How much weight gain is healthy for children and teens?

Between the ages of two and five years, the average child grows about 2 1/2 inches and gains four to five pounds each year.

During the grade school years, kids grow at a steady pace. Each year they get about two inches taller and gain anywhere from 5 to 10 pounds.

During preadolescence, most children, especially girls, gain weight primarily in the form of body fat. Preadolescent weight gain often occurs between the ages of 9 and 11 in girls and 10 and 12 in boys. This weight gain is normal and necessary to help them prepare for the rapid and intense growth spurt that will occur in adolescence.

During the adolescent growth spurt, many kids lose their “extra” body fat and grow into their weight. During this time, adolescents achieve the final 15 to 20 percent of their adult height. The age range in which kids reach this growth spurt varies greatly.