Antioxidant Nutrition

Reading the current article top to bottom will give you an excellent understanding of this topic.

"Antioxidant" is the collective term for the vitamins, carotenoids, minerals and polyphenols that protect the body from harmful free radicals. The most well known antioxidants include the mineral selenium and Vitamins A, C, E. The carotenoids beta-carotene, lutein, and lycopene also have high antioxidant nutrition and are responsible for adding color to many fruits and vegetables. Carrots and pumpkins wouldn't be orange without beta-carotene, for example. Lutein, also important in eyesight, is abundant in leafy green vegetables. Lycopene is present in red fruits and vegetables, most notably in tomatoes. No wonder why many experts stress the importance of eating a "colorful" diet! They know it has tremendous nutritional value.

So why are they called antioxidants? The name represents the mechanism by which they help prevent disease. In humans, a small but significant percentage of oxygen molecules in the body will become electrically charged due to natural cellular activity and/or exposure to environmental factors like tobacco smoke and radiation. The oxygen molecule becomes a "free radical" as it undergoes this process of oxidation. Free radicals are highly reactive as they try to steal electrons from other molecules, including DNA and cellular membranes. This chain reaction of free radicals can damage cells, which may play a role in the development of certain conditions like heart disease and cancer. Antioxidants, however, stop the chain-reaction by giving up electrons and neutralizing free radicals so that they cannot induce any more oxidative damage.

Studies have shown a possible link between free radicals and many degenerative diseases related to aging. Because the chain-reaction of oxidation is quelled by antioxidant nutrition, antioxidants may be effective in treating and reducing the incidences of cognitive impairment, Alzheimer's disease, immune dysfunction, stroke, cataracts, cancer, cardiovascular disease and macular degeneration.

There is an abundance of Vitamin A in liver, dairy and fish. Vitamin C is found in bell peppers and citrus fruits while Vitamin E is plentiful in oils, fortified cereals, seeds and nuts. The mineral selenium can be found in Brazil nuts, meats, tuna and plant foods. You will find lutein in green vegetables like broccoli, Brussels sprouts, peas and kale. Tomatoes, watermelon, pink grapefruit and papaya are all good sources of lycopene. Beta-carotene is abundant in sweet potatoes, carrots and squash. If you are not getting enough in your diet, the next step you may want to consider is nutritional supplements.

Arming yourself with the right data regarding antioxidant nutrition is the first step in creating a knowledge base of nutritional information. There are many ways to do this. You can search the web, go to your local library and do some hands on research, or you can consult a nutritionist. They can take a hard look at your current diet and goals and suggest supplementation as needed.

I hope this article satisfied your needs. Please continue to browse through my other articles.

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