Juice Fasting for Weight Loss refers to a diet that involves juicing fruits and vegetables and consuming only juice for all meals to lose weight. Juice fasting is generally also used for detox purposes but people who want to lose weight can benefit a lot from this weight loss diet too. The first advantage of juice fasting for weight loss is the fact that it is a nutritious type of diet. Obviously, if the diet consists of fruits and vegetables, it is a nutritious diet. Even if you are not going to feel full, you are still getting the nutrients that you need to be healthy.