Vitamin D3 is a supplementary equivalent of vitamin D produced by the skin, the level of which in the body depends on daily exposure to sunlight. Providing a sufficient amount of vitamin D is important for the proper growth and development of bones and teeth, as well as for improving the functioning of the immune system.Vitamin D regulates the calcium and phosphate metabolism, which has a direct impact on bone mineral density. It increases the absorption of calcium and phosphorus, stimulates bone-forming cells and regulates bone mineralization. It also increases the strength of skeletal muscles and the effectiveness of physical exercises.Deficiency in children leads to rickets and tooth development disorders. In adults, it may lead to insufficient saturation of bones with calcium and osteoporosis, and thus to an increased risk of fractures and difficulties with bone fusion.Regular D3 supplementation:- Supports the immune system- Strengthens the health of bones and teeth- Contributes to the proper functioning of muscles- Improves absorption calcium and phosphorus- Helps maintain appropriate calcium levels in the blood COMPOSITION:Sunflower oil, cholecalciferol (vitamin D3), Gelatin, humectant: glycerol.Ingredients1 capsuleVitamin D (cholecalciferol)       100 µg = 4000 IU  (2000% RWS)Supplement dedicated to older people, over 75 years of age. People taking medications should consult a doctor or pharmacist before use. Not recommended for children, pregnant and breastfeeding women. Before use, it is advisable to perform a 25-(OH)D blood test and consult the test result with a doctor or pharmacist. HOW TO USE:1 capsule a day. Swallow the capsule and drink plenty of water after a meal containing fat. CONTRAINDICATIONS:Do not exceed the recommended daily dose. Dietary supplements cannot be used as a substitute for a varied diet.STORAGE METHOD:Store in a dry and cool place, out of the reach of small children.