A UNIQUE WAY TO SUPPORT IMMUNE HEALTH: Nature’s Bounty Advanced D3 with Magnesium provides a potent combination of Vitamin D3 and Magnesium; Magnesium assists in optimizing Vitamin D levels in the body to support immune health (1) | HIGHLY BIOAVAILABLE FORMS: Each serving contains 6300 IU of Vitamin D3 plus 100 mg of Magnesium as Magnesium Citrate—both superior forms for absorption and bioavailability (2) | CONVENIENT ONE-PER-DAY FORMULA: Just one tablet per day provides support for immune health; neuromuscular health and function; bone health; exercise recovery and cellular energy metabolism (1) | QUALITY IS OUR PRIORITY: Nature’s Bounty Advanced D3 with Magnesium Citrate Immune Formula is non-GMO; gluten-free; lactose-free; and contains no artificial colors or sweeteners | FROM THE TRUSTED WELLNESS EXPERTS: Nature’s Bounty Advanced D3 with Magnesium Citrate Immune Formula is a product of 50 years of dedication to quality; consistency; and scientific research to make excellent vitamins and nutritional supplements