Foreign scholars believe that, firstly, starch is one of the most important energy sources for human body. Because starch quickly breaks down into glucose molecules and enters the blood after entering the human digestive tract, it becomes the main energy source of the brain. If you eat less or don't eat starchy food, the brain will send out "instructions" because of the lack of glucose source, and decompose the fat in the body to produce ketone bodies to meet the needs of the human body.

This can really help to lose weight in a short time, but in the long run, the lack of glucose in the brain will cause irreversible damage (such as memory loss).

Young people should never believe the "ketogenic diet" model advocated by the so-called "nutrition authority". The healthiest dietary pattern should be to eat less processed foods such as refined white rice and white flour, and eat more miscellaneous grains, vegetables, fruits and fish, supplemented by a small amount of meat and eggs.

Extended data:

There are many kinds of foods rich in starch, and they also have "good and bad points". A large number of scientific studies have confirmed that long-term consumption of finely processed rice flour food does increase the risk of diabetes. However, eating cereals such as oats, buckwheat, sorghum, quinoa, millet and corn, and potato foods such as sweet potato, taro and cassava will not lead to a rapid increase in blood sugar.

The reason is that these foods contain a lot of dietary fiber, which can reduce the absorption rate of glucose in digestive tract. More importantly, foods rich in starch, such as miscellaneous grains or potatoes, can not only make people feel full, but also contain rich vitamins, minerals and flavonoids, which are the nutritional elements lacking in polished rice and white flour foods.

Reference: People's Daily Online-"Ketogenic Diet" mode is not desirable.