
Overdosed Vitamin D Sends Man to ER With Vomiting and Tinnitus
A middle-aged man developed hypervitaminosis D after taking about 150,000 IU of vitamin D daily from more than 20 supplements under a nutritionist’s plan, leading to vomiting, diarrhea, tinnitus, weight loss, and kidney issues. He was hospitalized for eight days, treated with IV fluids and bisphosphonates to lower calcium. Although calcium normalized, vitamin D levels remained high. The case, reported in BMJ Case Reports, underscores the risk of toxicity from excessive supplement use—even for a vitamin generally considered safe.

