My allergist had my try cooked bananas because the heat destroys whatever it is that causes the allergy. It worked, and I can eat cooked bananas. Its amazing how much sugar comes out of a banana when you fry or bake it. I don't know if this solution crosses over to the other related foods or not. I'm not sure how appealing cooked avocado would be. I used to love sliced avocado with a little salt.