What is the 2,000 calorie a day intake based on?
An Active 8 or 9 year old male, a moderately active 11 year old male, as well as sedentary 13 and 14 year old males, should be taking in a 2000 calorie a day diet. For females, active 10 and 11 year olds, moderately active 12-18 year olds and sedentary 19-25 year olds should be on a 2000 calorie a day diet. For other activity levels, ages and sexes, rates are given on the chart in the link. Sources: http://mypyramid.gov/downloads/MyPyramid_Calorie_Levels.