V.B.
Bananas and apples can constipate, so try some other fruits. If he's only 6 months old, I don't know how much solid food he's eating yet, but also try to steer clear of the apple juice. Breastfed babies rarely get constipated, but with the introduction of solids, he may not be digesting everything very well yet. I have heard that the Karo syrup added to a bottle can get things moving in kids that age, so you may want to give that a shot (my pediatrician told me it works for younger kids....I had tried it on my daughter who was about 20 months old at the time and she said she was too old for that to work).