My 2 1/2 year old son for last 2 months have been having bouts of Diarrhoea last from a couple of days to a week. There seems to be no specific cause, he is still well and eating. Have started testing foods but have still found no real cause. The only thing we have noticed is if he has some fruit every day then gets the runs if we give him no fruit for a couple of days it firms up. Could he have an allergy of some sort to fruit?
Generally, there’s no such thing as an allergy to fruit but the fibre and natural fruit sugars known as fructose just seem to hurry through the child’s gut without being absorbed. Experiment with various fruits and vegetables, bananas may be fine but fruits such as oranges and mandarins create problems.
You may benefit from speaking with your GP or a dietician to see what other alternatives could work or what may be causing it.