Articles, Blog

Preserving Immune Function in Athletes With Nutritional Yeast

August 15, 2019

[Music] moderate exercise improves immunity and decreases illness rates by far the most important finding that is emerged from exercising my knowledge II studies over the past two decades is that positive immune changes take place during each bout of moderate physical activity over time this translates to fewer days of sickness with the common cold and other upper respiratory infections we’re talking at 25 to 50 percent reduction in sick days and then one drug or supplement that can do that and it doesn’t take much let kids run around for just six minutes and you can boost the numbers of immune cells circulating their blood stream by more than a third and at the other end of the lifecycle exercise may help prevent age-related immune decline sedentary women in their 70s may have a 50% chance of getting an upper respiratory illness during the fall season every year but walk a half hour a day and your risk is down to 20% the runners in the group got it under 10 it’s like five times better immune system now while regular physical activity improves immune function and lowers upper respiratory infection risk sustained and intense exertion may have the opposite effect forming a so called j-shaped curve relationship as you go from inactive to active your infection risk declines but hardcore athletes that overtrain may actually put excessive stress in their bodies and increase their risk of infection then you could lose training days your performance could suffer so what can you do well traditional sports medicine doesn’t appear to have much to offer advising athletes to you know don’t pick your nose avoid sick people get a flu shot a new study though found that one can better maintain one’s level of circulating white blood cells after exhaustive exercise by computed consuming a special type of fiber found in baker’s Brewers and nutritional yeast brewers yeast is but nutritional yeast is a nice cheesy flavor I use it mostly sprinkle on popcorn anyway normally two hours after cycling your brains out you can experience a dip in circulating monocytes one of our first line of defense white blood cells but those who had been eating the equivalent of less than three-quarters of a teaspoon a day of nutritional yeast ended up even better than when they started after strenuous exercise but does this increase in immune cells translate into fewer illnesses well let’s try it on some marathon runners in the weeks following the calls bad marathon this is how many runners reported experience upper respiratory tract infection symptoms taking a placebo but if instead they have the equivalent of a daily spoonful of nutritional yeast they cut their rates in half and what’s even more remarkable is that they felt better they asked how they felt on a scale of one to ten people taking the sugar pills were like okay down around four or five but those taking identical-looking capsules of the fiber found a nutritional yeast or up at like six or seven evidently elite athletes tend to normally experience deterioration and mood state during intense training periods before and after a marathon race but sprinkle a little spoonful of nutritional yeast and you may feel less tense less fatigue less confused even less angry and my favorite significantly more vigor [Music] you you


  • Reply Vegan mit Rohe Energie October 21, 2013 at 11:35 am

    Thank you for the great information. 🙂

  • Reply Simon Boudreau October 21, 2013 at 11:47 am

    try sprinkling whey protein on your popcorn doctor, i hear its great for post workout.

  • Reply TheVeganAtheist October 21, 2013 at 12:59 pm

    your vegan and recommending why protein?

  • Reply Peterz29Boy October 21, 2013 at 1:01 pm

    Whey protein. Forget that toxic crao.

  • Reply Peterz29Boy October 21, 2013 at 1:02 pm


  • Reply Christopher Jarrett October 21, 2013 at 1:07 pm

    Nutrition yeast is vegan, why is everyone saying about whey protein? lol

  • Reply Simon Boudreau October 21, 2013 at 1:10 pm

    The guy at my gym told me it was great. why would i belive Dr. Greger when some random beef at my gym gives me all this great info ?

    ps : Sorry if i mislead some comment readers with my sarcasm. obviously whey powder is terrible for everyone involved.

  • Reply organicsuperman October 21, 2013 at 1:23 pm

    Another great exercise nutrition video.

  • Reply Vince Marotte October 21, 2013 at 1:35 pm

    Brewers yeast?

    Show I should be drinking beer after workouts?

  • Reply jen ponkins October 21, 2013 at 2:26 pm

    What about the B12 content of nutritional yeast? It seems like this could have something to do with the positive outcome of the study as well. I would like to know more about this!

  • Reply Awesome Rawsome Lifestyle October 21, 2013 at 4:23 pm

    In the inbox he states…
    Have a question for Dr. Greger about this video? Leave it in the comment section at nutritionfactsDOTorg/video/prese… and he'll try to answer it!

  • Reply Stoudamire3 October 21, 2013 at 4:28 pm


  • Reply silkhead44 October 21, 2013 at 7:57 pm


  • Reply felipe sancheez October 22, 2013 at 1:27 am


  • Reply beaelliott October 22, 2013 at 2:53 am

    Oh joy! Just what I needed… Yet another reason to LOVE nutritional yeast. Better health was never so tasty! 🙂

  • Reply dandylion October 22, 2013 at 4:53 am

    can you do a video about fruit or juice fasting and maintaining minerals and nutrient levels? I tried a 33 day juice fast and became so anemic I had to stop before my 60 day goal. i'd like to try it again better prepared.

  • Reply Maoh Lynx October 22, 2013 at 6:11 am

    my wpm is 130, I never get sick.

  • Reply Shane Houston October 22, 2013 at 1:50 pm


  • Reply Bambi Able October 22, 2013 at 6:42 pm

    The exercisers ( runners and hard walkers) have less colds due to 1) exercise clearing lungs of mucous 2) increased air volume in lungs 3) increased exchange of gases 4) the increased clearance of respiratory gas exchanges creates healthier lungs and reduces the time virus, bacteria reside 'trapped' in the lung and hence have time to infect.

  • Reply Bambi Able October 22, 2013 at 6:49 pm

    By the way – I love this channel and I know what the Doctor puts forth is correct. I just like to point out alternatives that occur to me as I listen. I do not criticize or dispute what the video espouses. I just offer an alternative explanation or point of view which occur to me during the presentation. Most things are multi-factorial.

  • Reply dandylion October 22, 2013 at 7:57 pm

    thanks, for being a sanctimonious ahole.

  • Reply dandylion October 22, 2013 at 11:18 pm

    I'm sorry I didn't watch every single one of his videos before I had the nerve to ask a question. In any case I asked the doctor not you. Thanks but I don't need advice from a foul and constipated internet troll.

  • Reply bogipepper October 23, 2013 at 1:41 am

    The Internets' Darwin awards never fall where needed most. Thanks for your work, past , and future.

  • Reply Benzo Stanbury October 23, 2013 at 3:03 am

    For now I think plain, unsweetened whey protein in moderation is pretty healthy. It is probably a lot better than milk because it has very little lactose or casein protein (which is likely carcinogenic). Proponents of whey protein claim that its has a variety of molecules that aid immune function. Are these people liars? I would be interested if Dr.Greger would sift through some primary literature with regards to whey protein. In the meantime, I'll start eating some nutritional yeast.

  • Reply sporto100 October 24, 2013 at 3:19 pm

    By your logic would not increased gas exchange also increase their chances of contracting an air born virus?

  • Reply WaterspoutsOfTheDeep October 25, 2013 at 1:04 am

    can make anything out to be bad. its about risk and reward. whey "can be" very healthy.

  • Reply shapetwist October 25, 2013 at 3:56 am

    wow maybe you should look into shit before you over commit yourself

  • Reply omuleanu November 10, 2013 at 9:23 pm

    too much exercise is bad for immune in my experience, I started going to the gym and was staying there for hours, I was in the pool for 4 hours and was exhausting myself, after that I started having lots of problems, and getting ill all the time

  • Reply InvisiMan March 13, 2014 at 2:16 pm

    I bet grass fed beef can't do that! LOL

  • Reply Paul D June 18, 2014 at 9:51 pm

    l exercise everyday, and eat more green than I know what to do with – I haven't had the common cold in over 2 years and my job is stress city, while finishing a masters degree. Just felt like it was time to chime in…I move people out of nursing homes for a living…not a good place to be.

  • Reply Li-San Loves September 10, 2014 at 11:42 am

    Very interesting! I do feel much better when I get to exercise. I have yet to try nutritional yeast. I've heard that it makes really good vegan cheese.

  • Reply JolienJolien Z August 17, 2015 at 7:51 am

    Could you please do a video about brewer's yeast? Benefits (B12), negative points? …

  • Reply Pervy August 12, 2017 at 6:44 pm

    Started incorporating nutritional yeast and love the stuff! At first I didn't really see how I'd go about using it, but now I put it on everything haha. Can't say how much it helps me health wise, but it sure doesn't make me feel terrible using actual cheese or other salty seasonings. Anything that makes a dish taste better without knocking me out when I eat big is a staple in my shelf and belly!

  • Reply izeizei August 30, 2017 at 12:29 pm

    I go through kilos of that stuff weekly. Especially love it in my Massaged Kale Salad! Yummy!

  • Leave a Reply