 [ Symptoms ] what should my son eat when it hurts to eat he is dangerously underweight my son has gerd with abdominal pain and gets nausea when he eats he is way underweight 6 2 110lbs he needs to maintain his weight or better he looks anorexic ensure and like products seem to make it worse  possible lactose intolerance runs in the family he will only eat soda crackers and cranberry juice he is seeing a doctor for possible peptic ulcer and is taking prilosec twice a day to reduce stomach acid [ Disease ] i had a close friend who had same problem with her son who at time was 3 years old now 5 years old i told her to give him lactose and glucotin free foods stop all daily vitamins he might be taking ped lite that first thing in the morning small 4oz to start with decrease all spices in his food to almost none no fried food at all if you go to your grocery market get the gerber graduates for him but do not let him see it cause he is a big boy not a baby and will not eat if he sees the baby food jar best of luck to you and your son i had to raise my friends son for almost 2 years cause she could not handle him being in pain with or without food so me being in medical field and having 5 medical degree is did not mind he is all better now and back with his momma now