Health Benefits of Fasting
1. Weight loss
Since the body is unable to draw its energy from food during fasting, it dips into glucose that is stored in the liver and muscles. This begins around eight hours after the last meal is consumed. When the stored glucose has been used up, the body then begins to burn fat as a source of energy, which can result in weight loss.
2. Regenerate immune cells
Prolonged fasting may also be effective for regenerating immune cells. When you starve, the system tries to save energy, and one of the things it can do to save energy is to recycle a lot of the immune cells that are not needed. Repeated cycles of two to four days without food over a six month period destroyed the old and damaged immune cells in mice and generated new ones.
Some researchers report years of animal studies have shown a link between restriction of calories, fewer diseases and longer life. . Insulin-like growth factor-1 (IGF-1) is a hormone linked to certain diseases that affect lifespan, such as cancer and type 2 diabetes. Some experts report eating increases IGF-1 production. Fasting may be a way to decrease IGF-1 levels, which could potentially lower the risk of chronic diseases and extend lifespan.
4. Blood sugar
Some studies have shown that intermittent fasting improves insulin sensitivity more than traditional diets, but others have not found the same advantage. Researchers have also reported intermittent fasting and traditional diets lead to comparable decreases in haemoglobin A1c.