ω-3 polyunsaturated fatty acid supplementation does not influence body composition, insulin resistance, and lipemia in women with type 2 diabetes and obesity

Nutr Clin Pract. 2012 Aug;27(4):553-60. doi: 10.1177/0884533612444535. Epub 2012 Jun 1.

Abstract

To evaluate the influence of ω-3 polyunsaturated fatty acid (ω-3 PUFA) supplementation on body composition, insulin resistance, and lipemia of women with type 2 diabetes, the authors evaluated 41 women (60.64 ± 7.82 years) with high blood pressure and diabetes mellitus in a randomized and single-blind longitudinal intervention study. The women were divided into 3 groups: GA (2.5 g/d fish oil), GB (1.5 g/d fish oil), and GC (control). The capsules with the supplement contained 21.9% of eicosapentaenoic acid and 14.1% of docosapentaenoic acid. Biochemical (glucose, glycated hemoglobin, total and fractional cholesterol, triglycerides, and insulin) and anthropometric (body mass, stature, waist circumference [WC], and body composition) evaluations were performed before and after the 30 days of intervention. Homeostasis model assessment-insulin resistance and the Quantitative Insulin Sensitivity Check Index were used to evaluate the insulin resistance and insulin sensitivity (IS), respectively. GB presented a greater loss of body mass and WC (P < .05), greater frequency of glycemic and total cholesterol reduction, and an increase of high-density lipoprotein cholesterol compared with GA. Thus, a high dose of ω-3 PUFA can reduce IS. A lower dose of ω-3 PUFA positively influenced body composition and lipid metabolism.

Publication types

  • Randomized Controlled Trial
  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aged
  • Blood Glucose / analysis
  • Body Composition*
  • Body Mass Index
  • Cholesterol / blood
  • Diabetes Mellitus, Type 2 / drug therapy
  • Diabetes Mellitus, Type 2 / physiopathology
  • Dietary Supplements*
  • Eicosapentaenoic Acid / administration & dosage*
  • Fatty Acids, Unsaturated / administration & dosage*
  • Female
  • Fish Oils / administration & dosage
  • Glycated Hemoglobin A / analysis
  • Humans
  • Hyperlipidemias / drug therapy*
  • Hyperlipidemias / physiopathology
  • Insulin / blood
  • Insulin Resistance*
  • Middle Aged
  • Obesity / drug therapy
  • Obesity / physiopathology
  • Single-Blind Method
  • Triglycerides / blood
  • Waist Circumference

Substances

  • Blood Glucose
  • Fatty Acids, Unsaturated
  • Fish Oils
  • Glycated Hemoglobin A
  • Insulin
  • Triglycerides
  • Cholesterol
  • Eicosapentaenoic Acid
  • docosapentaenoic acid