21.   Beta carotene, for example, is found in orange and red foods.

22.   Buoyed by reports on beta carotene, hopeful that their sweet potatoes may become the anti-cancer food of the future, growers see better times ahead.

23.   But broccoli is higher in fiber, beta carotene and vitamin C.

24.   But two other major studies on vitamin A and beta carotene produced similar findings that, taken together, make the results of broad significance for the general public.

25.   But when vitamin A is obtained from beta carotene, the body makes only enough to meet its needs.

26.   Carrots are one of the richest sources of beta carotene.

27.   Carrots contain a substantial amount of beta carotene, which is one of the antioxidant nutrients associated with the prevention of some cancers.

28.   Cheddar cheese is orange-yellow because the cheesemaker adds beta carotene to it.

29.   Currently, however, Americans fall short even on beta carotene, the easiest carotenoid to obtain because it makes up one-fourth of dietary carotenoids.