Seasonality of energy and macronutrient intake of healthy volunteers (n=76) from the metropolitan Washington, DC area. A) No significant difference in energy intake (kcals, adjusted for age, sex, BMI, and race) between seasons (winter, 2248.3±638.0; spring, 2110.2±627.2; summer, 2301.0±642.5; fall, 2200.7±581.3, p=0.236). Data shown are means ± standard deviation. B) No significant difference in percent of energy from macronutrients (adjusted for age, sex, BMI, and race). Data shown are means with all p>0.05. Winter (n=54), spring (n=60), summer (n=60), fall (n=54).