Excessive Vitamin D Supplementation Linked to Toxic Blood Condition Risk
During the winter months, many Americans turn to vitamin D supplements to compensate for reduced sun exposure, which naturally aids in vitamin D production. However, excessive intake of these supplements can lead to hypercalcemia, a condition characterized by elevated calcium levels in the blood. This can result in serious health issues such as kidney failure, abnormal heart rhythms, and even coma. The Mayo Clinic notes that while vitamin D toxicity is unlikely from food or sun exposure, over-supplementation poses significant risks. The Cleveland Clinic advises against consuming more than 4,000 international units of vitamin D daily, as higher doses can lead to hypercalcemia, affecting 1-2% of the population.