Tag Archives: free radicals

Is cooking oil safe? – Tufts

Is Cooking Oil Safe?

There are lots of ideas circulating about cooking oils and fats. Here is Tufts University Health and Nutrition Update on the subject of cooking oils.

Q. I heard that the heat from cooking makes oil dangerous. Is oil safe to cook with?

spinach chicken pomegranate salad

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A. “Oil is safe to cook with under usual conditions,” says Alice H. Lichtenstein, DSc, senior scientist at Tufts’ HNRCA and executive editor of Tufts Health & Nutrition Letter. “The primary concern I suspect your source was referring to is oxidation, a natural process that occurs when one molecule gives up an electron to another as part of a chemical reaction. The process creates free radicals, which can cause damage that could increase risk for problems such as heart attack, stroke, and cancer. Oils and oily foods (like nuts and whole grains) can oxidize over time, even without cooking. Exposure to light, heat, and air speed up this process. Keep oils in a cool, dark place, and store nuts, whole-grain flours, and fish-, nut-, and seed oils in the refrigerator to keep them fresh longer. Repeatedly-heated cooking oil has been found to have more signs of oxidation, so it’s best not to reuse cooking oil.”

“To counteract free radicals, whether they are formed by normal metabolism in the body or in oils, eat plenty of plant foods. Fruits, vegetables, and other plants have antioxidants that can counteract free radicals in the body.”

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Oleda Baker on the Benefits of Quercetin- Guest Post

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Click on this to see full size

As you can see from her photos, Senior Supermodel Oleda Baker is aging magnificently . I interviewed Oleda last month. She is a treasure trove of information on everything this blog stands for, namely healthy living and healthy aging, so I asked her if she would share some of her ideas with us. She has written 10 books on beauty and health. Her latest, written at the age of 75, Breaking the Age Barrier – Great Looks and Health at Every Age – was released in November 2010 and is available from Amazon or from her website www.oleda.com  where she also sells her own line of health and beauty aids including Quercetin.

Science has proven that antioxidants are beneficial to our health. One of the most prominent dietary antioxidants, Quercetin, is a flavonoid found in fruits, vegetables, tea, wine and many supplements. Quercetin is also an anti-inflammatory. Unfortunately, it is not possible to get sufficient antioxidants from diet alone because you cannot physically eat a sufficient amount of vegetables and fruits in a given day. On the positive side, supplements are available.

Quercetin promotes the thermogenic processes which increase your metabolism. This will increase your energy level without the unwanted effects of caffeine or other stimulants. Quercetin helps your body burn excess carbohydrates and fat, while providing antioxidant support for your body’s needs.

Fresh fruits and vegetables are an excellent source of Quercetin

Fresh fruits and vegetables are an excellent source of Quercetin

Quercetin is a Free Radical scavenger helping to reduce oxidation within cells in order to fight off the damaging effects of these unstable molecules. As unstable free radicals move throughout the body they are able to bond to healthy/stable molecules in healthy cells. Once in the cells these free radicals damage cell membranes, chromosomes, and enzymes. This damaging of the cells will affect the rate of aging by accelerating the aging processes. Free radicals weaken the immune system, reducing the body’s ability to fight off infection from germs and viruses. A weakened immune system cannot fight off the effects of stress or overwork. Quercetin works to rid the body of these harmful unstable molecules, helping to prevent and repair the damage caused.

If Quercetin is this good how do I get it into me?
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Filed under aging, antioxidants, body fat, fat, free radicals, quercetin, Snacking