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.
There are 180 calories in 1 cup of Sweet Potato (Without Salt, Baked In Skin, Cooked). Calorie breakdown: 1% fat, 90% carbs, 9% protein. Other Common Serving Sizes: