The sunshine vitamin for the whole family. Natural vitamin D3 supported by organic virgin olive oil, first cold pressed, for optimal bioavailability; Essential for immunity and maintenance of normal bone structure; D-NAT 1000 provides 1000 IU* (25 µg) of natural vitamin D3 per drop, in a natural and bioavailable form. Vitamin D is essential for the correct activity of the cells of the immune system. Essential for bone health, necessary for growth, mineralization and bone development, it acts on the absorption of calcium and phosphorus. Vitamin D is involved in muscle function and also plays an important role in cell division. For its formula that contains vitamin D of natural origin, in oily form for better absorption. Very easy to use, this natural solution is suitable for most people at 1,000 IU* per drop. Tips for use: 1 drop a day on a food support or directly on the tongue, for a minimum of 1 month. Repeat if necessary.