Vitamins stored in adipose tissue are not available to the body for utilization. People with more fat tissue should increase their vitamin D intake because only free vitamin D may be activated and used in the body.

Although the body has the possibility of vitamin D storage, in order for toxic effects to appear, it would be necessary to take a daily dose of 50 000 IU for several months.

Vitamin D intake is recommended to all age groups. Although in clinical practice vitamin D was intended for infants and elderly people, new studies have shown that all age groups need to take vitamin D in the months (from October to April) when sun exposure is insufficient in order to prevent chronic vitamin D deficiency present in over 40% of the population.

Vitamins D and C and minerals zinc and selenium contribute to the normal function of the immune system.

Vitamin D and zinc contribute to the maintenance of normal bones and skin and to normal muscle function.

Vitamin D contributes to the maintenance of normal teeth.

Selenium and zinc contribute to the maintenance of healthy and normal skin and nails.

Vitamin C contributes to normal collagen formation for the normal function of bones, cartilage, gums, skin, and teeth.