Fenioux Vitamin D3 Fluide 2000 IU 20 ml

Nutrition and Supplements Vitamins and minerals Fenioux Vitamin D3 Fluide 2000 IU 20 ml Food supplement that contributes to the correct absorption of calcium and the functioning of the immune system. Vitamin D is a prohormone, so it does not have hormonal activity by itself, but it is converted to the active hormone (calcitriol) through a highly regulated synthesis mechanism. The synthesis of cholesterol in the liver through Acetyl CoA is the first step, after several complex changes an intermediate called 7-dehydrocholesterol is reached. When UV rays come into contact with the skin, this 7-dehydrocholeserol undergoes transformations, producing vitamin D3. This vitamin D3 is not biologically active, therefore it must undergo two hydroxylations: the first in the liver forming 25-hydroxycholecalciferol (calcidiol) and the second in the kidney forming 1,25-dihydroxycholecalciferol also called calcitriol (active form). How to use: - Children under 10 years: 2 drops day. - Adults and adolescents 5 drops day.