Harriett: Not sure how acidic these are (never had a problem myself). So far, he gets sweet potatoes, brocolli, carrots, green beans, sweet peas,butternut squash, apples, pears, bananas, strawberries, mango, peaches, papaya, blackberries. What do you think? He did fight for straight bananas. Cried while eating. My husband gets a burning in his throat after bananas (none of the other kids do). When I mix them with strawberries, he does fine though. Ever heard of this?