Swanson ® D3 is a food supplement with a high content of vitamin D enclosed in gelatin-coated capsules. The formula has been developed to supplement the daily diet of adults, especially people over 75 years of age. Swanson® Vitamin D3 4000 IU in capsule Each Swanson® brand capsule contains up to 4000 IU of vitamin D, a fat-soluble vitamin. The capsules are filled with oil obtained from flax seeds. This ingredient serves as a carrier in the product, which allows the proper distribution of vitamin D in the body. Vitamin D - how does it work? It contributes to the proper functioning of the immune system. It helps in the proper absorption of calcium and phosphorus from the digestive tract and in maintaining the proper level of calcium in the blood. Supports the maintenance of healthy bones and teeth. It is necessary for the proper functioning of the muscles. In addition, vitamin D helps reduce the risk of falls associated with postural instability and muscle weakness. Falls are a risk factor for bone fractures in men and women age 60 and older. The beneficial effect occurs when 20 μg of vitamin D from all sources is consumed daily. Swanson ® D3 dietary supplement packaging contains 90 capsules, which will provide 3 months of supplementation for an adult.