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When to take magnesium glycinate

verdavita editorial team · 2026-11-05

The NIH magnesium fact sheets we checked do not name a best time of day. Start with the directions on your label, and ask a pharmacist about timing if you take medication.

Start with the label

Directions differ by product. Check the serving size and how often the label tells you to take it. Our Calm Night label says to take three capsules once daily, or as directed by your healthcare professional.

1Read the labelServing size and howoften to take it2Check medicationAsk about timing withyour pharmacist3Add it upCount every product withmagnesium4Stay consistentFollow the same labeldirections
A simple check before you start.

Medication timing

The NIH says magnesium may interact with oral bisphosphonates, tetracyclines and quinolone antibiotics. Diuretics and proton pump inhibitors can also affect magnesium status. If you take any of these, ask your doctor or pharmacist how to time your supplement.

Count every source

The NIH upper limit for magnesium from supplements and medications is 350 mg a day for adults, unless a health care provider advises otherwise. Add up every product you take, including antacids and laxatives that contain magnesium.

Calm Night, 1 serving275 mgMetabolic Reset, 1 serving200 mgBoth together475 mgNIH upper limit: 350 mg
Label amounts per serving compared with the NIH upper limit for magnesium from supplements and medications. Food does not count toward this limit.

High intakes from supplements and medications can cause diarrhea, nausea and abdominal cramping.

Products mentioned

Calm Night bottleCalm Night
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Sources

General information, not medical advice. Images are illustrative.

†These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.

* Individual results may vary. Reviews reflect the experiences of individual customers.

Consult your healthcare provider before starting any supplement, especially if you are pregnant, nursing, taking medication or have a medical condition.