Waist trainers provide a waist slimming effect, but it is only temporary. They do not provide permanent change and will not aid meaningful weight loss. These garments also have several associated risks, including breathing difficulties, digestion issues, and organ damage due to long-term use.

Do sweat belts help lose belly fat?

Unfortunately, these sauna belts don't reduce belly fat. The theory of these sweat belts is that if you heat up your body you'll burn more fat, especially if you're exercising while wearing them, as most of these products advise.

How long does it take for a waist trimmer belt to work?

Depending on how quickly you ramp up your waist training schedule, you will likely feel comfortable wearing a waist trainer all day after 2–3 weeks. Once you're in a routine, aim for a minimum of 8 hours a day and a maximum of 12.