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Abstract The purpose of this study was to assess body composition, weight preferences, and adequacy of dietary energy and macronutrient (carbohydrate, protein, and fat) intake of elite college baseball players (N = 15) during a summer competitive playing season. Percent body fat was estimated from skinfold measurement, a survey assessed weight preferences, and a 3-day dietary intake record assessed home game day dietary intake. Outcomes of this study indicate: (a) participants had low to moderate body fat percentage, ranging 7-16%, (b) desired goal playing weight was 104[+ or -]6% (M [+ or -] SD) of current weight, 83% of players wanted more muscle mass, and (c) the dietary intake of baseball players needs improvement in an effort to optimise health and physical performance. Mean carbohydrate intake of 4.2 [+ or -] 0.8 gm/kg and daily meal frequency of 3.7[+ or -]0.7 were inadequate, mean fat intake of 1.4[+ or -]0.3 gm/kg was excessive. Furthermore, although mean dietary protein intake of 1.7[+ or -]0.6 gm/kg was adequate to meet the needs of competitive baseball athletes, 40% of athletes unnecessarily supplemented with protein. Mean energy intake of 36[+ or -]6 gm/kg was adequate to meet energy demands of a competitive baseball summer season. Findings from this study have practical application for professionals working with baseball athletes.