background: during the complementary feeding period, infants shift from a daily protein intake (pi) of 1 g/kg body wt to an intake 3-4 times as high. a high pi probably has both endocrine and physiologic effects and may increase the risk of obesity.
objective: we examined the associations between pi in infancy and body size and composition in late childhood.
design: we conducted an observational cohort study of 142 danish healthy term infants (63 boys) born during 1987-1988. at 9 mo of age, diet, weight, length, skinfold thicknesses, insulin-like growth factor i, and serum urea nitrogen were determined. at 10 y of age, 105 children (51 boys) participated in a follow-up study. diet, weight, height, skinfold thicknesses, percentage of body fat (dual-energy x-ray absorptiometry), insulin-like growth factor i, and serum urea nitrogen were determined.......