Articles, Blog

Benefits of Blueberries for the Brain

August 25, 2019

[Music] when you search the medical literature for studies on berries papers like this pop up a blueberry muffin rash or pictures of strawberry tongues or as a way to describe stool appearance those stools truly resembling currant jelly are not very common what is it with pathologists love affair with food terminology the grossest of which may be the way amoeba chest infections are described where you spit up pus that looks like anchovy sauce which sounds gross even without the pus there are actual Studies on berry supplementation like how they can mitigate the negative effects of a high saturated fat died on the brain and behavior but that was in mice may be a better way to mitigate would be to not feed your pet mouse a stick of butter in the first place then there are studies on proprietary berry based nutraceutical supplements purported to improve cognitive performance see how there’s steeper rise in the supplement group old hats will instantly recognize this as the timeless trick featured in the 1950s classic howdah lie with statistics see how they don’t start the y-axis at 0 that’s to inflate the appearance correct the graph and you can see the effect doesn’t quite look so impressive there are studies of actual berries on actual humans but when they’re funded by berry industry trade groups you get studies like this an afternoon snack of berries reduces subsequent energy intake great but that’s compared to candy strawberries raspberries blackberries blueberries fantastic compared to a handful of jelly babies which are just like coated gummy bears – berries offer so little that you have to compare them to candy to make them look good there was that famous Harvard study I did a video about where berry eating appeared to delay brain aging by up to two and a half years but you don’t know if it’s cause and effect until you put it to the test and blueberry supplementation was able to improve memory and older adults in just 12 weeks time but that was feeding them up to 6 cups of wild blueberries a day now this was a proof-of-concept pilot study just see if they get any effect right we just didn’t have any studies using more realistic doses until now how about just a cup of day of blueberries they found that the addition of easily achievable quantities of blueberries to the diets of older adults can improve some aspects of cognition like long-term memory in terms of the number of errors the placebo group got worse the blueberry group got better you can even correlate the cognitive improvements with enhanced brain activation using fancy brain scan technology to actually visualize the improved blood flow to those same regions of the brain caused by the blueberry consumption does it work in kids too blueberry treatments have shown positive effects on cognition in both rats and adult humans but do these benefits transfer to children human children how about a randomized double-blind placebo-controlled study comparing about a couple blueberries to two cups to 0 cups what did they find cognitive performance improvements across all measures and the more berries the better and this wasn’t after 12 weeks of eating berries but within hours of just a single blueberry meal sounds like a good breakfast any day our kids are having their exams [Music] you


  • Reply JakBaronKing August 13, 2018 at 12:04 pm

    How about red cherries?

  • Reply Kevin B August 13, 2018 at 12:06 pm

    Heard greger has started eating meat again from several people.

  • Reply Vegetto Blue August 13, 2018 at 12:11 pm

    Not the frozen one tho

  • Reply Jairo Cuadra August 13, 2018 at 12:18 pm

    …put it to the test!

  • Reply Hannah Ruthy August 13, 2018 at 12:22 pm

    Literally eating blueberries and pomegranate topped oatmeal as I watch this 😋

  • Reply Ronnie & Minh August 13, 2018 at 12:23 pm

    Dr. Greger could save a lot of time and money by just telling everyone to go on a raw food diet.

  • Reply RohanOf ElvenPower August 13, 2018 at 12:27 pm

    Those blueberries in your picture are not natural. I have consumed real natural blueberries and I know what theyre like. These ones in the pic are acidic in taste. The purple juice is totally unatural. Some are also slightly green. The meat should white, juiceless, have specific blueberry taste and a couple cups of them should be like a mild pre-workout powder. They should also boost vision like – Immediatly!!!. Those purple weakling, acidic and almost tasteless "blueberries" are an attrocity of modern agriculture.

  • Reply Julianne H. W August 13, 2018 at 12:27 pm

    Your voice makes it more exciting to learn about nutrition!

  • Reply Vilma Bock August 13, 2018 at 12:30 pm

    Thanks! 🌝

  • Reply Christopher O'Grady August 13, 2018 at 12:38 pm

    30g? A cup? (Whatever that means)
    I’m on at least 200g of berries a day, usually blueberries

  • Reply Dean Nicolle August 13, 2018 at 12:40 pm

    1/2 cup Blueberries in my oatmeal each day. I pick them locally where they are abundant all over the area I live in. Free and Pesticide free.

  • Reply lightdark00 August 13, 2018 at 12:42 pm

    Is anyone getting YouTube recommending them videos of zero backed up claims that we need to eat meat? YouTube started this on me and I don't think I watched anything to trigger it. I think it's also using what I write in comments 😱

  • Reply Emily BH August 13, 2018 at 12:49 pm

    It isn't just blueberries it is ALL BERRIES. Listen to Dr. Robert Morse.

    Additionally, all of you who are still eating cereal with your blueberries are dampening the effects of the blueberries. If you want the benefits, eat them by themselves or with other berries/

  • Reply Eelke Aptroot August 13, 2018 at 12:50 pm

    I used to load up on coffee before exams, once up to the point I started hearing voices in my head, this was after downing about 2 litres in about 2 hours though. Guess I should have been going for blueberries…

  • Reply Dann August 13, 2018 at 12:55 pm

    Thoughts on Whole wheat pasta?

  • Reply Raoul Kohler August 13, 2018 at 12:57 pm

    …until now !!

  • Reply Maureen K August 13, 2018 at 1:02 pm

    I so look forward to Monday, Wednesday, and Friday mornings, thanks to the great Dr. Greger!!

  • Reply Sota Negreanu August 13, 2018 at 1:04 pm

    Benefits of meat on the brain!

  • Reply JESSE B August 13, 2018 at 1:05 pm

    Don't really know how to take this video message, it showed bad research on berries back in the day and known it's showing good research on berries, I guess 20 year's from known the research will be bad again, it'll be about something they missed or something they found, nowadays you gotta really do your own personal experimental research, at least your know the truth!

  • Reply Eddy Solla August 13, 2018 at 1:34 pm

    Does it matter if there frozen Barrie’s?

  • Reply TheSUPERHAPPY1 August 13, 2018 at 1:40 pm

    I’ve heard Saskatoon Berries are even more nutritious with even more anti oxidants. Try them if you see them 💜

  • Reply Candle Duck August 13, 2018 at 1:43 pm

    I like Saskatoon Berries even better than Blueberries

  • Reply Apostolado Petrino August 13, 2018 at 2:00 pm

    what about strawberries?

  • Reply Think 4 Yourself August 13, 2018 at 2:08 pm

    I eat 3-4 cups a day, because they taste good.

  • Reply Ted Coombs August 13, 2018 at 2:09 pm

    The best part of all your videos is when you go "until we… PUT IT TO TYE TEST"

  • Reply DevinAK49 August 13, 2018 at 2:14 pm

    Blueberries make me feel high.

  • Reply Saitama Kun August 13, 2018 at 2:15 pm

    Peppermint next

  • Reply supersilverhazeroker August 13, 2018 at 2:21 pm

    eating oats with 100g blueberries while watching.

  • Reply Brent Stanford August 13, 2018 at 2:29 pm

    Great info, but the 1st 2 minutes was a big waste of time. This video should have been 2 1/2 minutes, lol.

  • Reply Gershon Pollatschek August 13, 2018 at 2:30 pm

    I love your videos, your books, your website. But cut out the silly stuff at the beginning. It's childish and turns off viewers. Thanks.

  • Reply Educate Society August 13, 2018 at 2:36 pm

    Wow! I'm gonna plant some blueberries in my backyard now 😂

  • Reply Citizenthirteen August 13, 2018 at 2:47 pm

    Eating a WFPB diet will prevent the cognitive decline in the first place. Stop the arteries in your brain from clogging and you won't need cups of blueberries to delay the decline by only 2.5 years. You won't have much of a decline to deal with ……ever.

  • Reply Jacob B August 13, 2018 at 2:57 pm


  • Reply Spartan Elf August 13, 2018 at 3:13 pm

    that feeling of watching dr greger's videos and knowing stuff that no one will ever believe if you said it

  • Reply michael onello August 13, 2018 at 3:22 pm


  • Reply Astral Purpose August 13, 2018 at 3:22 pm

    Astaxanthin in Blue Green Algae does this amazingly too maybe even better.

  • Reply NataschaO August 13, 2018 at 3:28 pm

    Will they make cats smarter as well? I'm still hoping to play chess with mine one day.

  • Reply Molerat August 13, 2018 at 3:35 pm


  • Reply Mrs. Perez August 13, 2018 at 3:41 pm

    Can you do a video on walnuts?

  • Reply bradley shefmire August 13, 2018 at 4:24 pm

    Great info – but having hard time with the fingernails on chalkboard narrator ….

  • Reply gene978 August 13, 2018 at 4:40 pm

    Thats excatly what I thought of is how I wish I would of known this when having a exam. LOL

  • Reply m0L3ify August 13, 2018 at 5:27 pm

    3:11 I know they list the P-value as being less than .05 there, but those error bars are overlapping *quite* a bit…I wonder if they calculated the SEM properly or if they just let the software pick a random type of error to graph?

  • Reply Richard F August 13, 2018 at 5:34 pm

    387,000 subscribed!! Keep up the good work.

  • Reply JayBigDadyCy August 13, 2018 at 5:37 pm

    I love blueberries! I eat them with my breakfast every morning. About a cup.

  • Reply Mitch Earleywine August 13, 2018 at 5:45 pm

    OMG! I've been teaching that y-axis trick since 1991. THANK YOU SO MUCH! We've gotta spread the word on this nonsense when it comes to presenting data.

  • Reply DMT August 13, 2018 at 5:45 pm

    Glial cells growth in the brain is promoted by the anthocyanin in purple/blue foods.

  • Reply rhoharane August 13, 2018 at 6:05 pm

    What's a good substitute/the next best thing? Especially asking for parts of the world closer to the equator and far from blueberry-growing places.

  • Reply NICK COIN August 13, 2018 at 6:18 pm

    Position of the American Dietetic Association: vegetarian diets.
    It is the position of the American Dietetic Association that appropriately planned vegetarian diets, including total vegetarian or vegan diets, are healthful, nutritionally adequate, and may provide health benefits in the prevention and treatment of certain diseases. Well-planned vegetarian diets are appropriate for individuals during all stages of the life cycle, including pregnancy, lactation, infancy, childhood, and adolescence, and for athletes. A vegetarian diet is defined as one that does not include meat (including fowl) or seafood, or products containing those foods. This article reviews the current data related to key nutrients for vegetarians including protein, n-3 fatty acids, iron, zinc, iodine, calcium, and vitamins D and B-12. A vegetarian diet can meet current recommendations for all of these nutrients. In some cases, supplements or fortified foods can provide useful amounts of important nutrients. An evidence- based review showed that vegetarian diets can be nutritionally adequate in pregnancy and result in positive maternal and infant health outcomes. The results of an evidence-based review showed that a vegetarian diet is associated with a lower risk of death from ischemic heart disease. Vegetarians also appear to have lower low-density lipoprotein cholesterol levels, lower blood pressure, and lower rates of hypertension and type 2 diabetes than nonvegetarians. Furthermore, vegetarians tend to have a lower body mass index and lower overall cancer rates. Features of a vegetarian diet that may reduce risk of chronic disease include lower intakes of saturated fat and cholesterol and higher intakes of fruits, vegetables, whole grains, nuts, soy products, fiber, and phytochemicals. The variability of dietary practices among vegetarians makes individual assessment of dietary adequacy essential. In addition to assessing dietary adequacy, food and nutrition professionals can also play key roles in educating vegetarians about sources of specific nutrients, food purchase and preparation, and dietary modifications to meet their needs.''

  • Reply Andrea Mh August 13, 2018 at 6:31 pm

    Wow I'm going to eat blueberries before the bar exam 😉 So cool! Thanks Dr Greger!

  • Reply Holzkohlen August 13, 2018 at 7:35 pm

    Luckily my niece loves blueberries. I also enjoy them with self-made banana and raspberry ice cream.

  • Reply Nmethyltransferase August 13, 2018 at 8:16 pm

    I'm guessing they're the same sort of pathologists (and medical examiners) who eat lunch in the lab!

  • Reply Nataly RAW August 13, 2018 at 9:00 pm

    the only downside is they rot your teeth fast

  • Reply Christopher Korvin August 13, 2018 at 10:59 pm

    Amebic liver abscesses characteristically adhere to the underside of the diaphragm and then burst into the overlying lung whereupon the patient coughs up the contents of the abscess.This isnt always what happens but it is common. A patient of mine who did this said "Its funny, doc,my sputum tastes of liver " !

  • Reply Héctor Daniel Ambriz Villalobos August 13, 2018 at 11:17 pm

    What about berries plus creatine for a healthy neuroplastisity !!

  • Reply Rowena Anderson August 13, 2018 at 11:19 pm

    I saw the title of this and got excited as I prepared to eat my oats with blueberries. 44 seconds in and he's putting me off lol I hope this gets better.

  • Reply Corvux IX August 14, 2018 at 1:29 am

    Dr. Vocal Fry

  • Reply Maxim C. August 14, 2018 at 2:31 am

    The real question is how enormous is the difference between wild, naturally produced blueberries and those industrially produced ones… In nutritional values, not to mention in taste.

  • Reply Wendi Froedge August 14, 2018 at 2:55 am

    Okay, so I used to work in a post-op urology unit. I never looked at wine the same way after calling my TURP patient’s urine as “Rose” and “Cabernet” … 🤢

  • Reply Joey Harshaw August 14, 2018 at 3:15 am

    Can you do a reply to Jeff nippards interview on vegan science?

  • Reply gchanger3 August 14, 2018 at 3:57 am

    💖…until….now!! A daily dose of your findings Dr. Greger and my day is complete 😊

  • Reply James August 14, 2018 at 4:35 am

    How can this conclusions be made? It's not like you can give people blueberries that aren't blueberries for the control.

  • Reply Suzana Josic August 14, 2018 at 5:24 am

    I usually have a couple of bags of blueberries in the freezer for my oatmeal🙂

  • Reply Michael Benhuri August 14, 2018 at 9:20 am

    So all this time we were looking for Big Broccoli but turns out there is Big Berry!

  • Reply Ariel Libermann August 14, 2018 at 11:13 am

    the last study..within hours a ? could it be the sugar ?

  • Reply AJtheory August 14, 2018 at 11:39 am

    So in this instance, this is something which I would characterize as 'blueberrous'

  • Reply Cathie Y August 14, 2018 at 1:00 pm

    Thank you 😍

  • Reply Sree Ss August 14, 2018 at 1:54 pm

    Incredible stuff, God bless you , the good doctor !!

  • Reply White Ninja August 14, 2018 at 6:33 pm

    The effectiveness of blueberry research could only be improved by more dramatic statistical readings.

  • Reply Rashna Maya August 14, 2018 at 9:48 pm

    Hello Dr.Greger love this channel, PLEASE PLEASE PLEASE I BEG YOU could you do an video about Keratosis Pilaris and diet? Or anyway too improve its aperance internally or externally. PLEASE from someone that has bad KP and because of it has low self-esteem.

  • Reply 2ubelazy August 15, 2018 at 12:09 am

    The graph at 3:11… Aren't there only 2 data points with error bars that allow the trend observed to be reversed according to experimental uncertainty?

  • Reply Phat Vegan August 15, 2018 at 1:23 am

    There is a gentleman Yosef, he has a farm in Peyton Colorado U.S. Ahavah Farm, he Farms completely chemical-free, which means he cannot be classified as an organic farm. But he supplies the best vegetables I've ever tasted in my life, and on the Brix scale he's getting higher numbers than what you find in the store. I'm wondering if this would translate into healthier food. It would be awesome to see him scale up to feed tens of thousands which he is talked about. But his customer base and funding is not there at this point in time. But this would be an interesting thing to see a study done on. And since organic does use chemicals I'm pretty sure there hasn't been a study done on chemically free food compared to intentionally sprayed food.?

  • Reply Angeles Rivera August 15, 2018 at 3:29 pm


  • Reply Michael James Slattery August 15, 2018 at 4:32 pm

    Dr. – said it once – say it again…

  • Reply Rawmatt August 15, 2018 at 9:52 pm

    The more science investigates and the more studies we do, the more in line Biblical scriptures prove themselves in alignment with man and diet.

  • Reply Abhay Bhatt August 16, 2018 at 6:45 am

    Does this apply to dried blueberries too?

  • Reply Slobodan Vlaic August 16, 2018 at 8:56 am

    Does anybody have/ had Foliate Papillae(Enlarged taste buds on back of my tongue)?
    I need help.

  • Reply Jose Derwis August 17, 2018 at 3:26 pm

    It is such a shame they cost so much, at least where i live….

  • Reply eliseo mata August 17, 2018 at 6:16 pm

    can you review studies on paprika for us.

  • Reply David Antos August 18, 2018 at 11:13 am

    Does anybody talk about the cancerous PESTICIDES inside regular supermarket vegetables and fruits?
    Arent they dangerous for humans? By eating a plant based diet, you must consume a lot of those chemicals (fertilizers, pesticides)…

    Im tryin to go VEGAN, but this is a topic thats kind of holding me back.

  • Reply Eddy Solla August 18, 2018 at 4:34 pm

    How about frozen vegetables what’s up with that?

  • Reply Lloyd Christmas August 19, 2018 at 4:17 pm

    I had my blueberries this morning.

  • Reply Bettina Vogel August 27, 2018 at 11:11 am

    🤣 just saw the story of you eating elderberries 😂🤣
    I'm thankful – you made this expierience – and not me!!!
    So therefore I better eat blueberries to get smarter – and go on watching your Channel! Love it 😘

  • Reply None Of September 30, 2018 at 5:50 pm

    Did you just use the same not-starting-from-zero trick that was used by the supplement company at the beginning of the video? Thanks for the otherwise great videos.

  • Reply Joyti Blogs October 17, 2018 at 5:42 am

    I loved your book how not to die.

  • Reply God Emperor Meow December 5, 2018 at 5:12 am


  • Reply Blink March 5, 2019 at 12:04 pm


  • Reply Plant based life April 19, 2019 at 4:07 pm

    You have to do wild blueberries!!!

  • Reply wahid saadi August 24, 2019 at 9:53 am

    Please suggest an alternative of blueberries. I cannt find a single shop that sells whole blueberries, only canned 😔

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