The body may produce oxidizing agents call free radicals naturally for a variety of purposes including the destruction of pathogens and energy production. However, when there are more oxidizing agents than the body can neutralize, it creates a state of oxidative stress. Cancer, heart disease, and atherosclerosis are all conditions that can be tied to oxidative stress. Antioxidants play an important role in keeping free radicals in check. Therefore ensuring that adequate amounts of antioxidants are present in the body can help to eliminate some of the conditions that contribute to the development of these diseases. How can we do that? Citrus fruits contain high amounts of natural antioxidants. Other sources include dark leafy greens like spinach and kale, alfalfa sprouts, carrots, seaweed, grapes, prunes, blueberries, strawberries, grapes, and broccoli flowers.