Vitamin D is one of the main nutrients that support human health.
Researches have shown that vitamin D deficiency is closely linked to common chronic diseases, such as bone metabolic disorders, tumors, cardiovascular disease, diabetes, neuropsychiatric disorders and autoimmune diseases.
In healthy people, the active form of vitamin D is produced by the kidneys, but in renal failure, the production of active vitamin D is reduced, which can lead to low levels of calcium and high levels of parathyroid hormone in the blood. Even in the early stages of chronic kidney disease the level of active vitamin D. is reduced. Its deficiency affects a number of processes in the human body and causes a significant number of pathological conditions. Vitamin D should be given according to serum calcium, phosphorus and parathyroid hormone levels. Due to improper metabolism and losses caused by dialysis, supplements of aqueous solutions of vitamins are recommended. In patients with chronic kidney disease, especially in advanced stages, vitamin D medications (vitamin D3 and vitamin D2) are not recommended, because the reduced kidney tissue may not be able to process them in sufficient quantity as it is supposed to be.
On the other hand, the correct dosage of vitamin D helps to treat a number of diseases and improve overall health. It protects against cardiovascular disease, successfully fights depression, has antiviral function, suppresses the development of autoimmune diseases such as diabetes, rheumatoid arthritis, multiple sclerosis, psoriasis, and helps destroy cancer cells in the body.