While sweating does help you lose weight, it is probably not the kind of weight you are wanting to lose. Perspiration is considered water loss, not fat loss and doesn’t cause you to lose weight that will continue to stay off your body. In most cases, after a good sweat, the moment you drink a glass of water you will gain the water weight back.
The best way to lose weight is to eat right and exercise, but not rely on sweating to help you lose weight. If you are retaining water and need to shed a pound or two of water weight, than perspiration can help, but should not be relied upon as weight loss that is permanent.
When a person sweats they remove toxins from their body, rid their system of electrolytes and excrete salts and minerals. This is hardly fat loss. The body sweats to maintain a healthy body temperature that is required to keep it operating efficiently. Without sweating, your body may not be able to regulate its core temperature. In order to lose weight, the body must be hydrated, otherwise the system recognizes that it is in a dehydrated state. When this occurs, bloating can arise because the body holds on to the fluid it has in order to stay alive. This means that when you work out and sweat a lot, you must replenish your body with fluids in order to lose weight.