Vitamin A


This test is used to evaluate the amount of Vitamin A in the blood.


We have twice as many Vitamin A receptors than Vitamin D receptors. Vitamin A is needed for growth and for strong teeth and bones, as well as for healthy skin and for eye health. Sources of Vitamin A are liver, dairy products, fish liver oils, dark green and yellow-orange vegetables and in some fruits.

Detailed Information:
Vitamin A is an oil- soluble vitamin also known as retinol. Beta Carotene is not actually a vitamin. It is a precursor of Vitamin A. Vitamin A has specific maintenance roles in our body and carotenoids such as beta carotene are stored in reserves and are easily converted into Vitamin A. Research shows that beta carotenes also act as antioxidants. Vitamin A supports vision, skin growth and repair, bone growth as well as protection from diseases such as cancer, macular degeneration, atherosclerosis and Alzheimer’s Disease. Deficiencies can be caused by lack of Vitamin A in the diet, malabsorption problems such as diarrhea or fat malabsorption & problems with recurrent infections. Insufficient levels of vitamin A are a major nutritional problem throughout the world to include the United States. Vitamin A is present in liver, fish liver oils, dairy products, dark green and yellow-orange vegetables, and in fruits. Beta-carotenes are antioxidants that protect cells against oxidative damage that predisposes cellular balances that may lead to inflammatory processes such as caner. Carotenoids, including beta-carotene are very low in people with Alzheimer’s disease. Carotenoids are found in dark colored fruits and vegetables.

Test Preparation for Optimal Results:
For optimal results, please fast a minimum of eight hours. No foods containing vitamin A should be eaten 48 hours prior to the lab test.

Your health care provider should evaluate a deviation from normal ranges.

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