to vitamin D group include several vitamins, but modern medicine is allocated only 2 of them have labeled D2 and D3, respectively, bearing the name of ergocalciferol and cholecalciferol.Vitamin is fat-soluble, it is not soluble in water and does not undergo degradation when exposed to high temperatures.Consider what is needed vitamin D, which occurs in the case of excess or deficiency of the vitamin, what effect it has on the body and what foods you can find vitamin D.
Why do we need vitamin D
main task, which requires vitaminD is to help the body process calcium absorption to occur correct formation of teeth and bones, and that they are healthy.How strong is our skeleton, bones form correctly - directly depends on the content of vitamin D. This is especially important for women because their body loses a large amount of calcium during childbearing and breast-feeding him.With a shortage of vitamin D in women with age may develop osteoporosis, a very dangerous disease, which is characterized by thinning of the bones and their fragility.The development of the disease occurs gradually, due to its even minor injuries can lead to fractures.
very important vitamin D is to human muscle, for their ability to withstand the load and give them strength.In addition, vitamin D enhanced resistance to the development of skin diseases, such as psoriasis.Thanks to it is prevented the risk of cancer and cardiovascular diseases.
also directly dependent on whether a body rate of vitamin D is the normal functioning of the thyroid gland, the state of the shells that protect nerve cells, blood clotting.
products containing vitamin D
vitamin D rich in fish, especially cod and halibut.But he also found in waterfowl belonging to other species: tuna, herring, mackerel and mackerel.The highest concentration of vitamin D has a fish liver.
Foods containing vitamin D include dairy products: cheese, butter, cottage cheese, fermented baked milk, yogurt.Good source of vitamin E are vegetable oils, egg yolks, pork and beef liver.
minor amounts of vitamin D have products with vegetable origin:
should not forget that health is not enough supply of vitamin D from food only, you must hold a sufficient amount of time in the sun, so it is possible to have vitamin synthesized in the body in the right amounts.
Lack and excess vitamin D
with vitamin D should be careful, because in the event of an overdose or lack of developing osteomalacia.In addition, the possible weakening of immunity, impaired heart function, blood pressure instability, the development of multiple sclerosis, leukemia, prostate cancer and ovarian cancer.
With a shortage of vitamin D is marked softening of the bones and the development of rickets, which is a major feature.Other signs of hypovitaminosis include loss of appetite, weight loss, sleep disturbance, anxiety, blurred vision, burning sensation in the throat and mouth, diarrhea, sweating scalp.
In the case of a lack of vitamin D may develop severe disease - Crohn's disease, which is characterized by intestinal damage, is its inflammation in all departments, there is the emergence of multiple ulcers, and the complications may be irreversible: the restriction, cracks, abscesses, bleeding.
Too long-term treatment in the case of the appointment of vitamin D in large doses may cause hypervitaminosis, which is manifested by loss of appetite, nausea, diarrhea or constipation, pain in muscles and joints, headaches, high blood pressure, difficulty breathing and other problems withhealth.