Jigsaw Health MAG SRT Magnesium Supplement 120 TabletsBrand: Jigsaw Health Features: Magnesium Supplement: Jigsaw MagSRT is the only magnesium supplement combines premier dimagnesium malate into a timed release formula that is more bioavailable than other forms of magnesium and avoids digestive discomfort. Why It Matters: Magnesium intake can relieve occasional leg cramps and muscle tension by supporting healthy relaxed muscle tone and function, promote steady energy production, restful sleep, and more.