Vitamin A, in its oxidized form, is called retinoic acid. Important for visual acuity and bone growth in humans, Vitamin A can be absorbed through the ingestion of many animal and plant food sources.

Liver
Chicken, turkey, beef, pork and fish liver contain some of the highest concentrations of vitamin A. A single serving can provide as much as 722 percent of the Recommended Daily Allowance (RDA) of Vitamin A for the average adult male.



Carrots and Sweet Potatoes

Also a source of beta-carotene, a serving of carrots or sweet potatoes has nearly 100 percent the RDA of vitamin A.

Leafy Green Vegetables

Spinach, kale, collard greens and other leafy green vegetables contain ample amounts of vitamin A, on the order of 60 percent or better of the minimum RDA.

Eggs

Chicken eggs contain sufficient amounts of vitamin A to make them a viable source. One egg provides approximately 16 percent of the RDA for the average adult male.

Tropical Fruit

Mangos, papayas and apricots provide anywhere from 4 to 11 percent of the RDA of vitamin A.