For a green food to contain beta carotene it must be dark enough to conceal orange. It should be noted that persons with diabetes can not make the conversion from beta carotene to vitamin A and should use a source of preformed vitamin A such as liver. Digestion is not required for vitamins. Absorption can only take place if there is fat or oil in the digestive tract at the same time as the vitamin. If a salad containing green and orange vegetables is eaten with fat-free dressing and there is no other fat eaten at that meal, the vitamin A will not be absorbed into the body.
Storage is in body fat.
Eat a cooked green or orange vegetable or fruit every day. Eat a raw green or orange vegetable or fruit every day, too.