W.B.
hi J. i first say i wouldnt be to concerned about the weight if he is healthy. i have 4 children the 2nd son is average height but he only weighs around 40 pounds at 6 years old. he eats very good all the time.
but if you do want to try to have him gain some weight remember that kids need the fat in butter, dips, sour cream and dressings for salad. not like adults who have to avoid them at all costs or they will gain weight just looking at them. also i would see if you could have them drink like the carnation intant breakfast and things like that.thats what they told me to have my son drink when he was younger (2 and 3)also twice a day. when i was pregnant with my 2nd child i had bad morning sickness up until i was 7 months along and my dr told me to drink the carnation or weight watchers or any of them because they have alot of vitamins in there that you need wether pregnant or dieting or a child. if you do have trouble getting them to eat veggies chop them up really small put them in meatloaf, or meatballs for spaghetti or even in hamburger patties if they are small enough they will never even notice them. hope this helps and gives you some ideas. W.