Effect of alcohol consumption on total body weight (A), lean body mass (B), fat mass (C), and gastrocnemius mass (D) of adult and aged female rats. Whole-body fat mass and lean body mass were determined in vivo using 1H-NMR and normalized to the body weight (BW) of each rat. Values are expressed as means ± SE; n = 8 or 9 rats per group. a,b,cValues with different letters are statistically different (P < 0.05), while those values with the same letter are not statistically different.