How much weight you lose really depends on your start weight and on the purpose of your cleanse. Weight loss for a larger person can be from 2-3 lbs per day slowing down to 1-2 lbs every 2-3 days. Many toxins are stored in fat cells and whilst consuming a juice only diet the body breaks these down for fuel. If weight loss is not your main objective then alterations will be made to your programme to stabilise your weight.