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There were a few posts about this problem a couple of weeks ago. Salt was suggested as a gluten free solution.
My suggestion is to take a couple of tablespoons of gf liquid calcium.
This is available at drug stores and health food stores. Gluten free liquid calcium is clearly marked.
This is a useful product to have on hand and I find it to be an almost instant remedy for leg cramps as well as a very pleasant way to increase calcium intake.
FWIW
Jessie.
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