Vitamin D2 is formed from cholesterol, but via a different route and it is vegetable.
Vitamin D2 and D3 have the same biological effect. Therefore, vitamin D2 is often used as a food supplement.
The development of the skeleton, particularly the phosphate and calcium metabolism, vitamin D is necessary. The effect of vitamin D is dependent on the presence of pantotheenzuurcomplex. Lack of vitamin D leads to different rachitic, or rickets-like changes of the skeleton. The basis of the disorder lies in the processes in the growth of cartilage.