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Life is everything. Let's make it a healthy one!

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Life is everything. Let's make it a healthy one!

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Life is everything. Let's make it a healthy one!

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What Is Vitamin A Measured In RAE & What Foods Can I Find It In?

Vitamin A is the name of a group of fat-soluble retinoids, like retinol, retinal, and retinyl esters. There are two forms of vitamin A are available in our diet: preformed vitamin A and provitamin A carotenoids.

RAE is a measurement of counting bio-activities of vitamin a in foods.

Vitamin A is an essential nutrient that cannot be synthesized in our body.


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Vitamin A Is Essential

Vitamin A is not just one vitamin. It is the name of a group of fat-soluble retinoids, like retinol, retinal, and retinyl esters. (source )

Vitamin A is an essential nutrient that cannot be synthesized in the body. Therefore, must be obtained through diet. (source )

What is RAE?

RAE stands for Retinol Activity Equivalents. It’s a measurement to count the different bio-activities of retinol and provitamin A-carotenoids in foods.

IU, international units is another measurement. RAE can only be converted into IUs if the source or sources of vitamin A are known. (source )

What Vitamin A Measured In RAE Means

Vitamin A measured in RAE, means the amount of vitamin A that we can obtain from a certain amount of calories. The daily value for vitamin A (RAE) is 400 micrograms.

RAE is one retinol activity equivalent. One retinol activity equivalent (RAE) is the amount of Vitamin A needed to raise serum retinol by 0.1 μmol/L.

This is a good reference to use when comparing the amount of Vitamin A in your body to the RDA.

RDA stands for recommended daily allowance. This is the amount of Vitamin A in a daily diet that is needed to maintain good health.

Two Forms Of Vitamin A

Two forms of vitamin A are available in the human diet: preformed vitamin A and provitamin A. (source )

Preformed vitamin a

Preformed vitamin A is found in foods from animal sources, dairy products, fish, and meat. (source )

The most common preformed vitamin a is retinol, which is also called vitamin A1.

Provitamin A-carotenoid

Provitamin A carotenoid and is found in fruits and vegetables. The most abundant provitamin A is beta-carotene. Examples of other provitamins A-carotenoids are alpha-carotene and beta-cryptoxanthin. (source )

The bioavailability of provitamin A-carotenoids in fruit and vegetables is lower than once believed. It is difficult to fulfill the daily requirements through plant foods alone. (source )


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Toxicity Of Vitamin A

A high intake of vitamin A supplements over a prolonged period can lead to toxicity. Toxicity from food sources is rare. Supplementation should be used only periodically. (source )

Foods You Can Find Vitamin A, RAE In

You find Vitamin A, RAE mostly in fats and oils, beef, lamb, veal, game, and poultry products.

Examples of food sources include

  • Cod Liver Fish Oil
  • Beef Liver
  • Veal Liver
  • Lamb Liver
  • Domesticated Duck
  • Turkey Liver
  • Goose

Foods in our nutrition tool

You can find regularly updated top-ranked lists of foods for over 200+ nutrients in our nutrition tool.

If you are interested in what foods contain the most Vitamin A, RAE we recommend you visit our tool.

Here's our top-tanked list of foods that contain Vitamin A, RAE.

Sara Niemelä

co-founder Care Omnia, Head Content Creator




Sara
Niemelä

Nutrition is my passion. I've spent thousands upon thousands of hours reading, analyzing, categorizing and comparing research studies.

I’m a wife and a mother of three. I enjoy the outdoors, cooking, and spending time with my family.