Doctor's Note

More on berries and cancer prevention:
Black Raspberries versus Oral Cancer
Best Berries
Strawberries versus Esophageal Cancer
Anti-Angiogenesis: Cutting Off Tumor Supply Lines

For more context, check out my associated blog posts: Breast Cancer and DietHow Chemically Contaminated Are We? and Strawberries Can Reverse Cancer Progression.

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  • adamholt

    Intriguing video. Thanks.

    • Michael Greger M.D.

      Lots more where that came from! :)

      More than a dozen more berry videos here.

  • Nicolas

    How much of this positive effects actually occurs inside humans? These are extracts applied directly to cancer cells, no? I’ve read that for example, anthocyanins don’t make it that far in our bodies (whether or not these are what gives the anti-cancer effect).

    • Many phytonutrients actually make it all the way through our system!, bathing our cells in antioxidants along the way. You can see evidence of this when we eat beets- the anthocyanins and betacyanins turn urine red.

      Apologies for the very long response time!

  • Michael Greger M.D.

    Also be sure to check out my associated blog post Breast Cancer and Diet!

  • At what point in your career did you choose medical research over comedy? (or maybe the jury is still out on that?) Always enjoyable. No, I don’t want to eat all those nasty parts of a pig. If the choice is between berries and ANYTHING, berries wins everytime. They are so delicious!

  • Carlo

    In the sources, there’s no reference for the organic/conventional comparison. Anyway, here it is:

  • Diane

    I love your blogs and information you send out. Very trusting site…
    I am curious about a product called Juice Plus+, headquartered in Memphis area . It has a nutrition facts label and are not vitamins. 25 whole raw vine ripe fruits and vegetables concentrated in capsule form. These bridge the gap between what people actually eat and what we should eat. Non gmo, gluten free, dairy free, kosher. What is your expert thoughts
    about this product?

  • Believer1

    Dr Greger,

    Thanks for your comments on berries. Quoting Dr. Otto Warburg, Nobel Prize winner 1934, stating that high fructose consumption stimulates cancer growth, everyone should no more that grams of fruit per day or aboutz4z
    strawberries. Could you comment on that line of reasoning, pls. Your
    comments would help all

  • Bruce Cropley

    Which plant foods do you most suggest that we should (always?) use organic for? TIA :)

    • Thea

      Bruce: Lots of people like to use the Environmental Work Group’s (EWG) “Dirty Dozen” and “Clean 15” as guides on which foods to focus on for organic.

      Other people point out that EWG’s data is best used in conjunction with your own eating levels of the foods. For example, a food in the middle of the EWG list may be in the middle, but if it makes up a large portion of your diet, then maybe you should eat that food as organic. A personal example: Apples always seem to be at or near the top of contaminated lists. And I eat a lot of apples. Hence, I work hard to eat only organic apples.

      If someone has or has had cancer, I would personally encourage them to eat as much organic as possible. The following statistic shows a very low impact of conventional food on cancer. But if it were me and I actually had cancer, I would want to minimize risks as much as possible, even low ones when it is easy enough to do:

      “A new study calculated that if half the U.S. population ate just one more serving of conventional fruits and vegetables, 20,000 cases of cancer could be prevented. At the same time the added pesticide consumption could cause up to 10 extra cancer cases. So by eating conventional produce we may get a tiny bump in cancer risk, but that’s more than compensated by the dramatic drop in risk that accompanies whole food plant consumption. Even if all we had to eat was the most contaminated produce the benefits would far outweigh any risks.”

      Does that help?

      • Bruce Cropley

        Thank you very much Thea, that puts it all into perspective.
        I have been eating 5 out of the top 7 in the EWG list daily, so I think I’d better use organic versions of them for a start!

      • Bruce Cropley

        Hi again Thea.
        I was wondering how much relevance this would have here in Australia, and found a very similar list:

        • Thea

          Bruce: Good point. And great find. Thanks for sharing. It was interesting to me and I’m thinking will help others who read this thread too. Take care.