Be careful if you use it incorrectly!
Internal Medicine Specialist Dr. Semiha Ayaydın Kaplan, drawing attention to the fact that vitamin D use can lead to serious health problems when done outside of a doctor's supervision, said, "The widespread use of vitamin D supplements along with treatments aimed at managing chronic diseases and taking them in incorrect doses can bring about serious risks such as hypercalcemia, kidney stone formation and heart rhythm disorders."
Drawing attention to current information shared by international studies, Specialist Dr. Ayaydın Kaplan said, "Consuming more than 4,000 IU of vitamin D per day can cause such health problems in the long term. The European Food Safety Authority (EFSA) has determined the daily upper tolerance limit for adults as 100 micrograms (4,000 IU). The UK National Health Service (NHS) also draws attention to the side effects reported, especially due to unprescribed and uncontrolled high-dose use."
IT CARRIES RISKS FOR KIDNEY AND HEART HEALTHSpecialist Dr. Ayaydın Kaplan, referring to the fact that excessive vitamin D use causes hypercalcemia, said, “This is a condition characterized by an increase in the amount of calcium in the blood caused by excessive vitamin D intake. In this case, nausea, vomiting, frequent urination, muscle weakness and heart rhythm disorders are frequently seen. High calcium levels trigger kidney stone formation in the long term and pave the way for complications such as nephrocalcinosis. This can lead to a significant decrease in kidney function tests.”
Dr. Ayaydın Kaplan warned against incorrect dosage and stated the following: “Supplements over 4,000 IU per day, especially when taken without a doctor’s supervision, may improve bone health while also negatively affecting kidney and heart functions. Long-term high-dose use may disrupt calcium balance and cause systemic complications.”
According to Kaplan, he listed the following points to consider in order to prevent such health problems: "The blood vitamin D (25‑OH‑D) and serum calcium levels of individuals using vitamin D should be monitored regularly. Supplemental dosing should definitely be done under the supervision of a doctor. Total vitamin D amount should be calculated by taking into account diet and sun exposure."
VITAMIN D TREATMENT SHOULD BE MANAGED UNDER THE CONTROL OF A PHYSICIANEmphasizing that it is important to first stop vitamin D supplements in individuals detected to have overdosed, Specialist Dr. Kaplan said, "If necessary, fluid support should be started. In cases of severe hypercalcemia, drugs with active ingredients such as diuretics, corticosteroids or bisphosphonates may be preferred. These treatment protocols should definitely be applied with a physician's decision. Vitamin D deficiency is a widespread health problem that needs to be solved. However, the dosage of supplements taken for support purposes should be meticulously evaluated in terms of health. Taking vitamin D under the supervision of a doctor prevents complications that may occur in the kidney, heart and skeletal system in the long term."
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