What is the definition of vitamin A.

Vitamin A

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Also: Retinol

Vitamin A is a fat-soluble vitamin that is important for vision, growth, the function of the immune system, reproduction and the mucous membranes.

Important Signs one Vitamin A deficiency are night blindness and dry or flaky skin and mucous membranes. A vitamin A deficiency, which in extreme cases can even lead to blindness, is widespread in emerging countries in contrast to (post) industrialized countries. An overdose of vitamin A can damage the liver and promote cancer.

The Vitamin A requirements of humans is well covered by foods of animal origin, especially cod liver oil and liver. Carotenoids, a vitamin A precursor, also known as provitamin A, are not only found in many red foods, but also in green ones. Provitamin A can be converted into vitamin A in the body.

Recommended intake - D-A-CH reference values ​​*

(Recommended intake in mg equivalent per day)

Infants up to 4 months0,50,5
Infants 4 to under 12 months0,60,6
Children 1 to under 4 years0,60,6
Children 4 to under 7 years0,70,7
Children 7 to under 10 years0,80,8
Children 10 to under 13 years0,90,9
Children 13 to under 15 years1,11,0
Young people 15 to under 19 years1,10,9
Adults 19 to under 25 years1,00,8
Adults 25 to under 51 years1,00,8
Adults 51 to under 65 years1,00,8
Adults> 65 years1,00,8
Pregnant women-1,1

* D-A-CH reference values ​​for nutrient intake, 1st edition 2015

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