Loss of total body fat over 16 wk (8 wk eucaloric followed by 8 wk 1000-kcal/d energy deficit) in overweight/obese AA and EA adults consuming a lower-CHO or lower-fat diet. Values are means ± SEMs. EA lower-fat diet arm, n = 14; AA lower-fat arm, n = 14; EA lower-CHO arm, n = 18, AA lower-CHO arm, n = 13. Different lowercase letters indicate significant differences between groups. Within AAs, those who consumed the lower-CHO diet lost more fat than did those consuming the lower-fat diet (P < 0.05). Within the lower-fat diet groups, the difference between ethnic groups in fat loss was significant at P = 0.05. AA, African-American; CHO, carbohydrate; EA, European-American.