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Vitamin A and Beta Carotene

USDA Database of Vitamin A (mcg RAE) and Vitamin E (mg AT) for National Health and Nutrition Examination Survey 1999-2000

USDA. ARS. Food Surveys Research Group.

Vitamin A and E values for 4,311 foods. This database was developed for use with NHANES 1999-2000.

Dietary Supplement Fact Sheet: Vitamin A

DHHS. NIH. Office of Dietary Supplements.

OSU. LPI. Micronutrient Information Center.

Carotenoids: Alpha-Carotene, Beta-Carotene, Beta-Cryptoxanthin, Lycopene, Lutein and Zeaxanthin

OSU. LPI. Micronutrient Information Center.

DHHS. NIH. National Library of Medicine.

Read about the function, sources, and intake recommendations for Vitamin A.

Global Database on Vitamin A Deficiency

World Health Organization.

Provides vitamin A deficiency data by country based on xerophthalmia and/or serum or plasma retinol concentration.