Vitamin D is a fat-soluble vitamin and is one of the 24 micronutrients essential for the functioning of the human body. It is formed from cholesterol under the influence of UV light when exposed to the sun, but a sufficient amount of vitamin D is formed only at a UV index of 3 or more, which in our geographical area means somewhere from the end of March to September. Vitamin D is important for the normal functioning of the immune system, plays an important role in the absorption of calcium and phosphorus and thus contributes to healthy bones and teeth, is important for proper muscle function and participates in cell division. In Minka Vitamin D3, D3 is in the form of cholecalciferol, which is very well absorbed by the body.