Participants in the study were all initially overweight and consisted of 18 white and 19 African American women who ranged in age from 21 to 46 years. They consumed a clinically controlled diet that provided 800 kcal per day until each subject had lost >10 kg and reached a normal target weight range. The participants' body and fat composition, glucose tolerance, and blood lipids were assessed at the beginning and end of the research. The volume of visceral adipose tissue (VAT) was initially much larger in the white women than in the African Americans, and white women lost roughly twice as much VAT as African Americans in the course of the study. Conversely, African American women lost more subcutaneous fat in the diet phase than white women. The post-diet improvement in metabolic profilesfasting insulin levels, concentrations of total cholesterol, HDL cholesterol, and LDL cholesterolwas similar in both races. The only race-related difference was in concentrations of triacylglycerols, which were initially higher in white women than in African American women and declined at a similar rate. The authors suggest that ethnicity-race may have an effect on triacylglycerol levels that is independent of obesity status.
The differing amounts of visceral weight loss in the two racial
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Contact: Elizabeth Horowitz
horowitz@ascn.faseb.org
310-530-7038
American Journal of Clinical Nutrition
24-Oct-2002