Question: are cocoa pebbles bad for you?
Answer: Fruity Pebbles and Cocoa Pebbles Fruity Pebbles and Cocoa Pebbles are tied at the eighth spot on this list of the worst cereals for you. You might prefer one over the other, but both of these cereals are not the healthiest. They contain 9 and 10 grams of sugar per serving, respectively.