@rphreviews: Muscle cramps ruining your sleep? Not all magnesium is equal The best magnesium for muscle cramps is not the one most people grab. Magnesium citrate and magnesium oxide are poorly absorbed and can cause diarrhea and GI upset. Magnesium malate is the one I look for to help support muscles. - 500 mg of dimagnesium malate per serving - Time-release magnesium that lasts up to 8 hours - Sustained release helps lower GI side effects from magnesium - Helps support muscle cramps and normal muscle function As a pharmacist of 18+ years, this is the magnesium supplement I'd grab for muscle support. MagSRT by @Jigsaw Health Just a quick disclaimer: While I’m a licensed pharmacist, the advice I share here is for general educational purposes only. Always check in with your own doctor or healthcare provider for personal medical advice.