Ultimately, there is no single magnesium supplement that is automatically best for everyone. Your goal, diet, digestion, medications, and overall health all matter. More magnesium is not necessarily better, and excessive supplemental magnesium can cause diarrhea and other problems.
Before starting a magnesium supplement, check the amount of elemental magnesium on the label rather than judging the product only by the compound name. If you take medications or have kidney problems, it is especially important to speak with a healthcare professional before supplementing.
