The Master Cleanse is also called the Lemonade diet because while you are on it, lemonade mixed with syrup is the main 'meal' you will eat. Add a laxative to the mix and you have the jist of this diet. It is dangerous, and if you the first thing about dieting or your health, the description alone is enough to sway you. The cleanse works by eliminating foods from the diet, replacing with the beverage instead. It can be performed for a weekend or longer, depending on your needs. It is deigned to cleanse the body of toxins and helping to shed unwanted pounds. There are a ton of problems with this diet. First, it is hard to maintain the diet because the hunger pains are great. Another problem is that taking a laxative every night can cause serious damage to your health. And third, the weight is going to return once you start eating again. There is very little research on this diet as well. There are tons of diets out there, but this is one that you should avoid at all costs unless you want to harm yourself.