Support your immune health with Nature’s Bounty Advanced D3 + Magnesium Citrate Immune Formula.* Containing a potent combination of Magnesium and Vitamin D, our innovative two-in-one formula utilizes the superior forms of each  – Vitamin D3 and Magnesium Citrate – for better absorption and bioavailability. ◊ Magnesium assists with converting Vitamin D to its active form, which helps to support a healthy immune system.* It is also an important bone health supplement, playing a key role in the body’s muscular reactions and cellular energy metabolism. * Vitamin D supports immune health and is vital for neuromuscular health and function, bone health, and exercise recovery.* Each tablet of Nature’s Bounty Advanced D3 + Magnesium Citrate provides 6300 IU of Vitamin D3, plus 100 mg of Magnesium as Magnesium Citrate to help optimize Vitamin D levels.* For those with specific dietary and lifestyle needs, Nature’s Bounty Advanced D3 + Magnesium Citrate Immune Formula is non-GMO, gluten-free, lactose-free, and contains no sugar, sodium, or artificial colors and sweeteners.