Qunol Magnesium Capsules 420mg, 100% DV, High Absorption Magnesium Supplement, Extra Strength, Bone and Muscle Health Supplement, 180 Count

Customers find this magnesium supplement effective for muscle cramps, joint pain, and sleep quality, with one noting it provides 100% RDA of the mineral. The supplement is easy to swallow and customers consider it good value for money. Opinions about stomach effects are mixed - while some say it doesn't upset their stomach, others report it causes diarrhea the next day.