Tag: Vitamin a levels

The human body stores excess fat-soluble vitamin A, including retinyl palmitate, primarily in the liver, which can lead to toxicity if consumed in excessive amounts over time. Understanding the appropriate levels is therefore crucial for both dietary intake and topical application.

The World Health Organization reports that vitamin A deficiency affects an estimated 190 million preschool-age children worldwide. The gold standard for assessing vitamin A levels is a liver biopsy, but this invasive method is not practical for routine clinical use. A variety of other tests, including blood work and dose-response assays, are commonly used to accurately measure vitamin A levels and determine an individual's nutritional status.

According to UCSF Health, normal vitamin A levels in the blood range from 20 to 60 micrograms per deciliter (mcg/dL). Understanding **what is the normal range for vitamin A** is essential for monitoring your health, as both insufficient and excessive levels can have serious consequences.