(A–B) Differences in fat oxidation during the hyperinsulinemic euglycemic clamp between African–American and non-Hispanic white women after 7 days of a eucaloric low-fat diet (30%) (A) OR after 7 days of a eucaloric high-fat diet (50%) (B). (A–B) Differences in fat oxidation during the hyperinsulinemic euglycemic clamp between African–American and non-Hispanic white women after 7 days of a eucaloric low-fat diet (30%) (A) OR after 7 days of a eucaloric high-fat diet (50%) (B). Open circles, solid lines=African–American women. Open squares, dotted lines=non-Hispanic white women. Natalia M Branis et al. BMJ Open Diab Res Care 2015;3:e000100 ©2015 by American Diabetes Association