1 serving, at least every other day, of a good source of vitamin A. If
the food chosen for vitamin C is also a good source of vitamin A, the
additional serving of a vitamin A food may be omitted.
The remaining 1 to 3 or more servings may be of any vegetable or fruit,
including those that are valuable for vitamin C and for vitamin A.
Count as 1 serving: ½ cup of vegetable or fruit; or a portion as
ordinarily served, such as 1 medium apple, banana, orange, or potato,
half a medium grapefruit or cantaloup, or the juice of 1 lemon.