Magnesium L-threonate

Magnesium L-threonate is a form of magnesium, a mineral found naturally in the body and in foods like leafy greens and nuts. It is made by combining magnesium with L-threonic acid, a derivative of vitamin C. This form is thought to be easily absorbed by the body.

Manufacturers add magnesium L-threonate to foods and beverages as a source of magnesium, a nutrient. It is often found in powdered drink mixes, waters, and supplements marketed for cognitive support or relaxation.

In the U.S., magnesium L-threonate is generally recognized as safe (GRAS) when used as a nutrient. The U.S. National Academies of Sciences, Engineering, and Medicine have established upper intake levels for magnesium from all sources. EFSA has evaluated magnesium and its compounds, noting its role in various bodily functions. Research is ongoing into the specific benefits of magnesium L-threonate for brain health.