Sweet potato is very nutritious. What is even more commendable, however, is that in the list of 20 kinds of anti-cancer vegetables recently released by the National Cancer Research Center of Japan, sweet potato also won the championship in one fell swoop.
Cancer cells come from human epithelial cells, and sweet potato is rich in starch, carotene, potassium, iron and other trace elements 10, which can protect the structural integrity of human epithelial cells, inhibit virus activity, block the production of nitrosamines in gastrointestinal tract, eliminate the toxic effects of mercury, cadmium and arsenic in food or environment, and block the carcinogenic process of toxic metals. Sweet potato is called the most balanced healthy food by experts. Dehydroepiandrosterone peculiar to sweet potato is a steroid hormone secreted by adrenal gland, which is similar to androgen and can prevent cancer and prolong life.
Baked sweet potatoes can't be eaten with skin.
Hot baked sweet potatoes are sweet and delicious, and some are roasted to give off "sugar oil". Sweet potato skin is burnt and more popular. Many people eat the skin together. Experts say that it is best not to eat baked sweet potatoes even if they are skinned, because sweet potato skins contain more alkaloids, and eating too much will lead to gastrointestinal discomfort. Especially the sweet potato skin with black spots is inedible and can cause poisoning.
You must pay attention to the time and method of eating sweet potatoes.
1, sweet potato should not be eaten raw.
Because the cell membrane of starch in raw sweet potato is not destroyed by high temperature, it is difficult to digest in human body; At the same time, when cooking sweet potatoes, the cooking time should be appropriately extended, so that the "gasification enzyme" contained in sweet potatoes will be destroyed, and there will be no discomfort such as bloating, heartburn, burping, nausea and exhaust after eating.
2. Eat sweet potatoes together
If sweet potatoes and rice noodles are eaten together, they can also play a complementary role in protein; If eaten with pickles or fresh radish at the same time, it can reduce the production of gastric 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 for 4 to 5 hours, and the afternoon sunshine can just promote the absorption of calcium. In this case, eating sweet potatoes for lunch can completely absorb calcium before dinner, and it will not affect the absorption of calcium in other foods at dinner.
Eat sweet potatoes to meet three conditions.
The first condition is to try not to eat on an empty stomach. Eating sweet potato on an empty stomach has a great chance of acid reflux and heartburn, because sweet potato itself contains relatively high carbohydrates and has a certain sweetness, which increases the possibility of reflux.
The second is that it is best not to eat more than three or two sweet potatoes a day. And if you have acid reflux, you can eat three or two separately.
Third, don't eat sweet potatoes with things that are too sweet. Sweet potato itself is sweet. If you eat sweets together at this time, the possibility of reflux will double, so don't eat sweet potatoes with things that are too sweet.
Who should not eat sweet potatoes?
Diarrhea patients and diabetics should not eat sweet potatoes. People with stomach problems should not eat too much to avoid bloating.