Prevent Disease, Naturally.

 

 

You may have heard that antioxidants – such as vitamins C and E, carotene, lycopene, lutein and many other substances – may play a role in helping to prevent diseases such as cancer, cardiovascular disease, Alzheimer’s disease and mucular degeneration. But if you’re  looking to prevent these diseases by taking antioxidant supplements, recent research indicates that it’s unlikely you’ll experience much benefit – and it’s possible that some supplements could be harmful.

            Fortunately, research is also increasingly showing that you can reap the potential health benefits of antioxidant intake by eating a diet rich in antioxidant-containing foods. As a bonus, foods high in antioxidants typically offer many other health benefits, as well.

 

Free radicals

            Antioxidants are thought to be helpful because they can neutralize free radicals, which are toxic byproducts of natural cell metabolism. Free radicals can also be introduced into the body by exposure to certain substances such as cigarette smoke, sunlight or pesticides.

            Although free radicals perform some useful functions, in excess or in the wrong place, they can damage healthy cells through a process called oxidation is thought to be a factor in the development of certain diseases. Overall, free radicals do far more harm than they do good.

            Our bodies naturally produce antioxidants and are quite effective at neutralizing free radicals. The minerals copper, manganese, selenium and zinc are important players in this process. But this process isn’t 100 percent effective, and it’s effectiveness declines with age.

 

Why are foods best ?

            One reason why foods appear to be a better choice than supplements is that foods contain an unmatchable array of antioxidant substances. A supplement may contain a single type of antioxidant — or even several. However, foods contain thousands of types of antioxidants --  vitamin A alone has several hundred forms – and it’s not known which of these substances are able to confer benefits. In fact, many researchers theorize that antioxidants in food form chemical networks that then interact with our own cellular and genetic intricacies.

            In addition, although supplements containing antioxidants are generally considered safe, two recent studies have suggested that taking higher doses of supplements such as vitamin E over time may actually increase your risk of death.

            In contract, foods higher in antioxidants are often plant based and offer health benefits in addition to their antioxidant content, such as being high in fiber, protein, and other vitamins and minerals and low in saturated fat and cholesterol.

 

Food sources of antioxidants

 

No one food or food group should be your sole focus. It’s best to include a wide variety of foods from the categories listed below as part of a healthy well balanced diet. Some of the better sources of antioxidants include:

• Berries – Blueberries, blackberries, raspberries, strawberries and cranberries are among the top sources of antioxidants.
• Beans – Small red beans and kidney, pinto and black beans are among the top sources of antioxidants.
• Fruits – Many apple varieties (with peel) are high in antioxidants, as are avocados, cherries, green and red pears, fresh or dried plums, pineapple, oranges, kiwi and others.
• Vegetables – Those with the highest antioxidant content include artichokes, spinach, red cabbage, red and white potatoes (with peel), sweet potatoes and broccoli. Although the effect of cooking on antioxidant levels varies by cooking method and vegetable. One recent study shows that cooking generally increased levels among select vegetables.
• Beverages – Green tea may come in mind as a good source of antioxidants, but other beverages have high levels, too, including coffee, red wine and many fruit juices.
• Nuts --  Walnuts, pistachios, pecans, hazelnuts and almonds are some of the top nuts for antioxidant content.
• Herbs – These may be unexpected suppliers of antioxidants, but ground cloves, cinnamon or ginger, dried oregano leaf, and turmeric powder are all good sources.
• Grains – In general, oat-based products are higher in antioxidants that are those derived from grain sources.
• And for dessert – Don’t forget that piece of dark chocolate ranks as high or higher than most fruits and vegetables in terms of antioxidant content.