If you need to prepare meals the next day, it is recommended to choose vegetables such as roots, cauliflowers and melons, whose nitrite content is lower than that of leafy vegetables. The edible part of sweet potato is the rhizome part, which can be eaten overnight. Root vegetables such as sweet potato contain a lot of starch, which can be processed into vermicelli, but alum is often added in the production process. Excessive consumption will lead to aluminum accumulation in the body, which is not good for the body.

Potato chips are rich in special vitamin C, vitamin E and potassium. Among them, vitamin C can obviously enhance the body's resistance to many viruses such as colds; Vitamin E can promote people's sexual desire and delay aging. Potassium can effectively prevent hypertension, stroke and cardiovascular diseases. Potato block contains a kind of collagen mucin, which can keep the elasticity of human arterial wall and prevent atherosclerosis.

Extended data

Safe eating rules of overnight sweet potato;

1, completely cool and put it directly in the refrigerator.

If the hot food is directly placed in a low temperature environment, the hot air of the food will lead to the condensation of water vapor, promote the growth of mold, and cause the food in the refrigerator to be moldy. Even in winter, you can't leave food outside for a long time. The refrigerator can not only refrigerate food, but also inhibit bacteria.

2. Different leftovers should be stored separately.

Different kinds of leftovers must be stored separately to prevent cross-infection of bacteria. In addition, clean containers should be selected for storage, such as fresh-keeping bags or plastic wrap boxes.

3. Return to the pot to cook before eating.

After being stored in the refrigerator, it should be fully heated before eating, which can effectively kill bacteria in food and reduce the impact on the body.

4. Eat in a couple of days.

The content of nitrite will reach more than 30% when the leftovers are left at room temperature for more than eight hours. Even if you put it in the refrigerator, it can't be sterilized directly, and it will still breed bacteria, so the leftover food must be eaten within two days and directly thrown out after three days.

People's Daily Online-Overnight dishes are harmful, so don't eat these overnight dishes again.

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