Sweet potatoes hollowed out are generally not recommended for consumption. Sweet potatoes are rich in sugar, protein and so on. Take red sweet potato as an example, every 100 grams of sweet potato contains 57 calories, of which 15.3 grams of carbohydrates, 0.7 grams of protein, 0.2 grams of fat, 2.2 grams of dietary fiber, 125 micrograms of vitamin A, vitamin C 4 milligrams, 88 milligrams of potassium, 18 milligrams of calcium. Moderate consumption of sweet potatoes can promote intestinal peristalsis, while providing the body with carbohydrates, can be used as a staple food to replace part of the traditional grain. In general, the normal sweet potato is solid, and sweet potato hollow because the storage time is too long, resulting in the sweet potato consumed their own nutrients, resulting in the internal hollow situation, this sweet potato has no nutritional value, so it is not recommended to eat. At the same time placed too long easy to mold, sometimes difficult to identify through the eyes. Diabetic patients are forbidden to eat a lot of sweet potatoes, sweet potatoes contain high sugar, diabetic patients may lead to blood sugar out of control after eating a lot. Sweet potatoes need to be eaten in moderation, avoid overeating, so as not to cause adverse reactions.