Vitamin D3 not only benefits the immune system, but also plays an important role in the transport of calcium from the blood to the bones and teeth. Therefore, people in a period of rapid growth and the elderly, whose bones and muscles may weaken, should pay special attention to its sufficient supply and take higher doses.

Adequate intake of vitamin D3 helps ensure proper bone mineralization and proper muscle function. In addition, vitamin D3 deficiency can lead to depressed mood, especially during periods of gray, rainy days. That's why it's a good idea to ensure proper supplementation from the last months of summer to build a solid immune shield for the coming autumn and winter period.