However, according to the Mayo Clinic, rapid weight loss is neither safe nor recommended. It's usually the result of losing water weight or burning lean tissue rather than fat, neither of which is good for your overall health.
Furthermore, the use of sweat suits for rapid weight loss is temporary, as water weight can re-accumulate once you hydrate.
According to the National Academy of Sports Medicine, how much water weight you can lose while wearing a sauna suit depends on factors such as your initial hydration level and how your body naturally retains water (NASM).
So, if you're wondering how long you should stay in a sauna suit to lose 2 or 5 pounds, there's no simple answer. In any case, this weight loss is only temporary.
Instead, the Mayo Clinic recommends focusing on developing long-term weight-loss habits such as eating nutritious foods and engaging in physical activity.
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