Magnesium is essential for more than 300 biochemical reactions in the body and plays an important role in the nervous system and brain.1 Unfortunately, most Americans don’t get enough magnesium from their diet, and suboptimal magnesium levels increase with age.2,3 Supports healthy memory and cognitive function In a randomized placebo-controlled trial in 44 adults aged 50-70, the group receiving a daily dose of 1.5 to 2 grams of magnesium L-threonate showed markedly improved cognitive and executive function in just 12 weeks.4 Just Three Capsules a Day A single bottle of Neuro-Mag® Magnesium L-Threonate contains 90 vegetarian capsules, enough for a one-month supply. The suggested daily dose of three capsules provides 2000 mg of magnesium L-threonate, Life Extension's customer favorite for memory and cognitive health support.