The Benefits of Oral Rehydration on Orthostatic Intolerance in Children with Postural Tachycardia Syndrome

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I read Cort's article, bought the oral rehydration solution and did some challenges.

I don't have POTS but drinking the solution during a big effort, decreases notably the PEM during the next days. (Less muscle pain, flu-like symptoms, fatigue...).

For me it worked and it's cheap here in Spanish Pharmas (about 3€ for 5L)
 

BrightCandle

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I have been using electrolyte drinks (SIS) for about a year and gradually my POTS has reduced. I recently moved to O.R.S which according to them follows the WHO recommendation and that has got rid of most of it if I take a few doses a day. I rate electrolyte replacement as a mechanism for improving POTS, I had really bad effects from it this time last year but slowly but surely it has improved with treatment. Wasn't as quick as the papers suggest for me but I was only doing once a day for a while with SIS and I often felt the need (and did) to combine with glucose since it is artificial sweetener based. 2-3 doses a day I think is necessary to make good progress for me.

Good to see the science matching my own experience of it anyway.
 
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I benefit from these. I also do well by just adding salt to my water (a mix of table salt and "Lite-Salt" which is high in potassium.)