As the name suggests, water diets are a type of diet that promotes high amounts of water consumption in an attempt to lose weight. Individuals on this diet typically initially lose high amounts of weight due to the total calorie deprivation associated with it. However, this diet is only maintainable for a few days before serious side effects begin.
A water diet is, in theory, one possible way to lose weight. Since water is calorie free, relying on it as your only source of nourishment means that you are only expelling calories, and not taking any in. Therefore, your initial weight loss will be exceedingly high.
While you can lose a lot of weight with the water diet, the risks posed by it are so serious that it should be avoided completely. A total absence of food can lead to dizziness, fainting or even coma. Even if you do not suffer from these conditions, surviving only on water for an extended period of time is guaranteed to wreak havoc with your metabolism, and you will end up gaining the weight back - and more - in the end.
When it comes down to it, trying a water diet is simply not worth it. While you can initially lose weigh with these types of diets, the risks are simply too great. Instead, try losing weight through a diet rich in fruits, vegetables, whole grains and lean meats. Including exercise in your life is a great way to increase calorie burn and lose weight.