Not that simple. They love carbs. Yet, not just any simple carb like starches or sugars but a specific, complex carbohydrate: cellulose, i.e. fiber, which they break down into sugars that our body can use.

So only brown rice, whole wheat bread, and the skin of potatoes. Potatoes are actually bad for your gut because they are so high in starches.

Otherwise, they love nuts and greens. Ya know, other foods that are high in fiber content.