Vitamin D helps the body absorb calcium and phosphorus, which are essential for bone growth.
In addition to its building function, the vitamin has a protective function: it reduces the growth of cancer cells, helps the immune system fight infections, and reduces the severity of inflammatory processes.
Where is it contained
The main sources of vitamin D are raw egg yolk, fermented milk products, cheese (cottage cheese), butter, fish liver, and seafood.
The greatest amount of vitamin D is found in the liver of cod and halibut, herring, mackerel, tuna, and mackerel.
Large amounts of vitamin D are found mainly in animal foods: fatty fish (salmon, catfish, mackerel, sardines, tuna), fish roe, egg yolk and dairy products.
Also, small amounts of it are found in red caviar, oysters, forest mushrooms and seeds.
What can cause vitamin D deficiency
With a vitamin D deficiency, less calcium and phosphate are absorbed into the body.
Because the amount of calcium and phosphate is insufficient to maintain healthy bones, vitamin D deficiency can lead to bone damage called rickets in children and osteomalacia in adults.
Why do vitamin D levels drop
Vitamin D deficiency is most often caused by lack of exposure to sunlight.
Certain diseases can also cause this deficiency.
The most common cause is lack of exposure to sunlight, usually when there is not enough vitamin D in the diet, but certain diseases can also cause deficiency.
