Why We Get Slow Metabolisms & Should You Reverse Diet? Science Discussion ft. Dr. Eric Trexler

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  • Опубликовано: 13 июн 2024
  • In this video I'm speaking with metabolism researcher Dr. Eric Trexler about metabolic slowdown, reverse dieting, metabolic damage, rapid weight loss, crash dieting, starvation mode and other topics.
    Timestamps:
    0:00 - Intro and topics summary
    5:13 - What is metabolic slowdown/adaptation?
    9:02 - Do bigger/fatter people have "slower metabolisms"?
    17:28 - How to reduce metabolic slowdown when dieting
    19:04 - Do refeeds and diet breaks help?
    28:45 - Rate of weight loss (how fast to lose)
    32:48 - Misleading/inflated "maintenance calories"
    36:17 - Rapid fat loss/ crash dieting
    40:11 - How should you train in a deficit? (Decrease load or volume?)
    44:40 - Starvation mode
    50:58 - Metabolic damage
    59:20 - Reverse dieting
    You can also listen on The Jeff Nippard Podcast on iTunes and Stitcher
    itunes.apple.com/podcast/the-...
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    SOURCES:
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    Outro Music:
    ‣ Ryan Little: • Ryan Little - Sometime...
    -------------------------------
    About me: I'm a Canadian natural pro bodybuilder and internationally-qualified powerlifter with a BSc in biochemistry/chemistry and a passion for science. I've been training for 12 years drug-free. I'm 5'5 and fluctuate between 160 lbs (lean) and 180 lbs (bulked).
    -------------------------------
    Disclaimers: Jeff Nippard is not a doctor or a medical professional. Always consult a physician before starting any exercise program. Use of this information is strictly at your own risk. Jeff Nippard will not assume any liability for direct or indirect losses or damages that may result from the use of information contained in this video including but not limited to economic loss, injury, illness or death.
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Комментарии • 1,2 тыс.

  • @JeffNippard
    @JeffNippard  5 лет назад +1066

    So many great topics covered in this video. Feel free to hop around with the timestamps below and you can also listen on The Jeff Nippard podcast on iTunes/Stitcher.
    0:00 - Intro and topics summary
    5:13 - What is metabolic slowdown/adaptation?
    9:02 - Do bigger/fatter people have "slower metabolisms"?
    17:28 - How to reduce metabolic slowdown when dieting
    19:04 - Do refeeds and diet breaks help?
    28:45 - Rate of weight loss (how fast to lose)
    32:48 - Misleading/inflated "maintenance calories"
    36:17 - Rapid fat loss/ crash dieting
    40:11 - How should you train in a deficit? (Decrease load or volume?)
    44:40 - Starvation mode
    50:58 - Metabolic damage
    59:20 - Reverse dieting

    • @abhinavpal1185
      @abhinavpal1185 5 лет назад +8

      Thanks

    • @rudylabsilica2286
      @rudylabsilica2286 5 лет назад +16

      OMG This is like a whole college semester! Taking notes, there might be a test after..
      Thank you!

    • @michaelbelmont3512
      @michaelbelmont3512 5 лет назад +5

      Will we ever see this type of sweetness on the very popular app, Spotify? The one with the sideways, green and black adidas logo

    • @george7451
      @george7451 5 лет назад +10

      jeff im very interested in the effects of intermittent fasting. multiple day long fasts and keto based refeeds interest me the most. i have seen that my metabolism in fact goes up massively at the end of fasting and i wondered if there was any truth to this

    • @deejayspillz
      @deejayspillz 5 лет назад +1

      Jeff Nippard check out the audiobook “Healing Back Pain” by Dr. Sarno. Life changing! Older book, but way before it’s time. Just check out the Amazon reviews and you’ll be sold.

  • @anareis8770
    @anareis8770 3 года назад +2055

    I have a 4-year degree in Nutrition Sciences (equivalent to being a dietitian in the US) and I can honestly say that Jeff's videos have taught me more about the practicality of that science than my degree. What you do is a public service. Thank you so much

    • @shoutxiao5459
      @shoutxiao5459 2 года назад +34

      I felt uni is totally waste money compare to Jeff's video

    • @laurynfromtheLAB
      @laurynfromtheLAB 2 года назад +37

      The 4 year degree is to get your feet wet. Similar to learning physics, it’s just the bare minimum. Imagine being told everything you were just taught isn’t the reality and if you really want to know physics you have to keep studying it. Same thing with nutrition, it’s better to keep studying and doing studies

    • @theastuteangler
      @theastuteangler 2 года назад +44

      @@laurynfromtheLAB lol what? 4 years of physics is absolutely not “the bare minimum”. The comment above demonstrates two things: quantity of education does not correlate with intelligence or even knowledge, and that the education system is simply a business and their business is to sell degrees and books.

    • @laurynfromtheLAB
      @laurynfromtheLAB 2 года назад +5

      @@theastuteangler I’m not disagreeing, just adding more reasoning to why a 4 year degree doesn’t mean you’re not educated in a topic

    • @LiveLifeWithLove
      @LiveLifeWithLove 2 года назад

      Well it maybe you had low GPA then 🤣 .. no punn intended ,😲

  • @caelenow2829
    @caelenow2829 5 лет назад +2800

    A doctor, professional bodybuilder, and a trainer?!? This dude is badass

    • @emprolken7082
      @emprolken7082 5 лет назад +19

      Lol 69

    • @bestboy007
      @bestboy007 5 лет назад +4

      so what does he say about reverse diet? summary please. yes or no?

    • @Sixdays_aweek
      @Sixdays_aweek 5 лет назад +3

      Dream guy

    • @mandalorian4620
      @mandalorian4620 4 года назад +7

      @@bestboy007
      Jump to 59th minute, they talk about it there.

    • @Zetsuke4
      @Zetsuke4 4 года назад +2

      Caelen OW boring

  • @OurFitFamilyof7
    @OurFitFamilyof7 5 лет назад +1026

    This is something where listening to it once is not enough. Grab a pen a paper take notes and listen to over and over again. Thank you Jeff always enjoy these deep dives!

    • @northwestmodernpestcontrol6020
      @northwestmodernpestcontrol6020 5 лет назад +1

      Our FitFamily Take Notes!

    • @milicakalinic
      @milicakalinic 5 лет назад +4

      Our FitFamily I was actually taking notes and then I saw this comment 😂

    • @uBmaniac
      @uBmaniac 5 лет назад +2

      Share your notes!
      (Please)

    • @christiandefosse2290
      @christiandefosse2290 5 лет назад

      Tottaly agree!

    • @igloo8439
      @igloo8439 5 лет назад

      I got a question I'm hoping someone can help me with. When they talk about fat loss from a weight percentage standpoint, are they talking about your current weight or your starting weight?

  • @emidarabderrahmane5893
    @emidarabderrahmane5893 4 года назад +654

    Jeff would hate me for that but anyway, lets make your life easier "badasse's" :
    5:40: metabolic adaptation
    9:00: do smaller people have fast metabolism and bigger people dont?
    10:35: NEAT concept
    12:05: leptin hormon and low testostern during metabolic adaptation
    14:25: individual differences in quicker metabolic adaptation
    17:35: can diet breaks fix metabolism adaptation
    24:45 : how to attenuate the causes of low metabolism
    29:24: the best rate of weight loss
    37:20 : loosing fat without losing muscle
    40:15: in a caloric deficit diet shift weight volume into more reps
    45:00: starvation mode and losing weight
    49:12: water retention and losing weight
    51:36 : metabolic damage is recoverable
    59:00: have plenty of recovery time
    1:00:00: maintening your physic after your diet is ended

    • @laureng2820
      @laureng2820 4 года назад +6

      Thank youuu God bless

    • @Tyler-ei7gn
      @Tyler-ei7gn 3 года назад +2

      Love you

    • @alenawildner
      @alenawildner 3 года назад +26

      Emidar Abderrahmane it’s all in the bio already I guess he won’t have a problem with it😂

    • @robertog2053
      @robertog2053 3 года назад +1

      Alena lmao

    • @alicetinoco9113
      @alicetinoco9113 3 года назад +1

      UP!

  • @samwaite1421
    @samwaite1421 5 лет назад +540

    Knees weak arms are heavy. Dom Mazetti

    • @MasturbaterPlaysMC
      @MasturbaterPlaysMC 5 лет назад +57

      His legs spaghetti

    • @housinauthority5258
      @housinauthority5258 5 лет назад +4

      He's nervous

    • @johnsontan345
      @johnsontan345 5 лет назад +6

      Mom's spaghetti

    • @theivious
      @theivious 5 лет назад +12

      ....cant u feel it guys??? there u go, its the vernal equinox! we cant do legs day today

    • @ThebirdmanTrainer
      @ThebirdmanTrainer 5 лет назад +14

      .....But his metabolism sped up already, he lost pounds, but he keeps on sweating, belly not gone down.....

  • @Chris-yf2zs
    @Chris-yf2zs Год назад +71

    18:31 go for a slower rate of weight loss, smaller deficit. Body responds better in terms of metabolic rate, hormones and loss of lean tissue. Refeeds and diet breaks are also an option.
    ***1:01:00 slow rate of weight loss plus go to maintenance every fourth week
    21:45 sustainable weight loss
    27:30 cardio not the answer while cutting
    30:00 lose around 1% of weight a week
    52:00 time to heal metabolic damage
    58:20 harder if you don’t give time in between cuts

    • @Magnulus76
      @Magnulus76 6 месяцев назад

      I hope in the future the weight loss industry gets the message. The reason short term weight loss doesn't work is it "destroys your metabolism", esp. the loss of lean muscle mass. This is especially a problem for people that are just moderately overweight or skinny fat, dieting can set them down a dangerous road headed towards cardiometabolic risk factors.

  • @osse1n
    @osse1n 5 лет назад +652

    Screw Netflix, here you have a documentary. Jeff, maybe you should start doing documentaries? Maybe hire a crew.

    • @JasM3dia
      @JasM3dia 5 лет назад +12

      For sure he should! His voice fits it so nicely too! 🙌

    • @garrysanon3415
      @garrysanon3415 5 лет назад +3

      Ok

    • @CarlosMedina-jc3nu
      @CarlosMedina-jc3nu 4 года назад +4

      This reminds me that Veritasium did a documentary on vitamins, if Jeff does one on macronutrients and metabolism I'll definitely watch it.

    • @centroverge
      @centroverge 4 года назад +1

      i'm a filmmaker im down to do this

    • @magicmoonart
      @magicmoonart 4 года назад +1

      People said that about his girlfriend's video Stephanie Buttermore

  • @blaker4280
    @blaker4280 5 лет назад +161

    Possibly the best information on weight loss I've ever seen. Nice work fellas.

  • @zntpt
    @zntpt 5 лет назад +1012

    Oh man, long Jeff Nippard diet video. Time to grab some extra butter popcorn and learn how to be healthy

    • @zntpt
      @zntpt 5 лет назад +44

      @Zechs Marquise hell maybe I'll swap the popcorn out for fried sugar cubes

    • @MikeGubisch
      @MikeGubisch 5 лет назад +15

      Zack Nusser Training sugar cubes dipped in chocolate and fried *

    • @jordanpike5816
      @jordanpike5816 5 лет назад +38

      I got diabetes just reading these comments. Time to go make some fried sugar cubes I guess

    • @wyattbarefoot5411
      @wyattbarefoot5411 5 лет назад +9

      I believe fried butter, then roll it in the sugar cubes would be better 😂

    • @cordlefhrichter1520
      @cordlefhrichter1520 5 лет назад +7

      @@wyattbarefoot5411 Everything you guys are listing sounds very unhealthy! If you're so interested in health what are you doing eating fried sugar cubes!

  • @michelleuk4788
    @michelleuk4788 5 лет назад +220

    52:50 I can relate to this! Took me 12 months to get my menstrual cycle back to normal! This was due to PROLONGED low calorie diets! I am now eating wey more, lifting more & finally getting lean but in a healthy and sustainable way with a fully functioning cycle 👍👍🎊🎉🎊🎉💗💗💗💗🍩🍩🍩🍩✌😘

    • @TheCsePower
      @TheCsePower 3 года назад +2

      How long was your diet and what was the calorie deficit?

    • @7thCobweb
      @7thCobweb 3 года назад +3

      Chung David y'all insane askin these personal questions

    • @michelleuk4788
      @michelleuk4788 3 года назад +27

      @@7thCobweb Haha no it's fine, basically I started listening to my body and getting in tune with it, being sure to eat enough healthy fat, a lot of carbs, enough protein and fruit & veg. Limited cardio to 10-15 min and weights to 30-45 min to limit stress on my body and km too sore I dont go. So basically I focus on my overall health and nourishing my body as opposed to killing myself and starving myself. Hope that helps. Meggan Grubb my biggest inspo xx

    • @iluvjimin2782
      @iluvjimin2782 3 года назад +2

      Michelle UK did you do 30-45, and 10-15 a week or a day?

    • @JNM9397
      @JNM9397 3 года назад +3

      What did you do I was on a low diet and under eating and doing to much cardio 7 days a week. I up my calories from 1000 to 1700and now I’m gaining weight weight training 4 days a week . My lowest when I lost my period I was 135 and now I’m at 152 but don’t want to go back to 195 when I was very unhealthy at that time

  • @fredsonii5966
    @fredsonii5966 5 лет назад +256

    I‘m normally in bed by ten, even on a weekend. Decided to delay that for once in order to listen to the interview. It’s 11:15pm now but it was totally worth it. Very informative and enjoyable at the same time. The chemistry between the two of you was so good. I hope Eric will be back on your podcast at some point. Thanks, Jeff!

    • @deejayspillz
      @deejayspillz 5 лет назад +11

      Fredsonii Graf X2 speed chipmunk mode lol. Watched it in just over 30 minutes. :)

    • @uBmaniac
      @uBmaniac 5 лет назад +2

      @@deejayspillz underrated comment

    • @theexipureteam3460
      @theexipureteam3460 2 года назад

      What i noticed after an aggressive cut was that no matter how much i ate, id still be starving. It literally felt like i could eat anything at any point. Another thing was just overall fatigue after the diet and lack of libido for a long time. Probably fine for obese individuals though.
      P.S: See the solution’’ on my’’chan’n’el - A newly discovered bizarre tropical fat-dissolving loophole that has NOTHING to do with dieting or exercise... (in fact eating your favorite foods is recommended!).

  • @jacquelinearthseed76
    @jacquelinearthseed76 5 лет назад +31

    Thanks for this Jeff. I love that you have real academics on here to get through the NOISE on social media. We need to be prioritizing “evidence-based” thinking in all fields but especially in fitness. Ideally it happens when scholars and real practitioners come together.

  • @xtraOrdinaryAthletes
    @xtraOrdinaryAthletes 5 лет назад +22

    Great topic! Often get asked about metabolic slowdown and related issues, both online and with clients. Can't wait to see you guys go through this in such detail!

  • @davidrohland9319
    @davidrohland9319 4 года назад +5

    Absolutely the best, most informative content I have ever viewed on RUclips - thank you both!💪🏼

  • @derekflorimonte773
    @derekflorimonte773 4 года назад +1

    Been following you for a while, and honestly, you are amazing! Such in depth analysis, such inspiration to find out myself, so articulate, professional and respectful and honestly a very friendly aura that you can't help but be drawn too! Thanks for your work!

  • @matthewnash8556
    @matthewnash8556 5 лет назад +151

    I LOVE these long discussion style videos, such great content. Keep it up Jeff!

  • @megs_ae1617
    @megs_ae1617 5 лет назад +4

    Thank you for having this as a podcast! I started the video to my dog looking at me with her “can we go for a walk eyes” and thought to myself “i wish this was a podcast” just in time for you to mention that it is in fact one! New to your channel and super excited to watch and listen to more of your content!

  • @elizabethrios2005
    @elizabethrios2005 5 лет назад

    Thank you so much for taking the time to provide this type of information to us.. and for free! It’s much appreciated and it helps me expand my knowledge. Your videos are awesome Jeff 👏🏽

  • @MrGflan
    @MrGflan 5 лет назад +26

    This was so monumentally helpful for me Jeff. I’m stuck at 150 pounds and I think I may just be lacking sleep and too much cortisol, stress. I’ll look into the thoughts provided here. Thank you fellas.

  • @deboraharnaut989
    @deboraharnaut989 3 года назад +8

    Fantastic content. I’m glad to have watched this early in my “fitness journey”. Everyone trying to lose weight / reduce body fat should know about this. Thank you both!!!

  • @motivatenate5463
    @motivatenate5463 5 лет назад +6

    I love your videos being an aspiring body builder. You’ve helped me learn a lot of important information and increase my overall size by leaps and bounds. Keep up the great content

  • @maryannewolter8690
    @maryannewolter8690 2 года назад +2

    What a great interview, thanks for covering actual science based topics - y’all did such a good job breaking down and making it understandable to an everyday person trying to learn

  • @b.n7787
    @b.n7787 5 лет назад +1

    One of my favorite podcasts! Thank you so much, Jeff!

  • @americandemon7626
    @americandemon7626 5 лет назад +22

    Jeff has a fanboy smile through the whole thing. He's so excited about this and it's so wholesome.

  • @3rKoPlaysMinecraft
    @3rKoPlaysMinecraft 5 лет назад +8

    Finally a video to show when someone asks a very specific question about metabolism expecting a yes/no.

  • @wanttoseeafight
    @wanttoseeafight 5 лет назад +1

    So glad I found your channel, I really appreciate the way you show the science behind nutrition and exercise. I don't really have the drive to look through scientific articles so thank you for doing the research for us and condensing the important information so we can focus on the important parts. Please keep up the great work you're doing to debunk misinformation and help everyone understand these topics.

  • @picasssothegrate2727
    @picasssothegrate2727 3 года назад

    This is so underrated for the amount of information it gives. Thank you so much this topic has been stressing me out like crazy.

  • @Kronosbattlemaps
    @Kronosbattlemaps 5 лет назад +3

    This was an amazing interview with some very valuable and insightful advice. Awsome stuff @Jeff. Keep em coming

  • @Reid0898
    @Reid0898 4 года назад +3

    This is up to date one of the best videos I've seen so far

  • @Alesini100
    @Alesini100 3 года назад +1

    Wow! Exactly what I needed! This is the best information on metabolism and reverse diet that I've found so far. Thanks so much for sharing!

  • @alicialacroix
    @alicialacroix 3 года назад +3

    Wow, this is the most useful resource about weight loss I've found to date. Thank you so much for putting this out for free consumption!

  • @kaylaknoxxx4834
    @kaylaknoxxx4834 3 года назад +51

    Loved all of this! until 46:40 when you say "people who are actually starving" this is only referring to marasmus, when you see pictures you will also see bloating. This is called kwashiorkor, caused by a sever lack of protein. Then in America the homeless (I was homeless myself at one point) will go days without food, and then be given pizza, or fried food from the food pantry, with no where to store food you have no other choice than to eat what is given to you, whenever it is given to you. This causes it's own problems. Before I was homeless I was practicing martial arts 5 days a week, and I saw serious changes to my metabolism during my homelessness. I think it is important to understand malnutrition is indeed rampant in every country. That being said, as I am not homeless anymore and very interested in this topic, so I will continue, this is still a wonderful video.

    • @TheHaiku2
      @TheHaiku2 2 года назад +8

      Yeah, so Kayla. You understand that he wasn't saying people couldn't starve right? Or that homeless/starving people don't exist, right? He was only saying that the term "starvation mode" as it's used in the fitness community isn't really a thing. Such that, it's never true that that the reason a person isn't losing weight is because they're not eating enough. People don't lose weight because they're eating too much.

    • @ellize1998
      @ellize1998 2 года назад

      not every country tho, but it is in america yes because capatalism is basically a religion there

  • @julietamagnetto7357
    @julietamagnetto7357 4 года назад +29

    I was getting anxious because I'm about to finish my diet and wasn't sure if to reverse diet or not and then this video comes up in my recommended. Thanks algorithm lol

    • @detectivejonesw
      @detectivejonesw 4 года назад +1

      Ikr, it came just at the right time for me too to implement a diet break

  • @spotsill
    @spotsill 3 года назад +33

    When recovering from an eating disorder metabolism damage is real and psychologically regaling fat to your body set point is definitely a struggle

  • @nogheadz4987
    @nogheadz4987 3 года назад

    Really great inteview. Excellent questions and hosting from Jeff and great insight from Dr. Trexler. Thanks to both!

  • @taylabubeck_
    @taylabubeck_ 5 лет назад +12

    This was one of the most interesting / informative youtube videos i have watched in a very long time - thank you both!

  • @lorie_a_
    @lorie_a_ Год назад +7

    I was looking for a long, well-explained video on reverse dieting and not one of those shorter ones. Not that they're necessarily bad but I like to understand so I was hoping you'd pop up in the results and oh how happy am I that you did! This was an amazingly well-informed, informative video!

    • @brokenhero6828
      @brokenhero6828 Год назад

      We got this Lorie! We gon be fit like NCT and BTS 🫡
      I found that resetting my diet has been helping a lot

  • @josephhamilton6832
    @josephhamilton6832 5 лет назад

    An hour plus of some great listening. As soon as I saw this yesterday I saved it to my watch later so I could listen to it at breakfast. Definitely one of my favorite video formats. Keep it up man.

  • @John-vb5or
    @John-vb5or 3 года назад

    Hands down the most informative nutritional video I’ve ever seen. Thank you both for this!

  • @laylarahman11
    @laylarahman11 4 года назад +20

    Am I the only person who gets just really good energy vibes from Jeff Nippard? He's just such a great guy.

  • @hanineel-rifai7982
    @hanineel-rifai7982 5 лет назад +10

    Love this so much! Have currently started reverse dieting, and I was a bit confused about how aggressively to approach it.

  • @nataliaramirez1290
    @nataliaramirez1290 3 года назад +1

    Thank you for going so in depth in the metabolic damage / recovery section. It was very insightful and, in all honesty, it gave me some hope, guidance and peace of mind.

  • @kappy_prasad
    @kappy_prasad 3 года назад

    Probably one of the best nutrition breakdown I have ever come across on the internet. Thanks Jeff well done on this.

  • @devonott3
    @devonott3 5 лет назад +23

    This video was so refreshing, informative, and interesting!! It would have been really helpful to hear Dr. Trexlor elaborate more about amenorrhea, especially the best way to recover from that for female athletes who aren’t necessarily competing or at a scary low body fat - just training really hard. For its prevalence in the fitness community, it’s hardly ever talked about and I think that should change.

  • @alihammadshah
    @alihammadshah 5 лет назад +3

    You channel is a fracking gold mine mate. Thanks a lot.

  • @frankhayes1135
    @frankhayes1135 2 года назад +1

    Simply one of the best well presented discussions of this whole topic. I have found it so informative and it ties in so well with my own experiences. Really well done - thank you.

  • @stephcoops
    @stephcoops 5 лет назад

    Loved this ❤️.
    Thanks for always putting on science based info on in any easy to understand way. I love hearing the info directly from the actual ppl too. Thanks. I love your channel! Good mix of everything

  • @hermionegranger2484
    @hermionegranger2484 5 лет назад +7

    I’ve been needing to watch this for so long! I learned so much 👏

  • @forhealth5730
    @forhealth5730 5 лет назад +7

    Jeffs face throughout the whole interview showed total joy and passion. Really enjoyed this.

  • @fleetwoodmacsexpants
    @fleetwoodmacsexpants 5 лет назад +2

    Always appreciate the informative, quality material you put out, Jeff!!

  • @user-zh6gv2mh9l
    @user-zh6gv2mh9l Год назад

    Ive rewatched this soo many times over the years. Extremely informative.

  • @jackieweaver3884
    @jackieweaver3884 3 года назад +5

    I just heard about this concept and was looking for a good explanation, this video is a thorough research! Helps a lot, thank you

  • @dimanaboytcheva7078
    @dimanaboytcheva7078 5 лет назад +5

    Just wanted to say I really appreciate what you're doing and the content you're producing. Keep going!

  • @jerremyvinson6310
    @jerremyvinson6310 5 лет назад +1

    This video just blows the roof off the diet and exercise industry such great content.

  • @curtisinhouston4120
    @curtisinhouston4120 2 года назад

    Found you through binge watching Sean Nalewanyj vids and am stoked that I did. Exercise noob here and I'm so grateful for people like you guys to be putting out top tier content 🤙

  • @davidbullard3036
    @davidbullard3036 5 лет назад +7

    Can’t tell you how many times I’ve told people “starvation mode” is a fallacy. Great discussion. Love the content. ❤️💪🏼

  • @yegetatariku6222
    @yegetatariku6222 5 лет назад +39

    My notes, ladies and gents, hope it helps. Also, I recommend you listen to it yourself. Not only is it possible that I made mistakes but also it's a great informative video so yeah check it out.
    Components of metabolism:
    TOTAL DAILY ENERGY EXPENDITURE aka Metabolic rate= Resting metabolic rate + Specific dynamic action/thermic effect of food/or dietary induced thermogenesis+ none-exercise-activity thermogenesis (NEAT) + exercise-activity thermogenesis.
    Smaller people have a lower metabolic rate. Leaner people have lower metabolic rates. Diets that result in weight-loss lower metabolic rates. Leptin, the most influential hormone when it comes to determining metabolic rate, decrease dramatically within the first four or five days and then continues to do so but linearly for the rest of the duration of the diet. Another things, like the production of reproductive hormones like testosterone, slows down as the diet goes on. Some people's metabolism adapts amazingly; these people are weight-gain resistant and the doctor speculates that these are the same people who don't struggle as much when losing weight.
    Question: is there a way to limit the adaptation to continue weight-loss and break through weight plateaus?
    No matter whether one is of the type whose metabolic rate adapts fast or slow, the goal should be to control this rate. So we can either deal with the causes or effects. The causes are: how big the energy deficit is; how long one has been dieting; how lean one is.
    Therefore, to deal with the causes, one can slow down their weight-loss rate by lowering their energy deficit or implement two refeed days in a row or implementing diet brakes. Take your time, if you can afford to, to get to a body-weight that is maintainable.
    The effects include loss of lean mass and performance decrements. A slower rate of weight-loss with appropriate distribution macros helps maintain lean mass and performance. Also, train smarter; train in a way that means giving time for proper recovery. Cardio is a recovery burden; therefore, avoid doing an excessive amount of cardio and also strength-training.
    Doc recommendations of a rate of weight-loss: lose 1% of body weight-loss per week. For a more linear approach 0.5% of body weight-loss per week especially towards the end of the diet. More than 1% if you are starting with a high body fat percentage. 15 to 20% of a caloric deficit. 300 to 400 calorie slash.
    NOTE: these are estimates. see what works and doesn't work and adjust accordingly.
    Crash Dieting: it is not absolute suicide especially if you are not going down to extremely low body fat percentage. It's a viable option especially when the goal isn't to be as lean as possible with the most body muscle and the least body fat. If there is no necessity to do so though, don't crash diet.
    Training in a deficit: When a point in training where glycogen levels are low and recovery isn't as it used the be, lower reps and increase volume. The opposite could be true as well.
    Starvation mode: this is a dramatic way of referring to metabolic adaptation. There is no mode where the lack of weight loss or weight gain can be explained by eating less or starving. If one is for sure in a caloric deficit and not losing any weight, other explanations are at play. Other explanation: NEAT drop and water-retention. Cortisol induces water-retention. Cortisol= weight training, dieting, cardio + stress. Solution: take a break and recover; eat maintenance-level calories and skip the gym.
    Metabolic damage: this is reversible. One can recover. The more rigorous the down-regulation, the more effort and time the recovery requires. Recovery is muti-facilitated. However, given a reasonable rate of down-regulation, recovery should start happening in the first four to six months.
    Maintenance of a good but not crazy physique: slow rate weight loss and diet breaks namely eat maintenance every fourth week. Linearly eat maintenance or for example, to accommodate a big cook-out where you will be overeating, having a low-calorie day or days before it. When maintaining, you can also increase your intake slowly while keeping your eyes on body-weight and body fat.
    Reverse dieting:
    For Competitors: YES! Recovery Diet. Increase calorie carefully though; there are a lot of factors that go into re-feeding and recovery.
    For the rest of humanity: a recovery diet is not necessary when the body fat percentage is not too low and therefore maintainable. Slowly introduce more and more calories, this will mean less recovery but it's fine you don't need it as you haven't done anything that needs recovering from, to re-establish a maintenance level.

  • @jennyrstanley1
    @jennyrstanley1 5 месяцев назад +1

    Great episode! Reverse dieting works and helper me recover from disordered eating at 1000 cals/day up to 1800 a day. I added a dedicated strength training regimen, cut my intense cardio way down and the results have been wonderful. Can't recommend it enough to those who eat too little and work out too hard. Eating way more, have a lot less body fat and visible muscle definition.

  • @cooltroop2
    @cooltroop2 4 года назад

    Thank you so much for this great knowledge, Jeff and Eric!!!

  • @angelanicolesolis
    @angelanicolesolis 5 лет назад +3

    You guys literally have the most soothing voices, it’s as if I’m listening to Neil deGrasse Tyson. It’s truly beneficial because I’m actually soaking up all of this information rather than forcing myself to listen to say a “mono tone” or too high pitched of a voice. Keep up the great content!

  • @AllTheGo0dNamesRGone
    @AllTheGo0dNamesRGone 5 лет назад +4

    Thank you!! just finished my cut and been looking for more info on the reverse diet. Perfect timing as always Jeff

  • @archdomster9446
    @archdomster9446 2 года назад +2

    This is so awesome, and very helpful to me. I'm not a body builder by any means, but I do have a body goal that I've been trying to get back to. I've been on an emotional rollercoaster ride because of stuff not panning out the way I expect to, and end up getting fed up and slightly depressed. You're on the money about managing expectations. I love all of the information. would love more stuff from you two. :)

  • @SiddhantRaiSikand
    @SiddhantRaiSikand 5 лет назад

    Much needed video, thank you Jeff, your videos are amazing as always💯. Love from India♥️✌🏻

  • @jgall2810
    @jgall2810 5 лет назад +7

    Jeff out here providing quality content

  • @stigie007
    @stigie007 5 лет назад +10

    Amazing content man!! Could you do a video on posture? I think good posture really. affects your aesthetics. Really curious about the science and proper way to improve posture. Thanks

  • @Asdfbedffhdsxe345
    @Asdfbedffhdsxe345 2 года назад +1

    This is a great video, it answers a lot of questions I’ve had which has helped me on my weight loss journey.
    I was cutting to get ripped, doing fasted cardio 7 days a week and weights 5 evenings per week, after two months i couldn’t lose anymore body fat, I was on a super strict diet and I’m very disciplined... I spoke to a couple of guys who explained that my body had adjusted and now it was time to give it a break

  • @stoatythesecond888
    @stoatythesecond888 2 года назад

    This is awesome Jeff, there's so much quality content in here, thanks for posting,

  • @brittanyevans4974
    @brittanyevans4974 5 лет назад +36

    This is amazing Jeff. Refeed for 2 weeks after my weightloss stalled. After losing 23kg (in 18months) I have 7kg to go to my goal of 70kg and this knowledge is so great for doubts and the fustration that comes with getting to that first goal. Love these scientific videos you and Steph do. X

    • @NoName-to5xl
      @NoName-to5xl 2 года назад +3

      Hey lost 25kg in 18 months at 1800 calories as well!!! I am stalled for 1.5 months. I am refeeding at 2100 calories.
      How did your refeed work?

    • @bodhisattva6308
      @bodhisattva6308 2 года назад +1

      @@NoName-to5xl I have been on 1800 since August 2021 and lost 15-18 lb. I took breaks in between. No break in diet since Jan 2022. My progress is slow now at half lb loss per week. I am at 21 % body fat male. Should I refeed? any thoughts

    • @TheSyedraiyan
      @TheSyedraiyan 2 года назад +1

      @@bodhisattva6308 yes

  • @meritu985
    @meritu985 4 года назад +34

    0:00 - Intro and topics summary
    5:13 - What is metabolic slowdown/adaptation?
    9:02 - Do bigger/fatter people have "slower metabolisms"?
    17:28 - How to reduce metabolic slowdown when dieting
    19:04 - Do refeeds and diet breaks help?
    28:45 - Rate of weight loss (how fast to lose)
    32:48 - Misleading/inflated "maintenance calories"
    36:17 - Rapid fat loss/ crash dieting
    40:11 - How should you train in a deficit? (Decrease load or volume?)
    44:40 - Starvation mode
    50:58 - Metabolic damage
    59:20 - Reverse dieting

  • @jamiebetker4137
    @jamiebetker4137 5 лет назад

    Incredible deep dive into this metabolism research. Love it! I am a cancer scientist, so getting basically a review article via podcast form on an area of research is so amazing.

  • @braydenrichards2119
    @braydenrichards2119 5 лет назад +2

    I'd love to see the upper/lower split you mentioned in the science applied push/pull/legs series. Been running the push/pull/legs for a couple months and have really been enjoying it. Keep up the great work!

  • @MikiDoodleMom
    @MikiDoodleMom 5 лет назад +8

    I think answered at 50:00. I've just made the changes. Staying away from the gym (back tomorrow, after 4 days off), and not obsessing. Trying to lower cortisol.

  • @raidersandkingsfan
    @raidersandkingsfan 2 года назад +3

    I’m a textbook case of someone with a crazy adaptive metabolism in both directions. Back in college I used to eat like total garbage. I would binge eat an entire 2000 calorie pack of Oreos just as a snack on many days and that was on top of all my other meals from the cafe. Despite this, I never got above 230 lbs. I was definitely overweight, but I should’ve weighed way more based on how much I was binging. Fast forward a few years and I got in great shape, lost probably 50 pounds of fat, gained maybe 20 pounds of muscle and was six pack lean. I lost a lot of this fat right before going on vacation to an all you can eat and drink resort so my metabolism was at the end of a diet. It was a 7 day trip and in those 7 days I gained 20 pounds. Even after losing the water weight from the trip, I was still up 15 pounds in 7 days and that weight didn’t come off. My abs were completely gone. Yes I was eating out a lot but there was no way I was eating 10,000 calories per day on that trip. That experience alone was enough to prove to myself that metabolic adaptation is very real.

  • @Alicia.Barreto
    @Alicia.Barreto 3 года назад +2

    This video was absolutely amazing and informative and i loved that I understood every bit of it! ❤️ thank you

  • @wayneburchell1362
    @wayneburchell1362 3 года назад +1

    This was exactly the information I was after. Thanks for the awesome video Jeff.

  • @TheROFF007
    @TheROFF007 5 лет назад +7

    i was waiting for this informations for a long time, thanksss again Jeff keep it up with the goodies

  • @Neesha242
    @Neesha242 Год назад +5

    Thank you Jeff for this video this means a lot to me and the information is so helpful! 💗

  • @vidyist
    @vidyist 5 лет назад

    I enjoy some of this from time to time. Very helpful jeff thanks.

  • @ArkitectFitness
    @ArkitectFitness 5 лет назад +1

    Hey Jeff, love the content. I also appreciate that you are taking the time to put out well produced videos. Lighting is on point, audio seems decent on my phone, but you should shoot these in 24FPS man!

  • @enigmatictrash
    @enigmatictrash 5 лет назад +4

    Very useful information. I'm on a diet break myself, ive been eating at matinence for the past two weeks and really havent seen any difference in overall fat gain in the mirror but i have been putting on size. This is after a 3 month cut, with one to two re feed days at matinence or a slight surplus a week. I'm about to go back into a cut so im really excited to see how i lean down after this diet break, and see how my metabolism reacts to being in a deficit again. Anyways lol great talk! Love your work 🙏

  • @eyeinsee
    @eyeinsee 3 года назад +3

    Thanks Ryan Renolds this was informative

  • @thorstormlord
    @thorstormlord 4 года назад

    This was a great talk, great guy that dude knowledgeable and humble.Absolute respect

  • @DinosaurousDani
    @DinosaurousDani 4 года назад +1

    This was an incredible listen! Thanks!!

  • @tokkia1384
    @tokkia1384 5 лет назад +7

    This happens to females to! I “maintain” at around 3000 cal but then when I start cutting I need to drop quite a bit (though still not as low as some women). Watched this one three times, so much valuable info here! I think this really chimes in with some of the research done recently on the constrained energy expenditure model. Really looking forward for the supplement video!

    • @niccolomachiavell
      @niccolomachiavell Год назад

      Same. I can’t lost until I get to around 1k calories but maintenance calories are sooo much easier around 2-3k

  • @comando293
    @comando293 5 лет назад +11

    Do a part 2 about gaining weight.

  • @peterhippolite-webber612
    @peterhippolite-webber612 2 года назад

    love your work jeff. Fantastic knowledge for others to gain easy access to.

  • @aniqose6641
    @aniqose6641 5 лет назад

    I would absolutely love more podcast-type content. This was great, ty Jeff

  • @amandaklempel4028
    @amandaklempel4028 5 лет назад +5

    9 weeks out and just got 2 re-feeds added. Sweet baby Jesus, life is good again!!!! Thanks for the awesome video.

  • @Dan-zg8wr
    @Dan-zg8wr 5 лет назад +13

    Hey Jeff, the mentioning of cortisol levels got me thinking about CBD and the reduction of cortisol levels. Have you come across any literature that supports the use of CBD while training?

  • @christopherburgdorf398
    @christopherburgdorf398 3 года назад

    Love the high quality of information in your videos

  • @Sardy540
    @Sardy540 3 года назад

    What a legend. Awesome chat, thanks Jeff, from Australia.

  • @karadambra7139
    @karadambra7139 4 года назад +24

    Hey Jeff, just wanted to ask, I’m part of the group that is on a deficit just to cut down not for any specific thing and doing it slowly...Would you do diet breaks(1-2 weeks maintenance) as well as a one or two refeed days while Dieting slowly or would you just choose one or the other?

    • @jiwoos19
      @jiwoos19 3 года назад +9

      Just diet slowly. You don't need diet breaks or refeed days if you are taking it properly slow, like less thab 1 percent bodyweight loss per week.

  • @brianfarner9893
    @brianfarner9893 5 лет назад +3

    Fascinating discussion! I planned on listening to the first 10 minutes and couldn’t unglue myself. Thank you for the knowledge share!

  • @helenmccracken929
    @helenmccracken929 2 года назад +1

    Thanks for the shout-out, from an 8% year round female fitness nerd

  • @godsgiftto3arth
    @godsgiftto3arth 5 лет назад +1

    this is a subject I've always wanted to know more about but its so vast that I could never start. this video was an excellent gateway into the subject

  • @edishaji9378
    @edishaji9378 5 лет назад +8

    Hey, Jeff, been watching you for quite some time now and I must say your content is very one of the best out there so please keep going. Anyway, I was wondering on your thoughts about the correlation of wrist circumference and biceps size. Is there any and if so how significant is it? Have a great day!

    • @cordlefhrichter1520
      @cordlefhrichter1520 5 лет назад +1

      There's an equation you can look up where you measure your wrists and ankles and it tells you how much muscle your frame can hold. It's ridiculously accurate based on just those inputs.

  • @lemonpledge7093
    @lemonpledge7093 5 лет назад +54

    51:36 "Nothing's permanent, Jeff." Yet Harambe is lost to us forever. 😔

    • @jahmd8377
      @jahmd8377 3 года назад +3

      Until he is cloned.

    • @johnccena6005
      @johnccena6005 3 года назад +1

      Ah I miss these days when harambe was the only problem

    • @WTFIWFYDB
      @WTFIWFYDB 3 года назад

      Only two certain things in life ...

    • @mhwelsh3551
      @mhwelsh3551 2 года назад +2

      this comment was like YEARS after Harambe's death you are a baller and i appreciate you so much

  • @xpaperxcutx4588
    @xpaperxcutx4588 2 года назад +1

    This video is the most informative and enjoyable one I have come across about metabolic adaptation ("metabolic damage") and really give me hindsight into how my past eating disorder affected my metabolism and physiology. I am now eating more than I have ever eaten in most of my teens and 20s and and I have strength to weight train and cardio.

  • @extremespartan117
    @extremespartan117 3 года назад

    Hey Jeff! I Appreciate the content you're putting out. Very helpful and informative.