THE JOINT

Your weekly dose of RA wellness

The Evidence Edition

I'm Soaking My Way Across Turkey

Turkey has given me plenty of chances to test one of the oldest remedies for aching joints: hot water.

Between the thermal springs, mineral pools, and hammams, I've spent this trip soaking, steaming, and scrubbing my way across the country. After a full day of walking, lowering myself into warm water feels incredible.

But spa culture doesn't stop at "this feels good." Mineral springs and mud baths get credit for lowering inflammation, pulling toxins out of the body, and treating rheumatic disease outright.

So what's really helping? The heat? The minerals? Taking the weight off sore joints? Or just the excuse to stop moving for twenty minutes?

Feeling better doesn't mean your RA inflammation has changed.

More Than a Turkish Tradition

This has a real name and a real research history.

Balneotherapy is the medical term for soaking in naturally occurring mineral or thermal water, sometimes paired with mineral-rich mud called peloid therapy.

Researchers have studied it in RA patients for decades. Some results look promising. But the studies make it hard to know what's helping, how much, or whether the minerals deserve any of the credit.

The Promises and the Problems

Here's where the marketing and the research start to pull apart.

A review of eight randomized trials found improvements in morning stiffness, active joint counts, daily function, and grip strength in some people with RA, although the results varied considerably. A later review reported better quality of life, often after sessions lasting about 20 minutes. In one small RA trial, spa therapy improved several measures when added to standard medication. It was tested as an add-on, not a replacement.

Then comes the catch. A 2025 systematic review and meta-analysis across rheumatologic conditions rated the certainty of balneotherapy’s effects as very low. Bias in the studies, inconsistent results, and likely publication bias all weakened the conclusions.

Warm water alone can loosen stiff joints and take pressure off them. Add relaxation, a break from your routine, and the expectation that you’ll feel better, and it becomes nearly impossible to isolate what the minerals are doing.

The minerals are difficult to study, too. Every spring has a different mix and concentration, making it hard to compare results or determine whether the mineral content adds anything beyond heat and time in the water.

Epsom salt, or magnesium sulfate, is an easy way to add minerals to a bath at home. The theory is that magnesium passes through your skin and enters your bloodstream, but the evidence does not support meaningful absorption from bath salts. Add it if you enjoy the ritual. The warm water is probably doing most of the work.

The same goes for detox claims. Sweating helps regulate body temperature, but it has not been shown to flush out toxins or reduce the inflammation driving RA.

You don't need a Turkish spa to test this for yourself.

Before You Go

Balneotherapy isn't detoxing my body or reversing rheumatoid inflammation. But I feel less stiff, more relaxed, and better overall afterward, and there's enough evidence to suggest that kind of short-term relief may be real.

Something can be therapeutic without being a cure.

I’m going to keep soaking while I’m here, but I’m leaving the healing claims at the spa.

Have you tried mineral baths or hot springs for your RA? Hit reply and tell me what you noticed.

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