caledonia
Senior Member
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Any form of magnesium, and any lithium supplementation, gives me horrific RLS – as well as my legs, I get it in my arms, neck, back, and even my chin. 'Restless' doesn't really describe it, it's so acutely painful that I don't know where to put myself and morphine-based painkillers have no effect at all. The lithium was easy to identify, but with the magnesium it took me a long time to work it out; turned out it was in a combined supplement and I hadn't spotted it.
Only posting in case anyone else develops very severe RLS but is finding it hard to work out why. I wouldn't wish it on my worst enemy!
Could be an imbalance in electrolytes. Magnesium and potassium work together. Everyone might need something a little different, but I also do a bit of potassium gluconate, and a pinch of sea salt along with the magnesium.
The combined magnesium/potassium supplements are usually a 50/50 mix, which might not be what you need.
I'm not sure how lithium would factor into creating restless legs.