LOGUS D is a food supplement based on Vitamin D3 useful to provide a supplementation of these nutrients in the dailu diet. Moreover, Vitamin D3 contributes to maintain healthy bones and normal muscle function, favour normal absorption and use of calcium and phosphorus and healthy functioning of the immune system. Common causes of vitamin D deficiency include genetic defects in the vitamin D receptor, severe liver or kidnet disease and insufficient exposure to sunlight. Vitamin D plays an important role in the regulation of parathyroid hormone (PTH). It promotes renalreabsorption of calcium and increases intestinal absorption of calcium and phosphorus. The recommended dose is one capsule per day for adult, or as prescribed by your physician.