Fasting blood lipids, insulin, LDL particle size, oxidized LDL and postprandial triacylglycerol (TAG) and insulin responses to a fat-rich meal were determined before and after treatment. There were significant decreases in fasting serum TAG (-33%), postprandial lipemia after a fat-rich meal (-29%), and fasting serum insulin concentrations (-34%) after men consumed the ketogenic diet. Fasting serum total and LDL cholesterol and oxidized LDL were unaffected and HDL cholesterol tended to increase with the ketogenic diet (+11.5%; P = 0.066). In subjects with a predominance of small LDL particles pattern B, there were significant increases in mean and peak LDL particle diameter and the percentage of LDL-1 after the ketogenic diet. There were no significant changes in blood lipids in the control group. To our knowledge this is the first study to document the effects of a ketogenic diet on fasting and postprandial CVD biomarkers independent of weight loss. The results suggest that a short-term ketogenic diet does not have a deleterious effect on CVD risk profile and may improve the lipid disorders characteristic of atherogenic dyslipidemia.

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Authors
Sharman, M. J., Kraemer, W. J., Love, D. M., Avery, N. G., Gómez, A. L., Scheett, T. P., & Volek, J. S.
Affiliations
University of Connecticut (US)
Corresponding author
Volek, Jeff S.
Venue
The Journal of Nutrition
Publisher
Elsevier BV
Published
2002-07
Volume
132
Issue
7
Pages
1879-1885
ISSN
0022-3166 (ISSN-L)
OpenAlex
W2096171864
Cited by
312
References
43
Citations by year
2026: 4 · 2025: 6 · 2024: 14 · 2023: 11 · 2022: 18 · 2021: 9 · 2020: 68 · 2019: 15 · 2018: 10 · 2017: 10 · 2016: 8 · 2015: 10 · 2014: 9 · 2013: 5 · 2012: 7
FWCI
9.19
Type
journal article
Language
en
Open access
Locations
  • Journal of Nutrition (publishedVersion)
  • PubMed (publishedVersion)
  • eCite Digital Repository (University of Tasmania) (submittedVersion)
  • Figshare (submittedVersion, cc-by)
Topics
  • Health Sciences › Medicine › Physiology › Diet and metabolism studies
  • Health Sciences › Medicine › Physiology › Dietary Effects on Health
  • Health Sciences › Medicine › Public Health, Environmental and Occupational Health › Nutritional Studies and Diet
Keywords
ketogenic diet, very low carbohydrate diet, cardiovascular risk, serum biomarkers, postprandial lipemia, triglycerides, insulin, LDL particle size, oxidized LDL, HDL cholesterol, LDL cholesterol, atherogenic dyslipidemia, high-fat meal
MeSH terms
Adult, Body Weight, Energy Intake, Cardiovascular Diseases, Diet, Dietary Fats, Fasting, Humans, Insulin, Ketosis, Lipids, Lipoproteins, LDL, Male, Middle Aged, Reference Values, Triglycerides, Biomarkers, Postprandial Period

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