1, sweet potato is our common sweet potato, also known as sweet potato, sweet potato, sweet potato, etc. Sweet potato is an annual plant of convolvulaceae, which is a kind of healthy food for both medicine and food. Sweet potato contains dietary fiber, carotene, vitamins A, B, C, E, potassium, iron, copper, selenium, calcium and other trace elements 10, which has high nutritional value and is called the most balanced health food by nutritionists.

2. It is often seen in the market that sweet potatoes have two different colors of white heart and red heart, with many fibrous roots on the surface and wiredrawn mucus on the fracture, which is a bit like yam (also called yam in some places). However, the physical properties and taste of Dioscorea opposita are similar to those of sweet potato, but the shape is different.