Fad diets try to offer a quick fix for fast weight loss, and, even if they work, the result is short-term and the pounds come bouncing back. The biggest problem with unhealthy fad diets is that you shouldn`t stay on any of them for extended periods of time because they are generally unbalanced nutritionally. Many fad diets don`t work at all, and some can be dangerous because they`re based on bad or strange ideas, like `The Sleeping Beauty Diet` where you knock yourself out for several days at a time with sedatives.

1. Tapeworm Diet
This must be the most disgusting diet ever thought of, and there is evidence that `tapeworm diet pills` were marketed from 1900 - 1920`s. Basically, you ingest beef tapeworm eggs (beef tapeworm is supposedly the best choice), and then you take medicine to kill the tapeworm after you`ve lost the desired amount of weight. It doesn`t take a genius to know this diet is both ineffective and unhealthy. You`re not changing your eating habits with this `diet,` so all the weight will come back once the worm is gone, and it`s extremely unhealthy to have a parasite living in your body sucking all of the nutrition out you.

Text courtesy: www.toptenz.net