Vitamin D Impact Factor
Vitamin D deficiency, especially seen in Western populations, can lead to serious
health problems.
Vitamin D is a group of
steroids that are
hormones and
hormone precursors because they can be synthesized in the appropriate biological conditions which is one of the vitamins that are soluble in fat. The main task of
Vitamin D is to provide the mineral balance in our bodies. It regulates the metabolism and absorption of minerals and determines serum calcium and
phosphorus levels. The target organs that vitamin D affects are the kidneys, small intestines, and bone. In these organs, the effect is caused by the active form of calcitriol.
Vitamin D deficiency causes rickets disease in children and osteoporosis in adults.
Vitamin D Resources and Metabolism
Vitamin D has two sources, cholecalciferol (Vitamin D3 ) and ergocalciferol (Vitamin D2 ). Cholecalciferol is derived from 7-dehydrocholesterol by the action of sun (UV) rays and is the main source of Vitamin D. Ergocalciferol, which we call Vitamin D2 , is derived from foods. Since they have similar metabolisms, they are both called D vitamins. Dietary uptake of vitamin D2 is limited.
Vitamin D in foods is mostly found in fatty fish
species such as salmon (salmon fish), mackerel, tuna fish, sardine and also in nutrients such as egg yolk, milk, broccoli, green onion, parsley water terrace. But no food contains vitamin D until it supplies the daily vitamin D requirement. In the breast
milk there is vitamin D of 10-60 IU/L. In America and some European countries, milk, yogurt, orange juice, and cereals are enriched with Vitamin D. Dietary or endogenously synthesized Vitamin D2 or D3 is stored in fat
cells and circulated if necessary.
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