Vitamin D1 is a form of D, a compound discovered in 1914 in cod liver oil. The substance is a molecular combination of ergocalciferol and lamisterol in a ratio of 1:1, which enhances the absorption and exchange reactions of calcium and phosphorus.
Today there are 5 forms of biologically active compounds similar in function and chemical structure:
- D1 – ergocalciferol + lamisterol;
- D2 – ergocalciferol, formed directly from ergosterol;
- D3 – cholecalciferol, produced from 7-dehydrocholesterol;
- D4 – 22-dihydroergocalciferol;
- D5 – sitocalciferol, produced from 7-dehydrositosterol.
Substances D2 and D3 are of real value to the human body, but the role of vitamin D1 should not be underestimated.
Importance of the “sunshine” vitamin
D1, like other D vitamins, regulates the level of calcium and phosphorus in the human body, promotes the full development of bone and muscle tissue. With a sufficient amount of vitamin, normal bone growth occurs in children, the risk of rickets and osteoporosis is reduced.
Sources of vitamin D1
The compound does not occur in nature in its pure form and can only be obtained by chemical synthesis.
The RDA for vitamin D1 is 10 micrograms, with an upper limit of 50 units.
Recent studies on the biological role of the compound have led to the conclusion: deficiency of the substance in women increases the risk of adverse pregnancy outcomes, reduces the birth rate.
- Wikipedia (the free encyclopedia) – Vitamin D