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.
Men aged 19-51 years of age require even more, anywhere between 2,200-2,400 calories per day. People that lead more active lifestyles or those who want to gain weight require more calories. For children aged between 2 and 18 years, calorie intake ranges from anywhere between 1000-2200 per day. A full list of daily calorie needs can be found at ChooseMyPlate.gov.