Symbols, names, and functions of vitamin D metabolites
| Name or symbol | Other name, symbol, function |
|---|---|
| 7-dehydrocholesterol | Provitamin-D3 converted into cholecalciferol in the skin after UVB ray exposure |
| Cholecalciferol | Vitamin D3 – vitamin D of animal origin, formed in human skin |
| Ergocalciferol | Vitamin D2 – vitamin D of plant and mushroom origin |
| Calcifediol | Calcidiol; 25-hydroxycholecalciferol; 25(OH)D3; 25-hydroxyvitamin D – vitamin D prohormone formed in the liver from cholecalciferol, long half-life in blood plasma, helps to detect vitamin D deficiency and excess |
| 25(OH)D | The sum of isoform 25(OH)D3 and 25(OH)D2 |
| Calcitriol | 1,25(OH)2D; 1,25-dihydroxyvitamin D – active form of vitamin D in the function of hormone, formed in the kidneys |