Doctor's Note

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 cholesterol. Also, there are 1,686 other subjects covered in the rest of my videos--please feel free to explore them as well!

Also, be sure to check out my associated blog posts for more context: For some context, please check out my associated blog post: Vitamin B12: how much, how often?Is Caffeinated Tea Really Dehydrating?Stool Size and Breast Cancer Risk.

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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 cholesterol. Also, there are 1,449 other subjects covered in the rest of my videos–please feel free to explore them as well!

  • Gio

    Why won’t you attempt to debunk this study? Because it goes against you think may be true?

    • MS

      I’d be interested in an analysis of this as well. This article discusses the issue of cholesterol levels – even saying that moderate levels and elevated cholesterols MAY prove not only to be harmless, but in some cases actually beneficial.

  • vernondemille


    You have to make sure that the vitamins you have chosen are of reliable.Because you will discover so many options available, it’s excellent to discuss with others.Contact specialists, like your druggist and healthcare professional.Compare brandnames and rates because this will aid you to make the choice that is right for you

  • riotemoresporfi


    Firstly you could attempt “La Champa? im? a”, the true Catalan first.You might get a sip there but it’s actually not exactly a new bar or maybe a pub.You possibly can eat in that respect there but it truly is like hardly any restaurant you’ve lots of people in prior to.There’s in no way any music from the place but it really has a good atmosphere you simply will not forget right away.Located from the port area all around “La Barceloneta” neighborhood station it’s frequently packed using people

  • riotemoresporfi

    . Have you ever felt that urge to know more, to know the answers to the universe? I am sure you all have. Looking up into the abyss made me feel something that I do not feel everyday of my life. It is a different feeling, a feeling of wonder, and joy. It is also a feeling of overwhelming excitement to know that we are just a tiny speck in a universe which is made up of billions of stars.

    Most folks know of the Big Dipper. I have known that constellation since I was a little kid and I still find it interesting to look at it, even to this day

  • Michael Greger M.D.

    Also be sure to check out my associated blog post Vitamin B12: how much, how often?!

  • Qpbd clean arteries

    I am following the PBD to reverse heart disease written by Caldwell Edelston . my question is if nuts are so good for you what is the science for not consuming them in trying to reverse the disease you have??

  • jeffrb

    I would like to know when the conclusion that red yeast rice was a natural statin was made for this article. From what I understand it is useless now as the drug company sued to have the natural statin removed,because they have a patent on it. I am at the point where I do not believe anyone anymore when it comes to food and medicine. It’s criminal. In the future you should cite the source as well as the date of the citation being used. You could be out of date.

    • Thea

      jeffrb: Did you see the “Sources Cited” section above? Perhaps that would answer your question???

  • Annette

    My husbands Dr ask him to take 1000 mg 2x a day of flax seed oil. Since flax oil does not do a thing, how much ground flax would equal 2000 mg. I put 2 tbsp in his oatmeal the days he eats oatmeal. My husband is not vegan, wish he would go vegan but he has tried but does not like not having his meat. Love you videos… :)

  • birdofparadise

    Aloha Dr. Gregor,
    I was unsure where to pose this question so I’ll do it here. My husband
    suffered a stroke this past December due to a “solidly blocked left
    carotid artery”. His doctor as well as other info I’ve looked up
    online & in books suggests he will need to live with a blocked carotid as
    there is no way to remove the plaque since they will not perform surgery (too risky) nor use the super powered drug to remove blockage (I was told they only use this when there is still some blood flow immediately following a stroke). He is primarily vegan though he does eat lowfat yogurt, sometimes ghee. He was a heavy smoker and has weaned himself down to 3 cigarettes a day & is trying to eliminate them completely. He refused statin drugs such as Lipitor which did not go over well with the medical establishment. He is taking red yeast rice and aspirin daily. Is it possible to clear the blockage in a fully-blocked carotid? If so, how?

    for your help.

    Andrea from
    Honolulu (BTW–we look forward to hearing your lecture at the Veg.
    Society of Hawaii on Tuesday (June 10). Thanks for all your good work!

  • Jerry Fessler, md

    You state that cheerios have a tablespoon of sugar per serving, but the nutrition label on the side of the package says 1 gm sugar per serving -which I think is only about 1/4 teaspoon of sugar.

  • Diana Fleming, PhD, LDN

    I have a question about the kiwi lowering LDL. So I went and read the abstract referenced in PubMed. Unless I was reading it wrong, there was no significant difference between baseline and 8 wk values for TGs, total and LDL cholesterol, but there was a significant increase of HDL by 8 weeks which would decrease the LDL:HDL and TC:HDL ratios. Did I read that incorrectly?

  • Todd

    Hi Dr. Greger,
    I’ve followed a vegan diet for 23 years, but it’s only been in the last 5 years that I’ve largely cut out fried foods and soda. My cholesterol is not where I want it. LDL is 106, and HDL is 42. I do moderate-brisk walking, but only 30 minutes per day. What is the single most effective thing I can do to improve my cholesterol numbers?

    • Thea

      Todd: Dr. Greger has several videos that highlight foods that are shown to lower cholesterol. Instead of looking for a single thing to do, how about tweaking your diet to try to include as many of those things as possible? Seems to me that would give you your best chance of success.

      Also, Tom Goff did a post recently talking about a study that shows that obese poeple may have a tough time lowering cholesterol regardless of diet. And so getting into a healthy weight may be an important step. (I have no idea what your weight is. So, I don’t know if this applies to you or not.) The link in Tom’s post didn’t work for me, or I would have repeated it here. Maybe he will post it again.

      Good luck.

  • Christina A.G

    what about giving a 13 year old boy flaxseeds in order to lower LDL cholesterol of his? Could there be any side effects? Τhak you!

  • ptrjnf

    again it is all in the details…… in the study of the kiwifruit and HDL i have one important question. were the kiwifruit consumed with the skin on or were they peeled ?

  • ptrjnf

    again it is all in the details…… in the study of the kiwifruit and HDL i have one important question. were the kiwifruit consumed with the skin on or were they peeled ?