He is 2.2 and has a pretty healthy diet. If he has what I would deem to be a reasonable amount of fruit or veg, his bowels appear to work overtime. Is it normal for a child of this age to have such a fast working gut? He had about 5 cherry tomatoes for lunch and they appeared at supper and gave him terribly acidic poo . Generally his poo is not formed, he is a good weight though, is growing well and otherwise generally in rude health.