Vit D3 tablets contain 10 µg (400 IU) of vitamin D3, which is the recommended daily intake in accordance with the European national recommendations of doctors. Their use is recommended for preserving the health of bones and teeth, prevention of osteoporosis and proper function of the immune system and muscles. They can also be used preventively during the autumn and winter months, as well as for people who are not sufficiently exposed to sunlight, regardless of the time of year. Usage: It is recommended to take 1 tablet daily with a meal.