#AskTheExpert hi. my boy is 16months old...I really want to know how to gain his weight..kindly suggest

A. hi dear When growing kids don't gain weight as they should, it is called "failure to thrive." Failure to thrive is not a disease or disorder itself. Rather, it's a sign that a child is undernourished. In general, kids who fail to thrive are not getting enough calories to grow and gain weight in a healthy way.