The pseudoscience behind salt therapy

Written by Dr. Kate McCann
15th March 2022

I’m getting ready for an evening Zoom meeting … by the cozy glow of a salt lamp.

Yes, I’m being trolled in real life by a nurse manager who works with me. He brought in a salt lamp – he says for mood and ambiance. I say it’s to mock me.

#mythbusting Halotherapy is trendy right now. And while it’s a legitimate option for ambiance or a spa treatment, there is no evidence for salt lamps or salt caves for use as medical therapy. It’s worth noting that in countries with stricter consumer and patient protection laws, salt therapy – like other spa treatments – cannot be advertised or promoted that as a medical treatment or prevention.  There is no evidence that it can treat or prevent disease. 

It’s well-worth asking the question that applies beyond just salt lamps:  Why do is it okay to misleadingly market spa or beauty treatments – that are legitimate relaxing or beautifying treatments  – as also having (non-existent) medical benefits? 


It’s also worth noting that salt therapy also sometimes includes #nutribabble about detox. Your liver and kidneys do a full-time job detoxing you all day, every day. They don’t need salt therapy – or while we are here, neither do they need alkaline water, juices, cleanses, teas, fasts, IV drips…

The science behind the salt lamp? No, it doesn’t create negative ions. Famously, this has been tested – and debunked – a couple of years ago by Professor of Chemistry at Caltech, Prof. Jack Beauchamp.

It is very relaxing and de-stressing though, which has it’s own legitimate value.

 

 

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