daily amount for adults is higher because it includes magnesium from all sources, including food. Adult men generally need 400–420 mg per day, while adult women generally need 310–320 mg, depending on age and life stage.
The difference is important: the 350-mg upper limit applies specifically to supplemental and medication sources.
What Happens If You Take Too Much?
Excessive supplemental magnesium can cause digestive problems.
Common effects include:
- Diarrhea
- Nausea
- Abdominal cramping
Extremely high amounts can be much more serious and may lead to low blood pressure, difficulty breathing, irregular
