Nature’s Way Magnesium L-Threonate+ is a clinically studied formula that helps support cognitive function in the elderly experiencing mild cognitive impairment. Each serving provides 48 mg of magnesium from Magtein®, a patented and research-backed form of Magnesium L-Threonate, along with added benefits of Vitamin C and Vitamin D3. This combination not only supports cognitive function, but also contributes to the development and maintenance of healthy bones and teeth, promotes normal muscle function (including heart muscle), and acts as a source of an electrolyte for the maintenance of good health.