1 can reduce the incidence of colorectal cancer, because sweet potato is rich in dietary fiber, which is very important for maintaining intestinal flora and microecology. It can also reduce the time and area of harmful substances in the intestine contacting the intestinal wall through the protection of dietary fiber in sweet potatoes, which is very obvious for reducing the incidence of colorectal cancer.

2, can prevent obesity, because eating sweet potatoes has obvious satiety, can avoid excessive energy intake, and the benefits in preventing obesity are also very obvious.

3, the disadvantage of eating sweet potatoes is that it may cause a lot of gastric acid secretion, causing gastric acid reflux and heartburn.