Insulin Resistance Clinical Trial
Official title:
Dietary Omega-3 Fatty Acids as a Therapeutic Strategy in Insulin Resistant Humans
This study is being done to understand the effects of dietary omega-3 fats on insulin sensitivity in adult men and women.
Dietary omega-3 polyunsaturated fatty acids (n-3 PUFA), which include eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA) from fish oil, prevent insulin resistance in rodents, but data in humans is ambiguous. No existing studies have systematically evaluated the influence of n-3 PUFAs on insulin sensitivity and beta cell function in insulin resistant, non-diabetic humans. The Investigators hypothesize that 6 months of oral supplementation of purified EPA/DHA (3.9g/day) will significantly improve hepatic and peripheral insulin sensitivity and beta cell responsiveness in insulin-resistant, non-diabetic individuals. Based on recent work in mice, the investigators also hypothesize that EPA/DHA will increase the content and function of mitochondria in skeletal muscle, measured using a combination of in vivo and in vitro methods. Overall, the investigators hypothesize that EPA+DHA supplementation will improve hepatic and peripheral insulin sensitivity in insulin resistant humans, and this improvement will be associated with mitochondrial biogenesis and attenuated lipid accumulation in skeletal muscle and liver. ;
Allocation: Randomized, Endpoint Classification: Efficacy Study, Intervention Model: Parallel Assignment, Masking: Double Blind (Subject, Caregiver, Investigator, Outcomes Assessor), Primary Purpose: Treatment
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