Because sweet potatoes are rich in vitamins, and belong to the crude fiber food. The eggs are rich in protein, so if you mix and match the two, you'll be prone to stomach pains.

Eggs are rich in a certain amount of high-quality proteins, and eggs in the high-quality proteins, in order to be well utilized by the body, need a certain amount of non-protein calories. Sweet potatoes are rich in carbohydrates, 1g of carbohydrates can produce 4kcal, so it can provide a certain amount of non-protein calories.

Sweet potato buying tips

1, good shape, skin intact: need to pay attention to buy sweet potatoes when you can choose a good shape, and skin without scars of sweet potatoes. Sweet potato skin smooth sweet potato skin shiny, on behalf of the sweet potato is very fresh.

2, according to the taste to choose: sweet potatoes are generally divided into yellow-fleshed sweet potatoes and white-fleshed sweet potatoes, the taste of sweet potatoes with different flesh will have a slight difference. White-fleshed sweet potatoes are steamed and white inside, with a sweet and sticky texture.

3. Buy fresh sweet potatoes: If the surface of sweet potatoes is uneven and sprouted, it means that the sweet potatoes have been stored for a long time.

The above content reference? Baidu Encyclopedia - Sweet Potato