Vitamin A and Beta Carotene

Dietary Supplement Fact Sheet: Vitamin A and Carotenoids

DHHS. NIH. Office of Dietary Supplements.
Medical Encyclopedia: Vitamin A

DHHS. NIH. NLM. MedlinePlus.
Carotenoids: Alpha-Carotene, Beta-Carotene, Beta-Cryptoxanthin, Lycopene, Lutein and Zeaxanthin

Oregon State University. Linus Pauling Institute. Micronutrient Information Center.
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.

A special database, developed for use with NHANES 1999-2000. Includes vitamin A and E values for 4,311 foods in 100 grams of the edible portion of each food.
Vitamin A

Oregon State University. Linus Pauling Institute. Micronutrient Information Center.