Orac – How To Determine The Antioxidant Value Of Foods
There are a lot of news articles, advertisements and advice about improving immune system function by eating foods or taking health supplements high in antioxidants. It seems that food producers and supplement manufacturers are tripping over each other to promote their respective product or products as the latest and greatest antioxidant answer. After all, antioxidants are believed to be beneficial in a number of ways. While the FDA has not established specific health benefits based on the ORAC value of foods, many scientists and nutritionists believe, based on numerous studies, that higher ORAC valued foods slow the oxidative processes and reduce free radical damage that contribute to age-related diseases and degeneration such as inflammatory ailments, cardiovascular diseases and cancer to name a few.
Optimal antioxidant intake is great advice but how does mom know which foods and how much of them to buy while she’s shopping for the family’s weekly groceries? Many people wonder how much they should ingest and what is used to measure the antioxidant values of foods and supplements. Is there an “antioxidant measurement?” The short answer is, yes, there is but, unfortunately, it is not commonly shown on labels or people may not be aware of it.
Briefly, some background about the measurement. Scientists at the National Institute on Aging in the National Institute of Health (Bethesda, MD) developed a method to measure the antioxidant capacity of foods that is used by reputable laboratories that measure ORAC values of food. ORAC is the acronym for Oxygen Radical Absorption Capacity. The units denoted for ORAC values are expressed as micromoles TE (Trolox Equivalents) per gram. Often times the values are simply displayed as “ORAC units” since the scientific term micromoles TE per gram really does not mean much to most of us. There are varying opinions on the correct amount of ORAC units required per day and the FDA has not issued a recommended daily allowance as of yet.
The most common recommended allowances based on this author’s research has been around 10,000 – 12,000 ORAC units per day but don’t get bogged down on a specific number especially since there is not consensus as to the “proper” amount to consume. The important thing to focus on is including more high ORAC value foods in your daily diet. Here is a partial list of foods and their corresponding ORAC values as shown on ORACVALUES.com:
Item.................................................ORAC Value
Interesting to note that cocoa (from which chocolate is derived) is the highest listed super food. Spices and berries dominate the top ORAC valued foods.
This certainly leaves some room for creativity with recipes and probably some re-thinking of dietary habits. When thinking of daily intake, consider both foods consumed and dietary supplements. While the final analysis may still be pending with regards to just the “right” amount of intake, the studies overwhelmingly suggest that increasing your intake of high ORAC foods may have very postive benefits.
Note: The statements contained in this article have not been evaluated by the Food and Drug Administration. These statements and/or any referenced products are not intended to diagnose, treat, cure or prevent any disease. Always consult your physician or licensed medical provider before beginning any medical treatment or dietary supplement program.
