Daily How Much

Daily magnesium for men is 400–420 mg; keep supplemental magnesium at or below 350 mg unless your clinician says otherwise.

Most adults on keto aim for the standard RDA of magnesium from food, using small supplemental doses if intake falls short.

During pregnancy, target 350–360 mg/day of magnesium from all sources; keep supplement-only doses ≤350 mg unless your clinician advises.

No set dose exists for magnesium in RLS; stay within the 350 mg/day supplement limit unless your clinician advises otherwise.

There’s no set therapeutic dose for nerve pain; many adults trial 200–350 mg elemental magnesium daily, staying under the 350 mg supplement UL.

Target 200–350 mg elemental magnesium daily for mood; stay under the 350 mg supplement cap unless your doctor advises otherwise.

Most adults can try 200 mg elemental magnesium 30–60 minutes before bed; stay under the 350 mg supplement cap unless a doctor directs.

Women’s daily magnesium needs are typically 310–320 mg, with higher targets in the teen years, pregnancy, and while breastfeeding.

Older women generally aim for about 320 mg of magnesium from food each day, keeping supplement-only intake under 350 mg unless a clinician advises.

For a magnesium salt bath, add 1–2 cups of Epsom salt to a standard tub; start with 1 cup if you have sensitive skin.