Abstract Title:

Metabolic effects ofα-lipoic acid supplementation in pre-diabetics: a randomized, placebo-controlled pilot study.

Abstract Source:

Food Funct. 2019 Sep 1 ;10(9):5732-5738. Epub 2019 Aug 27. PMID: 31453617

Abstract Author(s):

Luc E Gosselin, Lauren Chrapowitzky, Todd C Rideout

Article Affiliation:

Luc E Gosselin


Supplementation of health promoting nutraceuticals may be an effective adjunct strategy with other lifestyle and drug approaches to impede disease progression in prediabetic subjects.α-Lipoic acid, a naturally occurring short-chain fatty acid, has been extensively evaluated for its antioxidant and glycemic control properties but has rarely been investigated as a lipid-lowering strategy. We conducted a pilot study to examine the effects of α-lipoic acid supplementation on glycemic control and lipid profile in pre-diabetic, overweight/obese adults. The study was designed as a free-living, randomized, two-phase, placebo-controlled cross-over study with 12 pre-diabetic, dyslipidemic subjects. Eligible subjects completed two thirty-day phases (in random order) consisting of aplacebo (600 mg cellulose per day) and α-lipoic acid treatment (600 mg day). Although no change (p<0.05) in serum glucose was observed,α-lipoic acid-supplemented subjects demonstrated reduced fasting serum insulin (p = 0.04) and HOMA-IR (p = 0.07) compared with the placebo group. However, no change (p>0.05) in serum lipids (including total cholesterol, LDL-C, HDL-C, triglycerides, LDL-C/HDL-C, and TC/HDL-C) were observed. Study results suggest thatα-lipoic acid supplementation may be a useful strategy to improve insulin sensitivity in pre-diabetic subjects but is not effective in modulating serum lipids.

Study Type : Human Study

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