Vitamin D may play a role in keeping our lungs healthy, with higher concentrations of vitamin D resulting in optimal effects on lung function and respiratory health.*. Some research has linked sufficient vitamin D levels and heart health, further emphasizing the importance of optimal levels of vitamin D in your body and Vitamin D also contains vitamin K2 to help support healthy blood vessels for normal blood flow.*. Clinical study conducted by scientists showed that individuals taking the Vitamin D are six times more likely to have vitamin D in the optimal range.*. Vitamin D supports an already healthy, balanced immune system through its key role in regulation and differentiation of immune system cells.*. Vitamin D is necessary for normal bone mineralization and growth and Vitamin D is a safe, effective way to get 2,000 IU of this critical nutrient.*.

Best Sellers Rank: See Top 100 in Health & Household. Product Benefits: Health,Healthy Immune System. Flavor: Unflavored. Primary Supplement Type: Vitamin K2. Item Form: Tablet. Brand: USANA. : B01AVIZCTE. Manufacturer: USANA. Date First Available: February 6, 2016. Package Dimensions: 3.11 x 1.57 x 1.42 inches; 1.13 Ounces.