Diuretics and impermeable clothing have been advocated from time to time for losing weight. These, however, cause weight loss rather than fat loss, and the resulting dehydration can be extremely dangerous. Although diuretics are often used in the treatment of hypertension in obese people, they have no place in the treatment of obesity itself.
Sauna belts and rubber suits are often used by the uninitiated in their quest to lose weight and inches. The resulting dehydration of the cells under the belts does cause a temporary loss of circumference. However, the change is short - lived, as normal fluid balance is quickly restored.