Vitamin D deficiency is very common and easily treatable. Typically, doctors prescribe a high-dose Vitamin D3 (cholecalciferol) supplement, often taken weekly for 8 to 12 weeks to quickly restore levels. After this initial phase, a lower daily maintenance dose of Vitamin D3 (usually 800 to 2,000 IU) is recommended. Sometimes, calcium supplements are also suggested to support bone health. Your father will likely need a simple blood test after a few months to monitor his progress. I highly recommend consulting his doctor to get the exact dosage tailored to his specific levels and health needs.
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My father has been diagnosed with a vitamin D deficiency. What medicines or supplements should he take to treat this?