quickstats: age adjusted kilocalorie and macronutrient intake* among adults aged >=20 years, by sex national health and nutrition examination survey, united states, 2007 2008 /

During 2007--2008,the average daily intake of kilocalories was 2504 kilocalories for men and 1771 kilocalories for women. Women consumed more energy from carbohydrates than men (50.5% of total daily intake of kilocalories, compared with 47.9% for men). A slight difference was observed in the percentage of kilocalories from protein (15.5% for women and 15.9% for men), and virtually no difference was observed in the percentage of kilocalories from stout (33.6% for men and 33.5% for women).

Source: cdc.gov