#AskTheExpert My son has lost 800 gms in his first three weeks. should I be concerned? please suggest ways to increase weight.

A. Yes, at first. Babies are born with some extra fluid, so it's normal for them to drop a few ounces when they lose that fluid in the first few days of life. A healthy newborn is expected to lose 7% to 10% of the birth weight, but should regain that weight within the first 2 weeks or so after birth.