Does the sauna help you lose weight? If you've ever stepped out of a sauna covered in sweat, you might have questioned if it's actually effective at helping you lose weight. Losing weight without diets or intense exercise is many people's dream. A sauna seems like an easy way out—but does it work?
In this article, we'll discuss how a sauna can help you lose weight, from losing water weight to boosting your metabolism. You'll also learn how to use a sauna safely, how many calories you can burn, and what risks to watch out for. By the end of this article, you'll know if a sauna can be part of your weight loss regimen.
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Can Saunas Help with Weight Loss?
Saunas make you sweat a great deal, so you instantly feel lighter. Are you losing fat, then? Not always. Most of the weight you lose in a sauna is water weight, which comes back when you drink liquids again. Regular sauna use might help you lose weight in some other ways, however.
Saunas can increase your heart rate, like gentle exercise, which does burn some calories. They also dilate blood vessels, relax muscles, and help your body's metabolism. A sauna alone will not replace diet and exercise, but it can be a useful complement to a healthy life.
Sauna Weight Loss Benefits

Saunas not only relax you, but they can also help you lose weight in a variety of ways. While they won't magically melt the fat off, they can help your body work more efficiently, so when you use them in conjunction with diet and exercise, losing weight becomes easier.
1. Water Weight Loss
Sweating in the sauna causes you to lose water weight quickly. This can lead you to feel lighter but is not permanent since your body will reabsorb the lost fluids when you rehydrate. However, regular use of the sauna can help in managing bloating and water retention.
2. Detoxification
Saunas help your body get rid of toxins through sweating. While detoxing does not necessarily lead to weight loss, it can help improve digestion and metabolism, making it easier for your body to burn fat.
3. Boosted Metabolism
Sitting in a sauna increases your heart rate, much like mild exercise. This slightly increases burning calories and can potentially boost your metabolism in the long run. Having a higher metabolism helps your body burn more calories, even when you're at rest.
4. Less Stress
Stress also leads to weight gain by increasing cortisol, which is a hormone that promotes fat storage. Saunas relax you and reduce stress levels, reducing the chances of emotional eating or hormonal weight gain.
5. Supported Endocrine System
Your endocrine system controls hormones like insulin and thyroid hormones that affect weight gain and fat burning. Saunas promote healthier hormone balance that can allow your body to be more efficient at weight management.
6. Increased Exercise Capacity
Sauna bathing on a regular basis can enhance circulation and endurance, making it easier for you to perform workouts. It also helps with muscle recovery, enabling you to exercise more often without overly sore muscles.
7. A Better Night's Sleep
Sleep deprivation is linked to weight gain, as it increases hunger hormones and reduces metabolism. Saunas calm your body and help you sleep better, which can indirectly help you lose weight.
8. Alleviation of Muscle and Joint Pain
Pain or stiffness can make it hard to stay active. Saunas loosen muscles, improve blood flow, and reduce joint pain, allowing you to stay regular with exercise, the single most crucial element for long-term weight loss.
Tips for Using a Sauna to Lose Weight Safely
To enjoy maximum benefits with no risk, follow these simple tips:
- Stay Hydrated – Drink water before and after your workout to prevent dehydration. Avoid alcohol and caffeine.
- Don't Rely Only on Saunas – Use them as a supplement, not a replacement for diet and exercise.
- Limit Your Time – Start with 10–15 minutes and increase gradually. Leave if you feel dizzy.
- Use After Exercise – Helps in muscle recovery and metabolism enhancement.
- Choose Right Temperature – Start with lower heat and adjust as needed. Infrared saunas are gentler.
- Eat Healthy – A healthy diet enhances the benefits of sauna.
- Listen to Your Body – If you are feeling ill, stop immediately.
How Different Types of Saunas Work
They all make you sweat, but they do so differently. Here are the main kinds and how they help you:
Type of Sauna |
How It Works |
Temperature |
Key Benefits |
Traditional Dry Sauna |
Heats the air using hot rocks or a stove; very dry heat |
150–195°F |
Improves circulation, promotes sweating, deep relaxation |
Steam Sauna (Steam Room) |
Uses steam to create 100% humidity; moist heat |
110–120°F |
Detoxifies, hydrates skin, opens sinuses, soothes muscles |
Infrared Sauna |
Uses infrared light to heat the body directly |
120–150°F |
Boosts metabolism, aids muscle recovery, deep sweating |
Portable/Home Sauna |
Small, lower-heat saunas for home use |
Varies (Lower Heat) |
Easy access, promotes relaxation, mild sweating |
1. Traditional Dry Sauna
This sauna heats the air through hot rocks or using a stove, and the temperature is 150–195°F. The air is very dry, so the heat will feel more severe. It helps with sweating, circulation, and relaxation.
2. Steam Sauna (Steam Room)
Instead of dry heat, steam rooms use water to create high humidity. The heat is lower (110–120°F), but you still sweat profusely. This can help with detox, moisturizing your skin, and opening up your sinuses.
3. Infrared Sauna
Infrared saunas heat your body directly with light, not the air around you. They use lower heat (120–150°F) but induce deep sweating. They are best for relaxation, metabolism, and muscle recovery.
4. Portable or Home Saunas
These are small, easy-to-use saunas for home use. They do not reach the same high heat as some other types, but they still cause you to sweat and relax.
How Many Calories Do You Burn In A Sauna?
Saunas induce sweating and an increase in heart rate, similar to mild exercise. But how many calories do you actually burn?
On average, one expends 10–33% more calories in a sauna than when at rest. The exact amount differs based on body weight, sauna duration, and temperature.
The following is an approximate estimate:
- A 150-pound (68 kg) person can burn 50–100 calories in a 30-minute session.
- A 200-pound (91 kg) person may burn 70–150 calories at the same time.
While not nearly as effective as exercise, regular sauna use can modestly boost your metabolism. The majority of the weight you lose shortly after is water loss due to sweating, which is re-gained upon rehydration.


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How Long Do You Have to Be in the Sauna to Lose Weight?
Saunas can aid in weight loss, but sitting in them for hours won't suddenly melt fat away. The trick is to utilize them safely and regularly.
For general benefits, 15–20 minutes per session is enough. This helps in sweating, metabolism boost, and relaxation of the muscles. For weight loss, use a sauna 3–7 times a week, along with a proper diet and exercise.
Staying for over 30 minutes can lead to dehydration and dizziness. If you are new to saunas, start with 10–15 minutes and slowly do more as your body adapts.
While a sauna helps with water weight and metabolism, fat loss is gained through proper nutrition and exercise. Let us now speak about the possible risks of sauna usage for losing weight.
Possible Risks of Using Saunas for Weight Loss
While saunas can help you lose weight, their misuse can be harmful. Here are some things to watch out for:
1. Dehydration
Profuse sweating without drinking enough water can lead to dehydration, which can cause dizziness, headache, or fatigue.
How to avoid it: Always drink water before, during (if needed), and after sauna sessions. Consider electrolyte-rich beverages if you sweat excessively.
2. Overheating
Excessive time in high temperatures can cause nausea, fainting, or heat exhaustion.
How to avoid it: Limit sauna sessions to 15–30 minutes, take breaks if you feel unwell, and leave immediately if you feel dizzy or overheated.
3. Temporary Weight Loss
Most weight loss from saunas is water weight, not fat, and will return upon rehydration.
How to avoid it: Use saunas as a complement to a healthy diet and regular exercise, rather than relying on them for long-term weight loss.
4. Heart Stress
Saunas increase the heart rate, which is risky for people with heart conditions or low blood pressure.
How to avoid it: If you have any cardiovascular issues, consult a doctor before sauna use. Start with shorter sessions and avoid extreme heat.
5. Electrolyte Imbalance
Excessive sweating can deplete essential minerals like sodium and potassium, leading to muscle cramps or weakness.
How to avoid it: Maintain a balanced diet rich in electrolytes and replenish lost minerals with foods like bananas, nuts, and leafy greens.
Provided they are used safely, saunas can be a great addition to a healthy lifestyle.
Final Words
Saunas can help you lose weight by making you sweat, boosting metabolism, and helping with recovery. The majority of weight lost, however, is water weight, not fat. To see real results, you need to combine sauna use with a good diet and exercise.
It is essential to use a sauna safely. Drink plenty of fluids, keep sessions between 15–30 minutes, and heed your body's warnings. Although saunas have numerous advantages, they cannot take the place of adequate weight loss.
When used appropriately, a sauna is a great addition to your routine to help you relax, recover, and benefit your overall health and wellness.
Diana Mason
Hi there! I’m Diana Mason, the chief editor of Patiowell brand. With over 15 years of diving deep into the world of outdoor furniture, I’ve developed a keen eye for what makes outdoor spaces truly special. I love sharing tips and inspiration to help you create your perfect backyard retreat. Our blog is a reflection of my passion and expertise, featuring only the best pieces that I personally vouch for. Thanks for stopping by—I can't wait to help you transform your outdoor living space!
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