Johanna Hartan 9K 20/02/2014. HISTORY AND DISCOVERY Vitamin a was discovered in the early 1900.

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Presentation transcript:

Johanna Hartan 9K 20/02/2014

HISTORY AND DISCOVERY Vitamin a was discovered in the early 1900

USES IN THE BODY Vitamin a is very good for night vision.

DISORDERS Vitamin A deficiency is a very serious problem.

DIAGNOSIS Vitamin a deficiency can be diagnosed with a blood test or an eye exam.

SYMPTOMS Night blindness is a common symptom of VAD

INCIDENCE OF DISORDER The disorder is very uncommon in developed countries but is very widespread in underdeveloped ones.

Use of vitamin supplements in the U.S

TREATMENT A healthy, vitamin A rich diet is the best treatment and prevention.

CURRENT REASERCH A lot of effort is being put into helping women and children who suffer from VAD

Retinol is a form of vitamin a found in animal products, while carotene is found in plants. Carotenes are called pro-vitamin a because when they are absorbed the body turns them to vitamin a Plant sources of vitamin a include orange and dark green fruits such as sweet potato, mango, spinach and apricots Vitamin a is essential for normal cell growth although it has not been proven to prevent cancer. Vitamin a also prevents infertility Massive overdoses of vitamin a can cause rough skin dry hair and an enlarged liver. 5 FACTS

ORGANIZATION Child info FAO WHO

"Micronutrient deficiencies." WHO. N.p., n.d. Web. 14 Feb "Patient.co.uk - Trusted medical information and support." Patient.co.uk. N.p., n.d. Web. 17 Feb "VITAMIN A PROPERTIES." Properties of vitamin A. N.p., n.d. Web. 17 Feb "Vitamin A." — QuickFacts. N.p., n.d. Web. 14 Feb "Vitamin A: MedlinePlus Medical Encyclopedia." U.S National Library of Medicine. U.S. National Library of Medicine, n.d. Web. 17 Feb "Vitamins All." Vitamins All. N.p., n.d. Web. 15 Feb "what is vitamin a?what does vitamin a do?." Medical News Today. MediLexicon International, n.d. Web. 17 Feb WORKS CITED

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