Have you seen the list Dr. Mercola has of the fructose content in fruits? You can use it to pick fruits wisely, say, cantaloupe or raspberries instead of mangoes and grapes. I was shocked how much fructose mangoes have: 16.2 grams in HALF a mango. I wonder if that's why my mother-in-law says not to eat them on an empty stomach. Whereas a cup of raspberries (my FAV!) has only 3 grams.