Trends in intake of energy and macronutrients in adults from 1999-2000 through 2007-2008.

Data from the National Health and Nutrition Examination Survey In 2007-2008 the average energy intake for men was 2,504 kilocalories (kcals) and for women it was 1,771 kcals. The average carbohydrate intake was 47.9% of total kilocalories (% kcals) for men and 50.5% kcals for women; average protein intake was 15.9% kcals for men and 15.5% kcals for women; average total fat intake was 33.6% kcals for men and 33.5% kcals for women; and average saturated fat intake was 11.0% kcals for men and 11.1% kcals for women. Energy intake appeared relatively stable over the 10-year period from 1999-2008; there were no statistically significant linear increases or decreases in total energy intake. There were statistically significant trends in intake of the macronutrients: average carbohydrate intake decreased and average protein intake increased in both men and women.