- The recommended daily allowance (RDA) of vitamin C is 90 milligrams for adult males and 75 milligrams for adult females.
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Oranges and orange juice are both great sources of vitamin C. (Scott Bauer/USDA)A major source of vitamin C is citrus fruits and juices. Other sources include berries, green and red peppers, tomatoes, broccoli, dark leafy greens such as spinach, and fortified breakfast cereals. - Vitamin C is a powerful antioxidant. Antioxidants are known to protect cells from damage and repair damaged cells. Vitamin C is also used to build collagen, which is a substance that makes up bones, teeth, gums and blood vessels.
- The recommended daily allowance (RDA) for vitamin E is 15 milligrams for both adult males and adult females.
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Sunflower oil and sunflower seeds are both excellent sources of vitamin E. (Bruce Fritz/USDA)Vitamin E is found in foods rich in fats. These include sunflower and safflower oils, sunflower seeds, almonds, peanut butter, hazelnuts, dark leafy greens such as spinach, wheat germ oil and fortified breakfast cereals. - Vitamin E is also an antioxidant that protects cells from damage.Though some studies have associated vitamin E with the promotion of heart health, results are not yet conclusive.











