11 Healthy Snack Foods to Keep You Full Slideshow

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1. Fresh Fruit

Some fruits that O'Neal suggests are apples (with an estimated glycemic load (EGL) of 3), peaches (EGL: 5), oranges (EGL: 6), pears (EGL: 5), mangoes (EGL: 8), and cherries (EGL: 7). Although some of these fruits contain quite a bit of sugar in one serving (too much of anything, even "natural" sugar, isn't so great for blood sugar levels), they also have the fiber to slow its breakdown and release into the bloodstream. When possible, eating fruit with the skin is even better since it contains additional fiber.