Other causes of stomach rumbles: 1  Incomplete digestion of food can lead to excess gas in the intestine. 2  Louder rumbles may occur when one is hungry. 3  Stomach rumbles can form further along the gastrointestinal system when air is swallowed while talking, eating, and drinking.
One cup of raw yams contains about 158 calories, whereas 1 cup of raw sweet potatoes contains about 114 calories. Therefore, yams contain about 44 more calories than sweet potatoes for an equal portion.
A baked, skin-on 8-ounce sweet potato offers 45 grams of carbohydrates. Carbohydrates break down into simple sugars, which your body uses as its preferred source of fuel. Consuming adequate carbs allows your body to preserve your dietary protein for other uses, rather than using protein for fuel.