Tag: Serum levels

The typical normal range for a vitamin A blood test is 20 to 60 micrograms per deciliter (mcg/dL) or 0.69 to 2.09 micromoles per liter (µmol/L) in adults. This test, also known as a serum retinol test, measures the active form of the vitamin in your bloodstream to determine if your levels are sufficient.

According to a recent National Health and Nutrition Examination Survey, a significant portion of the U.S. population has inadequate vitamin D levels, highlighting widespread deficiency risks. Understanding what is the target level of vitamin D is crucial for maintaining good bone density and overall health, as expert guidelines vary and have been a subject of extensive debate.