Anonymous wrote:If the parents are both short, the kids are not likely to grow taller by much. But this sounds like something to ask your doctor.
+1 If they are extremely short they might qualify for hormone growth therapy but that's about it.
Height is genetic. FWIW, my son was very picky, never had much of an appetite, was average to a little below average until mid HS and now at 20 is 6'2". Taller than all the men in the family. Only thing we can figure is grandma was tall for a woman (5'8") so maybe he got it from there.