The main component of sweet potato is starch. If it is used as a staple food for a long time, it is harmless to the body, but attention should be paid to supplementing various trace elements to maintain a nutritional balance.

Sweet potato tastes sweet and is rich in dietary fiber. Regular consumption can prevent constipation and treat hemorrhoids. The vitamins and amino acids contained in it have a special protective effect on the mucosa of human organs, can maintain the elasticity of blood vessels, prevent the connective tissue in liver and kidney from shrinking, and can provide a lot of calories. It is an ideal diet food with a special function of preventing sugar from transforming into fat. Eating sweet potatoes often can also prevent cancer.