Everyone knows Infrared Saunas make you sweat! But most people don’t realize you are shedding more than just water weight and toxins in your 40 minute session. Infrared Saunas have been proven to burn between 300-600 calories in a Far Infrared Sauna in 40 minutes. That’s the equivalent of a 2-3 mile run, based on your BMI (Body Mass Index). Infrared Saunas cannot replace healthy eating and exercise but they do provide an added calorie burn for those looking to accelerate their weight loss goals.