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.
Potatoes pack a big carb punch, as a 1/2- cup serving of baked sweet or white potato has around 21 grams of carbs. When you count carbs on a low-carb diet, you might be more interested in net carbs, which are the digestible carbs. Net carbs are calculated by subtracting the fiber from the total carb count.