Doctor's Note

More on mushrooms:
Making Our Arteries Less Sticky
Breast Cancer vs. Mushrooms
Boosting Immunity While Reducing Inflammation
Why Do Asian Women Have Less Breast Cancer?

And check out my other videos on mushrooms

For additional context, see my associated blog post: The Best Foods: test your nutrition knowledge.

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  • Michael Greger M.D.

    Please feel free to post any ask-the-doctor type questions here in the comments section and I’d be happy to try to answer them. And check out the other videos on mushrooms. Also, there are 1,449 other subjects covered in the rest of my videos–please feel free to explore them as well!

  • ja827

    Doc, have you looked into Siberian Chaga? not a typical ‘mushroom’, but the highest ORAC value of all ‘fungus’

  • Michael Greger M.D.

    For some context, please check out my associated blog post The Best Foods: Test Your Nutrition Knowledge!

  • bee

    Are mushrooms ok to eat raw?  Do mushrooms aggravate dysbiosis issues?

  • Ilana

    Have you heard anything about Chaga mushrooms –

  • Marcia

    Are dried herbs (such as marjoram and mint) as healthy fresh herbs? And what about mushrooms – dried vs fresh?

  • Since becoming vegan I try to make sure I eat lots of mushrooms for the Vit D (and because I LOVE THEM) and I recently discovered “mock beef jerky” which is vegan and made with mushrooms. Someone pointed out to me however that being made in Taiwan, its possibly its loaded with heavy metals – as are most asian grown Shiitaki as well. Although this was purely word of mouth I noticed there are some global concerns about heavy metals in mushrooms – I would love some more info on this if you (or anyone else) can find it in the literature.

    Kind regards,


  • Looking at the source cited, there’s actually no reference to mushrooms.

    It appears that Crimini mushrooms are the healthiest (USDA Database for the Oxygen Radical Absorbance Capacity (ORAC) of Selected Foods, Release 2. May 2010.)

  • Richard Horn

    Hello Dr. Gregor,
    I’ve eaten button mushrooms for years and only recently through your efforts discovered their toxic nature. Two questions please: Will boiling thinly sliced button mushrooms for 30 min. then discarding the water and rinsing take care of the problem? And two, Will all this heat do substantial damage to the benefits? Thanks for your time, and a great website.

    • Thea

      Richard: I’m not an expert, but from what I understand is: you just don’t have to be so careful and worried about it. The benefits of mushrooms are well documented. Dr. Greger has several pro-mushroom videos in addition to this one. The only video where Dr. Greger talks about the potential problem with raw mushrooms, it seemed to me that simple, basic cooking destroys any problems. So, you wouldn’t have to worry about how thin it is sliced, cooking forever, or even throwing away the cooking water. That’s my understanding.

      Here’s the link to the “Toxins In Raw Mushrooms” video if you are interested:

  • Darrell

    I heard from an MD that Tourine has a favorable effect on Cataracts. Any truth to that?

  • Michael Farrell

    Why are wild mushrooms in the RED Zone? Are wild berries also in the red?