Sweet snacks that pack nutrition. If you're diabetic, sugar can be counted just like any other carbohydrate, but since most foods containing sugar—think cream-filled cookies—are usually low in other nutrients, it's best to limit high-sugar snacks and go for mini meals that give you more nutritional "bang for your buck." But who says you can't have sweet and nutritious? Try this: combine 1/2 cup low-fat vanilla yogurt with half a sliced banana and 1/4 cup blueberries. Don't like blueberries as much as you like blackberries? That's OK, substitute. Either way you cut it, this snack packs calcium, probiotics, potassium, antioxidant power and only 2 carbohydrate servings.