What is the recommended normal range for vitamin D status in ng/mL?

The recommended normal range for vitamin D status is considered to be between 30 and 80 ng/mL. This range is important as it reflects sufficient levels of vitamin D necessary for optimal bone health, immune function, and overall well-being. Vitamin D plays a crucial role in calcium absorption and bone metabolism, making it essential for athletes and active individuals who may have increased needs for this nutrient due to physical activity and exposure to sunlight variability. Levels below 30 ng/mL may indicate insufficiency, potentially leading to negative health outcomes, such as weakened bones or impaired immune responses. Conversely, excessively high levels (typically above 80 ng/mL) can also be harmful, potentially leading to toxicity. Therefore, the choice indicating a range of 30 to 80 ng/mL is based on current clinical guidelines and research related to maintaining adequate vitamin D status for health and performance.