Early dieting, ironically, is one of the causes of early obesity—which explains why Americans are simultaneously so diet-conscious and yet so fat. The younger a daughter is when she first began dieting, the higher her current weight is now. The Glamour survey showed that when women started dieting in their teen years, their average adult weight was 146 pounds. But when they started in childhood, their average adult weight was 163 pounds.66 These women would be healthier and lighter had they never dieted at all.

