I remember a girl in high school that was 5'8" and about 275 lbs. At recess and lunch, all she had was a diet Mountain Dew. I remember wondering how many calories she'd have to have during breakfast and dinner to maintain that kind of weight on a teenager's metabolism.
"I remember wondering how many calories she'd have to have during breakfast and dinner to maintain that kind of weight on a teenager's metabolism."
My father's side of the family are mostly obese. The answer is (like the article said) that they generally have lower caloric intake. I ate more than my father (300 pounds, give or take) starting in the third grade, and at age 18 (when I was 6' tall and 160 pounds) doubled his intake.