Reader Comments

  1. Rafa Nino

    I like so much tour videos in currently Nutrition studying and I hop reach your email I hope to continue my PhD in USA can you help me please

  2. Emily BH

    Let's see a study that compares the human G.I. tract to primates that shows they are nearly the same and points out the obvious — that humans are not eating a species appropriate diet and have been lied to about what that consists of. Needless to say, I won't hold my breath for that video.

  3. Indiegaze

    So basically – maybe it works and maybe it doesn’t, because the evidence isn’t clear enough and I leave the video being just as confused as I came into it.
    I wish there were some conclusions or advice on these videos because I after 10 of these fasting videos I still don’t know if you think we should do it or not and in which way.

  4. jbidwell605

    For the people freaking out about being confused – this is just one part of his webinar on fasting. He does go into further depth with fasting and circadian rhythm (early intermittent fasting) as the best proven method. i.e. Only eating breakfast and then a light lunch, then skipping dinner and fasting until the next morning.

  5. Cummings Family

    Got excited for a minute when I saw "human," and thought you were finally going to get to intermittent fastings effect on human growth hormone 🙂 So far none of the studies have actually been on fasted individuals ( ex: milk on fasted days on this study), and the only type of fast is alt-day. We need data on actual fasting intermittently.

  6. michael onello

    Interesting but seems inconclusive, to many variables or differences…..Thank you, enjoying all the stuff you're coming out with on fasting!
    Vegan whole plant based foods on Instagram == mikewakethefoodup

  7. Rob Williams

    Wow the last video wasn't enough of a downer? we needed another that was like 'well it might work, but the data is crazy and there's not enough, and the people running it were probably biased…'

  8. Michael Bradley

    Could it be possible that fasting is only beneficial for carnivores as they are not putting that bad crap in their mouths, whereas fasting maybe harmful for Vegans as the don't need the dietary restriction?????????????????????????????????? Is that why you get a lot of youtube vegans swapping to carnism after fasting!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! My observational study.

  9. Benoit Alcide

    It's a shame that this study was made under the fascist government of Franco. The poor ancients didn¡t have the chance to choice to avoid the study. Perhaps today will be voluntaries for such a test, but surely, the subjets would want to be payed.

  10. Home Love

    2:30 Dr. Greger doesn't mention the amount of antioxidants on fasting days as a potential explanation for less hospitalisation in the fasting group. Aging has a lot to do with oxidative damage – and eating fruits (= antioxidants) should affect that.

  11. Adam Adam

    Um, the title of this video says ‘intermittent’ fasting, which is not the same as alternate day fasting. So what about intermittent fasting? Is there anything on that, please?

  12. Kuango Seilah

    Have you ever checked into this story about a man who at age 27 over 350 pounds fasted for over a year on coffee, tea and water? It was supposedly documented by medical doctors it would be interesting to hear your thoughts on this. Here's a link in case you haven't heard of it before; Watch "A Man Who Refused to Eat for 382 Days and Lost 275 Pounds" on YouTube

  13. Steph Ss

    Asthma is an inflammatory disease. Most of my inflammation responses are from food…wheat and dairy milk being the top two. It look me until my early 40's to realize this…so, for anyone with asthma, eat plants only, then deal with the animal hair, grass, molds, smoke, fragrances, or anything else you would take an antihistamine for. The biggest culprit is the food we eat. My allergies and asthma now is almost non existent, and I really wish I knew this sooner.

  14. Colin Murphy

    Please look at intermittent fasting like 16/8 or 20/4 or even 23/1 without alternate day cycles. Haven't heard you mention autophagy once, which is like the main benefit of fasting isn't it?

  15. KinaStar

    so, I still feel confused about this. I'm on my 30s but want to know if I can go for this to keep my weight in the line since I love eating a high starchy diet. Thanks!

  16. Wayne RN

    Disappointed to see ZDoggMD talk about Vegan nutrition and “bad science” in his video on YouTube,
    Sure wish Dr. Greger could set him straight. Would love to see a rebuttal or even better an appearance on his talk show.

  17. Raw Thinking

    Dear Dr. Gregor,

    I have a very important question to ask and would be extremely happy about any form of reply!
    I recently did a complete DNA/microbiome test, where they tested my gut bacteria and other gut markers.

    My markers generally speaking pretty good. They found out that my microbiome is dominated by the "Ruminococcus" bacteria. However, it turned out that I am laking some bacteria that I find to be pretty crucial. They categorized by vitamin producing (we are talking about b12 and K) bacteria, which seem to be close to non-existent, or even non-existent in my gut. Regarding B12 it is Propionibacterium, Bacillus, and Lactobacillus that all mark 0.0. Looking at Vitamin K it is Enterobacter, Lactococcus, and Serratia with 0.0.

    My question is: Are the bacteria essential to build the vitamin. I know B12 is build by bacteria. So what if there is a lack of the bacteria producing B12. Can you counteract it with supplementation? I could send the report too, it's in German though. 😀

    I have been plant-based for about 5 years now, 24 years old, 183cm (6"0) and about 93kg. I do strength training so I would say I am overweight, but a body fat percentage of 18% could be true, Christmas is approaching…

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