Tag: Polycythemia

According to the World Anti-Doping Agency (WADA), the misuse of erythropoietin (EPO) can increase red blood cell mass, which thickens the blood and leads to a significantly higher risk of deadly diseases like stroke and heart attack. Understanding how much EPO is too much is critical for patients, athletes, and anyone concerned about this powerful hormone's effects.

According to the NIH, about 33% of US children and adults are at risk for vitamin D deficiency, a condition often associated with lower hemoglobin levels and anemia. However, a less common concern is whether the reverse is true: **Can vitamin D supplements cause high hemoglobin?** This article explores the current scientific understanding of this complex relationship.