Are magnesium citrate supplements any good? Honestly, they’re not our preference … unless however, you’re on a tight budget and still want to get some of the benefits from a magnesium supplement. Magnesium citrate supplements are often used as a laxative, because of their ability to rapidly draw water into the small intestines. For some, this is exactly what they’re looking for. But if that’s not you … and you are supplementing with magnesium citrate … keep the elemental magnesium dose on the lo