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Effect of a low-carbohydrate, ketogenic diet program compared to a low-fat diet on fasting lipoprotein subclasses.

Publication ,  Journal Article
Westman, EC; Yancy, WS; Olsen, MK; Dudley, T; Guyton, JR
Published in: Int J Cardiol
June 16, 2006

BACKGROUND: Low-carbohydrate, ketogenic diets (LCKD) are effective for weight loss, but concerns remain regarding cardiovascular risk. The purpose of this study was to determine the effect of an LCKD program on serum lipoprotein subclasses. METHODS: This was a randomized, two-arm clinical trial in an outpatient research clinic involving overweight, hyperlipidemic community volunteers motivated to lose weight. Subjects were randomized to either an LCKD (n = 59) and nutritional supplementation (including fish, borage and flaxseed oil), or a low-fat, reduced-calorie diet (LFD, n = 60). The main outcomes were fasting serum lipoprotein subclasses determined by nuclear magnetic resonance analysis. RESULTS: The mean age of subjects was 44.9 years, the mean BMI was 34.4 kg/m(2), and 76% were women. Comparing baseline to 6 months, the LCKD group had significant changes in large VLDL (-78%), medium VLDL (-60%), small VLDL (-57%), LDL particle size (+2%), large LDL (+54%), medium LDL (-42%), small LDL (-78%), HDL particle size (+5%), large HDL (+21%), and LDL particle concentration (-11%). Compared with the LFD group, the LCKD group had greater reductions in medium VLDL (p = 0.01), small VLDL (p = 0.01) and medium LDL (p = 0.02), and greater increases in VLDL particle size (p = 0.01), large LDL (p = 0.004), and HDL particle size (p = 0.05). CONCLUSIONS: The LCKD with nutritional supplementation led to beneficial changes in serum lipid subclasses during weight loss. While the LCKD did not lower total LDL cholesterol, it did result in a shift from small, dense LDL to large, buoyant LDL, which could lower cardiovascular disease risk.

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Published In

Int J Cardiol

DOI

ISSN

0167-5273

Publication Date

June 16, 2006

Volume

110

Issue

2

Start / End Page

212 / 216

Location

Netherlands

Related Subject Headings

  • White People
  • Weight Loss
  • Time Factors
  • Nuclear Magnetic Resonance, Biomolecular
  • Middle Aged
  • Male
  • Lipoproteins
  • Humans
  • Female
  • Fasting
 

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Westman, E. C., Yancy, W. S., Olsen, M. K., Dudley, T., & Guyton, J. R. (2006). Effect of a low-carbohydrate, ketogenic diet program compared to a low-fat diet on fasting lipoprotein subclasses. Int J Cardiol, 110(2), 212–216. https://doi.org/10.1016/j.ijcard.2005.08.034
Westman, Eric C., William S. Yancy, Maren K. Olsen, Tara Dudley, and John R. Guyton. “Effect of a low-carbohydrate, ketogenic diet program compared to a low-fat diet on fasting lipoprotein subclasses.Int J Cardiol 110, no. 2 (June 16, 2006): 212–16. https://doi.org/10.1016/j.ijcard.2005.08.034.
Westman EC, Yancy WS, Olsen MK, Dudley T, Guyton JR. Effect of a low-carbohydrate, ketogenic diet program compared to a low-fat diet on fasting lipoprotein subclasses. Int J Cardiol. 2006 Jun 16;110(2):212–6.
Westman, Eric C., et al. “Effect of a low-carbohydrate, ketogenic diet program compared to a low-fat diet on fasting lipoprotein subclasses.Int J Cardiol, vol. 110, no. 2, June 2006, pp. 212–16. Pubmed, doi:10.1016/j.ijcard.2005.08.034.
Westman EC, Yancy WS, Olsen MK, Dudley T, Guyton JR. Effect of a low-carbohydrate, ketogenic diet program compared to a low-fat diet on fasting lipoprotein subclasses. Int J Cardiol. 2006 Jun 16;110(2):212–216.
Journal cover image

Published In

Int J Cardiol

DOI

ISSN

0167-5273

Publication Date

June 16, 2006

Volume

110

Issue

2

Start / End Page

212 / 216

Location

Netherlands

Related Subject Headings

  • White People
  • Weight Loss
  • Time Factors
  • Nuclear Magnetic Resonance, Biomolecular
  • Middle Aged
  • Male
  • Lipoproteins
  • Humans
  • Female
  • Fasting