Magnesium is an essential mineral and one of the body’s key electrolytes. While many foods naturally contain magnesium, many people do not get enough from diet alone. Magnesium glycinate, also known as magnesium bisglycinate, is a form of magnesium made by binding elemental magnesium to glycine, an amino acid often associated with relaxation and sleep support. This makes magnesium glycinate a popular choice for those looking to support relaxation, calmness, and overall sleep quality.
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Research Notes
Magnesium form matters. In a randomized, double-blind study comparing magnesium citrate, magnesium amino-acid chelate, and magnesium oxide, organic forms showed better magnesium bioavailability than magnesium oxide. (Walker AF et al., Magnesium Research, 2003) View study
Glycine has been studied for sleep support. Research published in Neuropsychopharmacology found that glycine may support sleep by promoting a normal drop in core body temperature and shortening non-REM sleep latency in a sleep-disturbance model. (Kawai N et al., 2015) View study
Many Americans fall short on magnesium from diet alone. An analysis of NHANES 2013–2016 data found that 48% of Americans consumed less magnesium from food and beverages than their Estimated Average Requirement. (NIH Office of Dietary Supplements; USDA NHANES 2013–2016) View source
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