Is sweet potato a staple food?

Sweet potato is not a staple food, but sweet potato is rich in nutrients can replace part of the staple food.
Sweet potatoes are rich in nutritional value, every 100 grams of sweet potatoes about 15.3 grams of carbohydrates, 18 mg of calcium, 88 mg of potassium and so on. It can supplement the daily required nutrition.
At present, there are four main staple foods in our country, respectively, rice, wheat, corn, potatoes, sweet potatoes are not among them, not counted as staple food. However, the starch content in sweet potatoes is relatively high, and the starch content varies from 18% to 28%, so sweet potatoes can be eaten as a staple food.
Eating too much sweet potato is prone to acid reflux, regurgitation and other gastrointestinal symptoms. And sweet potato sugar is relatively high, too much consumption is also easy to excessive energy intake. Therefore, usually eat sweet potatoes to control the amount, do not recommend eating too much sweet potatoes at once.