Cancer is a disease that has not been completely overcome by humans. However, many people believe that some ingredients in life have anti-cancer effects. As long as you consciously increase your intake, the chance of cancer will be greatly increased. cut back. So, is this statement correct?

　　Scientists of the Institute of Cancer Prevention conducted a follow-up survey on the dietary habits of 260,000 people and found that certain vegetables did have a certain anti-cancer effect, and 20 kinds of high-to-low were significantly inhibited tumor cells The effect of vegetables, in this ranking, sweet potatoes are "one-stop".

　　Sweet potatoes are rich in starch, carotene, potassium, iron and more than 10 trace elements, which can protect the structural integrity of human epithelial cells, inhibit viral activity, and block the production of nitrosamines in the gastrointestinal tract , Eliminate the toxic effects caused by mercury, cadmium, arsenic in food or the environment, and block the carcinogenic process of toxic metals. Therefore, sweet potatoes are called the most balanced health food.

　　Ming Dynasty medical scientist Li Shizhen said: "People in the sea live longer and eat sweet potatoes." Although eating more sweet potatoes is good for your health, eating sweet potatoes also has many taboos. In order to help you eat sweet potatoes more healthily, here are the following points for your attention.

　　 1. Roasted sweet potatoes in winter cannot be eaten with skin

　　The roasted sweet potatoes are sweet and delicious, and some even have "sugar oil". This sweet potato is very popular with everyone. Therefore, many people like to eat it with their skins together. However, this method of eating together with the skin is very unhealthy, because the sweet potato skin contains more alkaloids, excessive consumption will cause gastrointestinal discomfort. Especially the sweet potato skin with black spots is inedible, and in severe cases it can even cause poisoning.

　　Second, you must pay attention to the time and method of eating sweet potatoes

　　 1. Sweet potatoes should not be eaten raw: because the cell membrane of starch in raw sweet potatoes is not destroyed by high temperature, it is difficult to digest in the human body; at the same time When cooking sweet potatoes, the cooking time should be properly extended, which is more conducive to the destruction of the "gasification enzymes" contained in the sweet potatoes, after eating, there will be no bloating, heartburn, hiccups, nausea, gassing, etc. Feeling sick.

　　2. It is best to eat sweet potatoes: sweet potatoes and rice noodles are eaten together, which can play a complementary role in protein; at the same time, with pickles or fresh radishes, it is helpful to reduce the production of stomach acid.

　　 3. Sweet potatoes are best eaten at noon: This is because after we eat sweet potatoes, the calcium contained in them needs to be absorbed in the human body after 4 to 5 hours, and the sunlight in the afternoon can just promote Calcium absorption. Therefore, when eating sweet potatoes at lunch, calcium can be fully absorbed before dinner, and will not affect the absorption of calcium in other foods during dinner.