Fasting is also called 5/2 fasting therapy. Choosing a light diet (starvation) for two consecutive days in a week is a way to lose weight. Standard: the daily energy of fast food is 600kcal/ for boys and 500kcal/ for girls (with recipe recommendation). Eating and drinking all day with high energy intake and inserting light food properly can protect the brain, lower blood sugar and improve immunity. As a kind of dietotherapy, it mainly solves a series of chronic diseases caused by unhealthy diet. For example: constipation, fatty liver, hypertension, obesity and so on. Moderate "fasting" can well alleviate the symptoms of this kind of disease.
The concept of fast food is that moderate dieting is good for health, which is similar to the saying that moderate dieting can effectively help the body expel toxins, promote blood circulation and enhance the body's excretion function, but only if the method is chosen properly. Fasting every other day means eating one day and not eating one day; The 52 fasting method is to fast for two consecutive days in a week; The method of fruit and vegetable juice fasting is to fast on 2-5 days of 1 month, and only drink boiled water, fruit and vegetable juice and vegetables during fasting; Intraday fasting means not eating for one day 16 hours, and eating normally for the remaining 8 hours.
There is a scientific reason for not eating. You may have this experience: when you are full, especially when you are full, you will feel a little sleepy and tired, because at this time, most of the blood will gather in your stomach to provide power for your stomach to help digestion, and there is not enough blood for your head to clear your head. At this time, the brain will send out a tired signal, and there is no extra blood to clean up the toxins in the body.