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.
Carbohydrates in Potatoes. A 100 g serving of baked sweet potato, or approximately 1/2 cup, contains 21 g of carbohydrates. Of those, 3 g are fiber and 6 g are sugar â the rest of the carbohydrates come from starches. A 100 g serving of baked white potato also contains 21 g of carbohydrates, with 2 g of fiber and 1 g of sugar. Although not all starches are broken down at the same rate, the types found in potatoes break down and hit the bloodstream quickly.