My ds is 11 months old and has recently seemed to develop an intolerance for fruit. Processed fruit is OK, but anytime we give him slices of apples, pears or grapes he throws everything up an hour or two later. We tried bananas and blueberries today and they seemed OK, but it was very small amounts. This has only started in the past month or so, until then he loved fruit and had it at almost every meal, and since he won't eat much from a spoon it's usually been raw. I have read a little bit about fructose intolerance, but it seems like that always involves diarrhea, which my son hasn't had. We are seeing a pediatrician because his weight gain has slowed (this was before the throwing up started). At over 10 months he was still only 16 pounds. He has been on a high fat/high calorie diet to see if it helps, but I don't think he's really gaining any weight. We are seeing the dr. again next week, but I was wondering if anyone has experienced anything similar. Combined with the fact that he's gained hardly any weight since he was 4 months old, I'm afraid it could be something serious.