Can Using a Sauna Help You Lose Weight? Science-Backed Benefits

If you've ever left a sauna feeling leaner and more relaxed, you're not imagining it. While saunas aren't a magic fat burner, evidence suggests they can play a meaningful role in a comprehensive weight loss and wellness plan.

A 2018 review published in Mayo Clinic Proceedings found that regular sauna use may support cardiovascular health, reduce blood pressure, improve circulation, and positively impact metabolic processes — all key players in fat loss and energy regulation.

Boosts metabolic activity: Sitting in a sauna increases your core body temperature, which stimulates your cardiovascular system. Heart rates during sauna bathing can reach levels comparable to moderate-intensity exercise, which forces your body to burn more energy as it attempts to cool itself down.

Helps shed water weight and reduce bloating: Many people experience excess fluid retention due to sodium, inflammation, or hormonal changes. Sauna sessions help flush that out through sweat, offering a lighter, leaner feeling and visibly reducing puffiness.

Lowers cortisol and supports fat-burning hormones: Chronic stress elevates cortisol, a hormone linked to increased abdominal fat. Regular sauna use has been shown to lower cortisol levels and trigger relaxation responses, which can indirectly support fat loss and appetite regulation.

Speeds recovery and preserves lean muscle: Sauna use after workouts enhances circulation, oxygen delivery, and muscle recovery — translating to less soreness, faster bounce-back, and a stronger ability to maintain your training routine.

Encourages consistency and wellness habits: A dedicated sauna routine reinforces structure, self-care, and body awareness — all of which make it easier to stay consistent with your goals.

Saunas aren't a silver bullet, but as part of a well-rounded wellness strategy, they can amplify your efforts in meaningful ways. Aquapeutics offers a range of steam and infrared saunas designed for in-home use. Browse our steam and sauna collection to find the right fit for your wellness routine.

Frequently asked questions: For weight support, most users benefit from 3–4 sessions per week, 15–25 minutes each. Stay hydrated and consult a doctor if you have heart conditions. Both steam and infrared saunas offer benefits — infrared may penetrate deeper, while steam encourages intense sweating.