Since 2005, Jigsaw Health — aka. “The Magnesium People” — have been developing science-based dietary supplements, including MagSRT®, America’s #1 Time Release Magnesium Supplement.

In 2018, MagSRT® was evaluated in the Scottsdale Magnesium Study, a placebo-controlled, human clinical trial of 91 participants, published in the peer-reviewed Journal of the American College of Nutrition.