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  • PaulB

    A couple of comments,

    First congratulations on the launch! I intend to be a daily reader. Your contribution to the health of people everywhere as well as the health of the planet, and benefit to animal welfare is immeasurable. Thank you.

    Second, I want to tie back this video with the video you did on Beliveau’s work on foods fighting cancer. Beliveau while acknowledging the importance of antioxidants cautions overemphasizing this as a health metric (proxy) (See pages 60 to 64 in Beliveau’s Foods to Fight Cancer). The specific example he gives in those pages is of isothiocyanates which have very limited antioxidant potential but which are also believed, based on current research, to have among the highest effects on stopping cancer. I realize that this video was primarly to compare the metrics of animal vs. plant food. And so, in such a comparison, antioxident given the wealth of data makes sense. A disclaimer, say 30 seconds or a cross reference to the work you did on capturing Beliveau’s research (I think Furhman gave onion a 50 ANDI score, I will have to check)would help.


    • Michael Greger M.D.

      Thank you for your kind words, and you’re absolutely right that the antioxidant power of plant foods represents only one of their many benefits. That’s indeed why I presented those two videos (part 1 and part 2) ranking vegetables by their ability to slow down cancer cell growth. Just because something is good for you doesn’t mean it necessarily has lots of antioxidants (like oyster mushrooms) and just because something has lots of antioxidant power doesn’t mean it’s necessarily good for you (uric acid and preservatives like BHT come to mind).

      • Youcef

        I agree with Paul. Exactly what you just said Michael would be of great help for the existing portion of readers with little knowledge in health science. As of now, a lot of the videos on antioxidants come off as if antioxidants alone were the only or the most important factor for health, when we know indeed there is more than just that antioxidants to health.

  • corygold

    Dear Dr. Greger,
    I have seen most of the videos that you have released on your DVD sets and I was curious if you have come across any studies relating to bee pollen. I am a vegan and take my B12 supplement several times a week in addition to my daily spoonful of bee pollen. I know that some people argue that bee pollen isn’t necessarily vegan although I guess that is in the grey area. Have you come across any studies discussing the pros/cons of taking this so called “superfood”? Thank you so much for your time and for putting this site up.

    • Youcef

      Dr. Gernez, most famous in France for world-changing work on preventing degenerative diseases, recommended to blow of a minute amount of pollen on newborns (anytime during their immunotolerance period) along with minute amounts of vaccuum cleaner dust collected in late summer (“yuk” you may say, I know!) as a means to get their immune system to recognize pollen. It may be less necessary in places where moms and their newborn are discharged within days of the delivery, because that way the baby is naturally exposed to allegens in the short window of opportunity that is his first few weeks of life. Any medical textbook refers to that period of immunotolerance and the doctor did it on all his family, none are allergic.
      That’s the only really valuable thing I’ve heard so far on pollen, and I’m like you always curious to learn more about its benefits, perhaps more as a food this time :)

  • Toxins

    I would like to know the same regarding bee pollen and the safety of glucasomine

  • JohnSwallow

    Dear Dr. Greger: Is antioxidant power THE ONLY measure of antioxidants, so that the higher the ORAC value the better and variety of antioxidants not so critical?? I’m confused!!

    This is an incredible website that I promote to many!! Thank you so VERY MUCH!!

    • JohnSwallow

      I’m eager to find your answers on! I’m intelligent, just not this web-savvy!! Please help! Great website! Its too early to nominate you for a Nobel Prize in Medicene, but its CERTAINLY COMING! John S.

  • JohnSwallow John Swallow 4th message, 1st with notification requested to my Email.!

    • Michael Greger M.D.

      Sorry it took me so long to get to your comment. Please see my answer to PaulB above.

  • wickedchicken

    LOL that beer is the 5th greatest source of antioxidants in the American diet!!!! OMG.

  • sherry7701

    Dr. Gregor,

    You have given us all a wonderful gift with this website. Thank you for the fantastic resource to help us all navigate the complex world of nutrition science.


  • Maybe I’m slow, but what’s the number one antioxidant food?

  • Megann19

    I don’t think you’re slow…your question is actually a good one. I don’t know of any one food in particular as holding the #1 position for post digestion antioxidant potential, as far too many variables would preclude such a finding most likely. However, the following foods have ORAC (oxygen radical absorptive capacity) scores that are considered impressive: Cocoa, red beans, berries, and spices like dried clove, oregano, ginger, cinnamon and tumeric. However, scientists are continually discovering powerful disease fighting substances in all kinds of plant foods, which is a very powerful plus for those of us following a vegetarian and/or vegan lifestyle.

  • Megann19, Thanks for your response. You make good points. I just thought I’d get a #1 from this study, at least on some merits and until proven otherwise. Oh well, we’ll just have to keep eating the best whole foods regardless. :)

    This site keeps me on my toes and reminds me to keep increasing my consumption of fruits and vegetables. Never felt better.

  • Michael Greger M.D.

    Also be sure to check out my associated blog post The last heart attack!

    •  Your link is broken Dr. It’s the extra http at the beginning. :)

      • Michael Greger M.D.

         Thank you so much–corrected!

  • guest

    As always this is a great video. I would really love to see a video simply discussing exactly what antioxidants are and why we should be so concerned with them. 

    • guest

      also, can you give us more details about how antioxidants are calculated?

  • Toxins

    I have a question regarding the antioxidant content of the study here using FRAP and the USDA study showing ORAC values of foods.

    This study by the USDA  in your other video of the antioxidant content of 300 foods ( seems to put apples at 3065 umol/100 grams while this study ( puts apples at 300 umol/100 grams. Are these 2 methods of testing the antioxidant capacity of certain foods that inaccurate?

  • Raw cacao has the most of any foods even more than acai which has a score of 536. Raw cacao has a score of 955 source: Superfoods by David Wolfe.

  • lovestobevegan

    What better way to increase your consumption of purple cabbage than with this simple to make snack.

    Antioxidant Coleslaw
    – 3 cups purple cabbage, chopped
    – 1 clove garlic, minced
    – 1 green onion, thinly sliced
    – ½ small red onion, diced
    – 3 tablespoons apple cider vinegar
    – Sea salt and black pepper to taste

    • Combine all ingredients in a shallow dish. Better flavor is achieved when ingredients can marinate in the fridge overnight.

  • Yaron

    Great video!

    I have a short question. Is there such thing as *too much* anti-oxidants?

    • Toxins

      apparently not according to Dr. Greger.

      • Yaron

        Thank you for the reply!

        I actually read a part of the original study. It seems that they only tested one antioxidant… Therefore I find it difficult to understand why the same result should follow for other antioxidants as well.

        Interesting stuff anyways.

  • ern2win

    Dear Dr. Greger,

    Thanks so much for highlighting this study and lists. I have downloaded the list.

    In reviewing some items in the list, I came across what seems and unusual result: Toasting whole wheat bread doubles the antioxidant value!

    Whole wheat bread Wonder USA 0.47

    Whole wheat bread, toasted Wonder USA 1.00

    1. Do you believe this is correct?
    2. How can it be explained?


    • Daniel Johnson

      Toasting removes moisture (and weight) so if test is per 100 grams, 100grams of toast contains more wheat than untoasted.

      • Ernest Mayberry

        Thanks Daniel,

        I did additional research which confirmed the result, but your explanation makes perfect sense.

  • Kelley

    Looks like the USDA removed the list from its website?

  • rick

    I know what antioxidants do but not sure what they are. Do all vitamins have antioxidants or just E and C? Is vitamin E a antioxidant or does it contain antioxidants?

    • Toxins

      There are many many antioxidants found in plant foods. Vitamin E and C are indeed antioxidants, but there are many more. Strawberries for example, have a wealth of antioxidants.

  • Jeff F

    In a book on sports exercise and nutrition called “The First 20 Minutes” the author quotes a German study which showed that post
    exercise, athletes taking anti-oxidants (vitamin C and E supplements) had elevated levels of antioxidants BUT the same level of free radicals as those who hadn’t consumed the vitamins. It was because the body didn’t summon its own genetic and enzymatic defense mechanisms in the presence of the
    consumed anti-oxidants. This would indicate that consuming high levels of
    anti-oxidants may be ineffective if your body reacts by reducing its own defensive efforts. Are you aware of the validity of this research? The book also mentions similar results found a few years earlier in lab rat experiments at U of Valencia in Spain and U of Wisconsin, Madison.

    • Toxins

      Dr. Greger will release a video showing that Exercise is an oxidative activity, but for several days after, our antioxidant capabilities are significantly stronger then before the exercise. He also shows how consuming antioxidants while exercising does not produce the same effect. Details soon to come!

  • JR

    What about this in vitro vs. in vivo distinction?

  • Daniel Johnson

    I see the USDA is no longer posting the study this is derived from, as they felt it was being misused.

  • Mindaugas Raulinaitis

    What is the secret to aging more slowly and living longer? NOT ANTIOXIDANTS, apparently.

    Many people believe that free radicals, the sometimes-toxic molecules produced by our bodies as we process oxygen, are the culprit behind aging. Yet a number of studies in recent years have produced evidence that the opposite may be true.

    Now, researchers at McGill University have taken this finding a step further by showing how free radicals promote longevity in an experimental model organism, the roundworm C. elegans.

    “The Intrinsic Apoptosis Pathway Mediates the Pro-Longevity Response to Mitochondrial ROS in C. elegans”, Callista Yee, Wen Yang, and Siegfried Hekimi, Cell, May 8, 2014

  • Andy from Holland

    Dear Dr Gerger. I want to express my great appreciation for sharing this information. It is good to have a source where you get the facts.
    I watched you presentatiom on the leading causes of death and it is one of the most impressive presentations I’ve ever seen.
    It changed, and probably will extend, my life. Thank you very much.

  • dpool

    Hi Dr Greger,

    Thank you so much for this valuable resource!

    A quick question on my favorite topic, beer. You mentioned a breakdown of the different antioxidant properties of different beers but I was wondering if there is any research around other health benefits to beers. For example, some great beer coming out of Russian River in California include brettanomyces, lactobacillus, and pediococcus. Could these possibly be serving as probiotics?

    Potential health areas for discovery:
    Organic vs non-organic beer
    Unfiltered vs filtered
    Hop content directly influencing antioxidant levels


  • HC

    Dr. Greger, For vegans who periodically fast (every couple of weeks I fast for 2-3 days), is there some harm being done because we fail to ingest antioxidants/phytochemicals while fasting? HD

  • Boby

    Soda bi carbonate mix in lemon jioce Is it good for cancer?

  • les privat Surabaya
  • LOU

    soooo ! its only been 3 years ! wheres the list or even better which foods are the HIGHEST ?

  • Jennea Wood

    I would love to watch this video, but there seems to be an issue with it.

  • danieltb

    I’ve made it a habit to have red cabbage sauerkraut ever since I heard red cabbage had far more antioxidants per dollar than even wild blueberries, but now I have a question.

    Are the antioxidants in the red cabbage I eat still that effective after 21 days of fermentation (not to mention, since I make a larger amount than can be eaten in one sitting, the amount of time it will spend sitting in the refrigerator until I get around to eating it)?