Best Magnesium Supple­ments in 2022 for Sleep, Brain, Heart

Should I Supplement with Magnesium?

Magnesium is essential for health.

The quotes below are from the abstract and introduction to ‘Magnesium in Man: Implications for Health and Disease,’ published in 2015 in the American Physiological Society’s academic journal Physiological Reviews.

Magnesium:

“The United States Food and Nutrition Board recommends a daily intake of 420 mg for men and 320 mg for women. However, recent reports estimate that at least 60% of Americans do not consume the recommended daily amount.”

Most products below are available for a great price at iHerb.com and ship internationally. The products link to iHerb with a code that gives you (at checkout) a $5 USD discount on your first order at iHerb or a 5% discount for later orders (but not when you apply a better discount code). If you buy via the links, the creator of this page receives the $5 or 5% you saved as a reward. iHerb periodically has better discount codes.

Magnesium L-Threonate or Magtein®

Magnesium bound to threonic acid (a metabolite of vitamin C).
Well absorbed (in non-human animal model), may particularly efficiently raise magnesium levels in the brain, which (in older adults) may improve cognition, memory and learning.
May improve sleep alone or in combination with the amino acid L-Theanine (found in tea).
The products below are ordered by price. Read the label before use.

Magnesium Bisglycinate

Magnesium bound to the amino acid glycine (found in protein).
Well absorbed. Glycine has multiple health benefits, is an inhibitory neurotransmitter in the central nervous system and may improve quality of sleep.
May especially improve sleep when combined with the amino acid L-Theanine (found in tea).
The products below are ordered by price. Read the label before use.

Magnesium Malate

Magnesium bound to malic acid (a precursor to citrate, found in fruit).
Well absorbed (in non-human animal model). Malic acid may have health benefits related to energy production and preventing kidney stones.
The products below are ordered by price. Read the label before use.

Magnesium Chloride

Magnesium bound to chloride, extracted from sea water.
Well absorbed.
The products below are ordered by price. Read the label before use.