Sweat suits, sometimes called sauna suits, are usually made from rubber or plastic and are designed to keep in heat. When wearing one your body temperature increases, which causes you to sweat and, theoretically, lose more weight. As sweat suits can be quite expensive, many people opt to make their own by using garbage bags, which can create the same effect.
FAT LOSS CLAIMS
DO THEY WORK?
When wearing a sweat suit, you may well lose a lot of weight in a very short space of time, but this weight loss is simply water weight lost through sweat. This is not fat loss. Any weight loss results from wearing a sweat suit are temporary, and the weight will return once you are rehydrated.
The only way to shed pounds permanently is to eat a sensible calorie-restricted diet and partake in an intensive exercise regimen. Fat loss can take time and should be seen as a long-term goal, not as a task that is suited for quick fixes. Aim to lose 1 to 2 lbs. per week from dieting and exercising.