Magnesium Glycinate: The Science of Superior Sleep, Relaxation & Recovery Dr. Serena Caldwell, RD Registered Dietitian & Clinical Nutrition Researcher Board-certified RD with a Doctorate in Nutritional Biochemistry and 12+ years of clinical research in sports nutrition and supplement efficacy. Lead nutrition reviewer at Ryzo Labs. RD Certified PhD Nutrition Medically Reviewed Shop Ryzo Labs Magnesium Glycinate Experience deep relaxation and restful sleep with Magnesium Glycinate. High-absorption support for stress, recovery, and muscle relaxation. In our modern, high-stress world, getting a good night's rest often feels like a luxury. Between blue light exposure and demanding schedules, our nervous systems are rarely in "rest and digest" mode. Enter Magnesium Glycinate —the most bioavailable and gentle form of one ...