They're taking low quality forms like magnesium oxide and magnesium citrate, and they're not taking them in a way that's going to maximise their absorption and effectiveness. What we recommend is splitting up your dose of magnesium to at least two different times during the day. As the research has shown that taking smaller doses of magnesium more frequently is more effective at raising your magnesium levels compared to taking one large dose. So splitting up your dose of magnesium to at least tw