Check your daily magnesium target and get most of it from food
Added
Magnesium helps regulate muscle and nerve function, blood sugar and blood pressure. If you track macros, add it to your micronutrient view and lean on legumes, nuts, seeds, whole grains, leafy greens and dairy before reaching for a pill. Check the NIH fact sheet for current amounts and medication interactions.
The result
Result: NIH ODS: adult men need 400-420 mg a day and women 310-320 mg; older people are more likely to get too little; the upper limit from supplements and medications is 350 mg a day, and high supplement doses can cause diarrhea, nausea and cramping.
Note: Not medical advice. Talk to your doctor or pharmacist before starting any supplement, especially if you take medications.
Source
NIH Office of Dietary Supplements: Magnesium Fact Sheet for Consumers (opens the original source in a new tab). Check it for the latest numbers before you act.