Being fasting becomes fat because over time the metabolism slows down. In addition, it is only after 72 hours of fasting that the body begins to spend the accumulated fat, until it consumes muscle mass, which increases sagging.
Until the body begins to use the fat stored in the adipose tissue as energy source the hunger is so intense that the individual probably eats before 72 hours and can not select what he eats nor control the amount, promoting the process of fat accumulation and obesity.
To lose weight it is very important to make small and low calorie meals every 3 hours to keep the metabolism fast and prevent hunger from causing the person to eat very high calorie foods. This habit also helps the bowel to function better by treating constipation, which can impair weight loss.
To learn more tips to lose weight in a healthy way see: Recipe to lose weight with health and forever.
When to fast
Fasting for just one day is not fattening and may even be necessary in some situations, such as taking a blood test to check cholesterol or triglyceride and even doing an endoscopy, for example. Fasting can be indicated by the doctor before surgery because with the anesthetic the digestive system is stopped and can not do the digestion.
Learn about the right time for fasting to do each type of blood test in: Fasting for blood test.