Our usual staple food sources are mainly rice and wheat. After grinding, they lose a lot of B vitamins, minerals and dietary fiber, and their nutrition is seriously lost. If potatoes are the staple food, this problem can be improved.
Because potatoes are rich in dietary fiber, vitamins A, B, C and minerals, high-quality starch contains 16.5%, and there are a lot of lignin, which has high nutritional value for human body.
More importantly, the loss of nutrients in the processing of potatoes will not be great. Rich starch can provide calories needed by human body and enhance satiety. Known as the "second bread", there are three nutrients that are not found in staple foods-carotene.
2. Disadvantages of replacing staple food with potatoes
Potatoes are different from corn, rice and wheat. The latter three are granular and easy to dehydrate, thus prolonging the shelf life. Potatoes are large and difficult to dehydrate. If they are preserved in adulthood, they will go bad easily.
The "deterioration" here is mildew on the one hand and germination on the other. Not to mention mildew. If potatoes germinate, they will produce a lot of solanine, which is a toxic substance. Therefore, if potatoes are not properly preserved, they are easy to waste.
In terms of nutrients, potatoes are no problem as a staple food, but the storage cost is high. Therefore, as an ordinary person, if you can easily buy fresh potatoes, you can take them as the staple food.
Special reminder:
1, the high glycemic index of potatoes is not conducive to regulating blood sugar, so diabetics should not eat more potatoes.
2. Potatoes contain some toxic alkaloids. After the potato germinates, the solanine content in the bud and bud eyes can be as high as 0.3%- 0.5%. So when eating potatoes, cut off the sprouting place. When cooking, when potatoes are cooked at a high temperature of 170℃, toxic substances will decompose.
Refer to the above content: People's Daily Online-No.122: Does potato turn over as a staple food? There are too many benefits.
People's health network-potato PK rice, who is more suitable as a staple food?