While digesting food, the body will use most of its energy to process the nutrients that are in the food. This is why after a large meal people often feel sluggish and fatigued. During a fast, the body can take a break from this process and can more easily fight infection and can then help the body purge toxins that have been stored up in the cells over time. An excess of toxins in the body can lead to other health problems. People don't realize that as they eat processed foods these chemicals can build up in joints and tissues in the body causing all kinds of health problems.
Some experts believe that some cancers can be prevented through fasting.
Some other experts believe that fasting can be beneficial of done correctly and can help a person extend their lives and improve the quality in which they live their lives. Fasting can also be used to treat obesity. Before starting a fast, make sure to have a complete physical and make sure that your body is able to handle a fast. Diabetics should be especially cautious and be under close medical supervision before starting. Even though some experts claim that fasting can keep diabetes under control, it's still best to do as a doctor has told you.