What kinds of food will not add any fat to your body?

Answer 1

All food contains calories, even foods that are "healthy" and don't contain very many calories, (like veggies) still have calories and therefore are still able to be stored as fat in your body if you don't burn them off. 100 calories of red pepper will make you gain the same amount of weight as 100 calories of butter, for example. (However, veggies are packed with nutrients, while butter is not, so they're still healthier.)

While you digest your food, all the fat/sugars/protein are broken down into simple pieces and used for energy, growth and repair in your body. If some is left over, it is converted to fat and stored. It's as simple as that. So, to answer your question, potentially any food can be stored as fat in your body.