Americans consumed an estimated 2,544 calories per person per day in 2010, up from 2,039 calories in 1970. Grains (mainly refined grains) and added fats and oils contributed 398 calories to this 505-calorie increase. Vegetables were the only food group that contributed fewer calories in 2010 (4 calories less than in 1970). In 1970, the meat, eggs, and nuts group provided more daily calories than any other food group.
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