Some fruits are high in calories, like apples. An apple has about 96 calories, so if you drank 20 of them you would get about 2000 calories.
If you take your weight times 15 it will tell you the number of calories you must stay under to lose weight.
Juicing gives you water, vitamins, minerals, enzymes and phytochemicals. It has everything your body needs to build with. It's detoxifying and cleansing. It promotes alkalinity of body fluids.
Your body needs alkaline minerals to rid you of acid waste before it will let go of all the extra fat. Your body uses it's fat to protect itself from acids caused by our diet.