Daily How Much

For healthy adults, up to 350 mg per day of elemental magnesium from magnesium glycinate is generally considered safe.

For women over 50, magnesium glycinate usually means 100–350 mg elemental magnesium daily, guided by diet and a 350 mg supplement limit.

The magnesium glycinate dose for blood pressure usually sits around 200–400 mg of elemental magnesium per day, kept within the 350 mg supplement UL.

Most adults should keep magnesium glycinate to 350 mg of elemental magnesium per day from supplements unless a clinician advises otherwise.

For sleep support, many adults use 100–200 mg elemental magnesium as glycinate at night without crossing 350 mg/day from supplements.

Most women sleep well with 100–200 mg elemental magnesium at night, while daily totals should match age-based needs.

Adults generally need 400–420 mg (men) and 310–320 mg (women) of magnesium per day from all sources.

Women over 40 need about 320 mg of magnesium per day from food and drinks; supplements add only as needed.

For adult men, daily magnesium needs are 400–420 mg, based on age.

Most adults do well with 200–400 mg elemental magnesium daily for sleep support; start low at night and adjust with your clinician.