Sweet potato is a very common crop in life, its rhizome is tuberous, rich in starch and other ingredients, mainly used for food or starch extraction. Sweet potato is a kind of roughage.

Sweet potatoes have been used by nutritionists as a kind of medicinal food, nutritionally balanced food, its calories are only one-third of those produced by the same weight of rice, and it is almost free of fat and cholesterol. Eating sweet potatoes is good for human health, and has a certain weight loss effect. But don't eat too much sweet potato to avoid heartburn, acid reflux or bloating and other abdominal discomfort.

The most anti-cancer nutrients in the diet are beta-carotene (vitamin A precursor), vitamin C and folic acid, and all three are relatively abundant in sweet potatoes. A small sweet potato (about 2 taels) can provide two times the amount of vitamin A, one-third of the daily requirement of vitamin C and about 50 micrograms of folic acid; the content of dietary fiber is higher than that of a bowl of oatmeal. β-carotene and vitamin C antioxidant effect helps to resist oxidative stress on the genetic material deoxyribonucleic acid (DNA) damage, and plays a certain anticancer role. It has a certain anticancer effect.

Eating sweet potatoes helps maintain normal folate levels in the body, and low folate levels in the body increase the risk of cancer. Sweet potatoes in the high content of dietary fiber to promote gastrointestinal motility, prevention of constipation and colorectal cancer.

Sweet potatoes are rich in potassium, beta-carotene, folic acid, vitamin C and vitamin B6, all of which help prevent cardiovascular disease. Potassium helps the body's cellular fluid and electrolyte balance and maintains normal blood pressure and heart function.