Substances in Sweet Potatoes Effectively Prevent Cancer
It is well-known that sweet potatoes are very nutritious. More remarkably, in a recent ranking of the top 20 anti-cancer vegetables released by the Japanese National Cancer Research Center, sweet potatoes took the top spot.
Cancer cells originate from the body's epithelial cells. Sweet potatoes are rich in starch, carotene, and more than ten trace elements such as potassium and iron. These components help protect the structural integrity of human epithelial cells, inhibit viral activity, block the formation of nitrosamines in the gastrointestinal tract, and eliminate toxic effects caused by mercury, cadmium, arsenic, and other toxic substances from food or the environment, thereby interrupting the carcinogenic process of toxic metals. Sweet potatoes are hailed by experts as the most nutritionally balanced health food.
Moreover, sweet potatoes contain a unique substance called dehydroepiandrosterone (DHEA), a steroid hormone similar to androgen secreted by the adrenal gland, which can both prevent cancer and promote longevity.
Roasted Sweet Potatoes
Don't Eat Roasted Sweet Potatoes with the Skin in Winter
Currently, hot roasted sweet potatoes are fragrant, sweet, and delicious, some even oozing "syrup oil." The charred skin of the sweet potato is particularly popular, and many people eat it along with the skin.
Experts advise that it's best not to eat roasted sweet potatoes with the skin, as the skin contains more alkaloids, and excessive consumption can cause gastrointestinal discomfort. The skin of sweet potatoes with black spots should especially not be eaten, as it can cause poisoning.
Pay Attention to the Time and Method of Eating Sweet Potatoes
1. Sweet Potatoes Should Not Be Eaten Raw
Because the cell membranes of the starch in raw sweet potatoes are not broken down by high temperatures, they are difficult to digest in the human body. At the same time, when boiling sweet potatoes, the steaming and cooking time should be appropriately extended to destroy the "gasification enzyme" contained in them. This prevents discomfort such as bloating, heartburn, belching, nausea, and flatulence after eating.
2. It's Better to Eat Sweet Potatoes with Other Foods
If sweet potatoes are eaten with rice or flour, they can have a complementary effect on protein. If paired with pickles or fresh radishes at the same time, it can also reduce the production of stomach acid.
3. It's Best to Eat Sweet Potatoes at Noon
This is because the calcium contained in sweet potatoes takes 4 to 5 hours to be absorbed by the body, and the sunlight exposure in the afternoon can promote calcium absorption. In this case, eating sweet potatoes at lunch allows the calcium to be fully absorbed before dinner, without affecting the absorption of calcium from other foods consumed at dinner.
Roast potatoes