Support your active lifestyle with Vitamin D3 which helps to maintain muscle function and keep your bones healthy. Each capsule from Swanson Health is packed with 25µg of vitamin D and also helps to support the immune system - especially handy in the winter months when your natural vitamin D intake may be low due to less sunshine. Support your active lifestyle with Vitamin D3 which helps to maintain muscle function and keep your bones healthy. Each capsule from Swanson Health is packed with 25µg of vitamin D and also helps to support the immune system – especially handy in the winter months when your natural vitamin D intake may be low due to less sunshine. 25µg of vitamin D per capsule. Helps maintain muscle function. Helps maintain healthy bones. Supports a healthy immune system. Consider using during periods of reduced exposure to sunlight. 60 or 250 capsules per pack Want to boost your vitamin D levels? High Potency Vitamin D provides 1000IU of vitamin D per capsule which aids the normal function of your bones! Read more!