Magnesium glycinate, for instance, is one such type and is also ... Zeratsky says such problems include nausea, abdominal cramping and diarrhea. The good news is that side effects like that are rare ...

We don’t know about the longer-term effects of taking too much magnesium. That’s why the NHS suggests: “If you take magnesium supplements, do not take too much as this could be harmful.” It’s also ...