Thorne's Magnesium Bisgylcinate is a well absorbed form of magnesium and NSF Certified for Sport®. Magnesium is essential for the health of the heart and blood vessels, brain, bones, skeletal muscles, lungs, and pancreas. As a cofactor for more than 600 enzymes, magnesium supports numerous mechanisms of action. Lightly sweetened with Monk Fruit and a hint of citrus. Because an athlete needs to know that his or her supplements are trustworthy and compliant, every batch of an NSF Certified for Sport® product is tested for compliance with label claims and to ensure the absence of more than 200 substances banned by many major athletic organizations, including stimulants, narcotics, steroids, diuretics, beta-2 agents, and masking agents.Thorne's logo, text, trademarks, graphics, videos and photo images are the property of Thorne and are used with permission. Copyright © 2023*FDA Disclaimer: The information about this product and statements made are provided by the manufacturer, except customer reviews which are not evaluated. See www.thorne.com for information about the relationship between this product and any claims made. Results may vary from person to person based on body size and other factors, and the effectiveness is not guaranteed for you. Always seek the advice of your healthcare professional about taking dietary, nutritional, herbal or homeopathic supplements.