1. of, involving, or being in proportion. 2. (Mathematics) maths having or related by a constant ratio. n. (Mathematics) maths an unknown term in a proportion: in a/b = c/x, x is the fourth proportional.
Recommended daily calorie intakes in the US are 2,700 for men and 2,200 for women. Eating a big breakfast could help with weight reduction and maintenance. When food is eaten may matter as much as what and how many calories are eaten.
Self-reported average energy intake of 2,640 calories for men and 1,785 calories per day for women is within current USDA recommendations. However, since the majority of men and women in the U.S. are overweight or obese, many are eating more calories than they require.