Commonly used dieting methods include banana dieting, clear water dieting, apple dieting, honey water dieting, black coffee dieting, rice soup dieting, yogurt dieting, dream fasting dieting and so on. Most of the time is three days, seven days, twenty-one days, twenty-eight days and so on.

The real meaning of fasting lies in mental exercise. The Sanskrit name of fasting yoga is UPAVASA, which means to keep the closest to the supreme consciousness, that is, to integrate the individual mind into the fluctuation of the supreme consciousness. Because you don't need much energy to digest food on an empty stomach, your brain will become unusually clear. If you use appropriate spiritual methods to guide these energies, your mind will be raised to the highest level of consciousness. Fasting is not only the purpose of spiritual practice, but also one of the oldest natural therapies and methods used to control the mind and appetite.