Intermittent fasting is generally divided into two categories: daily limited eating, shortening the eating time to less than 6 to 8 hours a day, the so-called 5: 2 intermittent fasting, that is, eating only a small amount two days a week.
A series of animal and human studies show that the alternation of fasting and eating can promote cell health, which may be achieved by triggering metabolic transformation mechanism when food is in short supply. This transformation occurs when cells consume stored sugar-based fuels (which can be obtained quickly) and begin to convert fat into energy in a slower metabolic process.
In 20 14, Valter Longo, the head of the anti-aging department of the University of Southern California (USC), made experimental mice and cancer patients fast for four days. During fasting, mice and cancer patients have discarded old blood cells, which shows that once they fast, their bodies will produce new cells to replace the old ones, thus effectively regenerating their immune systems.
Longo's research results led him to conclude that long-term fasting can reduce the serious side effects of chemotherapy on cancer patients (in fact, some patients have begun to try this therapy themselves to help them fight cancer) and even improve the immunity of healthy people.
A study of Yale University School of Medicine 20 15 further shows that both dieting and fasting can produce a compound, which can prevent protein associated with inflammatory diseases such as diabetes and atherosclerosis. This study evaluated immune cells in humans and mice.
For healthy people, intermittent fasting is relatively safe and as effective as a very low-carbohydrate diet in encouraging weight loss.
However, there are some exceptions. If your immune system is impaired or your liver and kidney function is impaired, you should not fast. If you have an active lifestyle, please don't exercise after fasting for a whole day. This may lead to the loss of sodium and potassium in the body. These two important electrolytes are very important for the function of kidney, heart and muscle. Nausea, feeling weak and muscle spasm are all manifestations of low electrolyte, indicating that your body may have problems. Significantly reducing calorie intake during exercise will also reduce your overall metabolism.