Vitamin D3 (cholecalciferol)
First of all, cholecalciferol is responsible for the metabolism of calcium and phosphorus in the body, and also prevents the development of rickets.Vitamin D3 helps children's bones and skeleton grow strong.Also regulates stable muscle tone, myocardial function, and affects blood clotting.Doctors often recommend it to women during menopause to prevent osteoporosis and "smooth out" hormonal imbalances.During pregnancy, vitamin D3 is responsible for the formation of the bone skeleton.It is also prescribed in the treatment of hypocalcemic tetany, osteomalacia and bone diseases, spasmophilia.Another member of the vitamin D group, ergocalciferol (D2), performs a similar function in the body.True, it is not synthesized under the influence of ultraviolet light, but enters the body with plant foods.And in addition, D2 is poorly absorbed in the body.
Deficit
Vitamin deficiency in children causes rickets.In adults, impaired calcium and phosphorus metabolism leads to osteoporosis, increased risk of cancer and cardiovascular disease.Early warning signs of sun vitamin deficiency: unexplained weight gain, psoriasis, and other skin rashes.A person gets sick often because his immune system is weakened.Attention and concentration problems begin, muscle withdrawal occurs, and insomnia.Almost one in five people on the planet is vitamin D3 deficient.Russia is in a low insolation zone (sunlight exposure), so almost everyone is at risk.
Excess
Too much vitamin D is very dangerous. In adults, it manifests itself with nausea, vomiting, itching of the skin, pain in the head and eyes, diarrhea, increased urination, as well as the deposition of excess calcium in soft tissues, in the liver, kidneys, lungs, heart and blood vessels.
Sources of Vitamin D3 (cholecalciferol)
Food sources of cholecalciferol include salmon, oily fish, butter, cheese, egg yolk, caviar, chanterelles, yeast, liver, meat, corn oil, and so on.You can get a dose of vitamin D3 directly from the sun.Cholecalciferol has its own provitamin (7-dehydrocholesterol), which is formed in the skin by sun exposure.When heated, it converts to cholecalciferol and enters the blood and liver.Foggy weather reduces the formation of provitamin D3 by more than half (60%).Vitamin D3 is also produced in a tanning bed, but frequent exposure is fraught with cancer..
Best sources % of daily norm per 100g of product
Interesting!
In the first half of the 20th century, an American biochemist obtained a patent for ultraviolet irradiation of milk and other foods.This was done in order to enrich the food with the \"sunshine\" vitamin that prevents rickets.It was about cholecalciferol (D3), a compound that is synthesized under the influence of ultraviolet light and comes into the body with food.