Could diarrhea and cramps be due to allergy towards milk products?
Patient: My grandson ate some sugar free pudding yesterday and within hours was cramping and suffering from diaharia.  Could he be allergic to milk products?  He couldn't take regular milk as a baby, but soy.  My grandson is 2 yrs old and weigh 27 lbs, otherwise he is healthy.  Thanks Doctor: Hi, thanks for using healthcare magicThe reaction can be due to : (1) gastroenteritis - infection induced after using the pudding. This would be more likely if other persons who also used it, were sick as well(2)intolerance or an allergic reaction to the foodIf he uses other milk products with no problem then it may be some other aspect of the pudding that caused the reaction.If no other persons who used the same pudding are unwell then it is unlikely infection and you would need to consider the other option.It is possible to assess for allergies by testing at your doctor's office.I hope this helps