If you want to get the best results from your workout, it’s better to exercise in a fasting state

Dr. Eric Berg DC Bio:
Dr. Berg, age 58, is a chiropractor who specializes in Healthy Ketosis & Intermittent Fasting. He is the author of the best-selling book The Healthy Keto Plan, and is the Director of Dr. Berg Nutritionals. He no longer practices, but focuses on health education through social media.

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Dr. Eric Berg received his Doctor of Chiropractic degree from Palmer College of Chiropractic in 1988. His use of “doctor” or “Dr.” in relation to himself solely refers to that degree. Dr. Berg is a licensed chiropractor in Virginia, California, and Louisiana, but he no longer practices chiropractic in any state and does not see patients so he can focus on educating people as a full time activity, yet he maintains an active license. This video is for general informational purposes only. It should not be used to self-diagnose and it is not a substitute for a medical exam, cure, treatment, diagnosis, and prescription or recommendation. It does not create a doctor-patient relationship between Dr. Berg and you. You should not make any change in your health regimen or diet before first consulting a physician and obtaining a medical exam, diagnosis, and recommendation. Always seek the advice of a physician or other qualified health provider with any questions you may have regarding a medical condition.

#keto #ketodiet #weightloss #ketolifestyle


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  1. @jamesriley5057 on November 23, 2023 at 9:25 pm

    I just did a water fast on Tuesday. It blew my mind because, while I did daydream about food after 24 hours, I felt warm and fuzzy inside. It was like I finally just felt cozy in my own body. I’m HOOKED

    • @melparkinson1680 on November 28, 2023 at 1:28 am

      A water fast makes me feel awful. My blood sugar drops and I feel light headed/dizzy.

    • @jamesriley5057 on November 28, 2023 at 2:07 am

      @@melparkinson1680 think about getting some sun or vitamin D3. I feel your pain. I dealt with low D and it’s the first step towards stopping food cravings

  2. @xeropunt5749 on November 23, 2023 at 9:32 pm

    I think it was a Japanese study, found that the time of day to exercise is irrelevant to fat burning. But a fasted state burns much MORE fat, and for a longer time – post exercise, vs a non-fasted state.

    • @whoknows8223 on November 23, 2023 at 10:50 pm

      I’d love to read that. But I guess you do not have the name of the study by chance?

    • @xeropunt5749 on November 23, 2023 at 11:02 pm

      I saw a video clip of it, I’ll be back if I can find it.🙏

    • @nikosogamias on November 24, 2023 at 1:33 am

      idk thomas delauer said its not that clear but says that u should still sometimes train fasted and fed.

    • @flipedude5404 on November 24, 2023 at 1:42 am

      @@nikosogamiasit’s simple, train fasted period.

    • @chucky3285 on November 24, 2023 at 10:29 pm

      That’s a good way to have nausea try doing pushups on a fasted state

  3. @eduardooramaeddie4006 on November 23, 2023 at 9:45 pm

    Thank you Dr.BERG

    • @Drberg on November 24, 2023 at 6:06 pm

      Most welcome!

  4. @williamkarl-gustafmoller8492 on November 23, 2023 at 10:15 pm

    If I’m 320 lbs of lean muscle then I’m going to eat whatever whenever.

    I’m not though, so this applies to me.

  5. @whoknows8223 on November 23, 2023 at 10:53 pm

    I weightlift on fasted state because I have more energy. Whenever I have food in my stomach I feel more tired.
    I did notice I can do around 2 reps more on a fasted state. Just coffee, green tea with lemon and a cold shower prior to really wake me up and dilate the blood vessels (because your body tries to heat up afzer the cold shower = better oxygen supply for the muscles)
    Edit: for the doubters. The digestive system binds a lot of blood & energy when its working. Thats why you get sleepy after a big meal

  6. @mariserobillard601 on November 23, 2023 at 11:00 pm


  7. @SteinVarjord on November 24, 2023 at 12:00 am

    It’s often a bit strange to watch your videos, since a lot of your recommendations are what I’ve done my whole life. I didn’t know it was called intermittent fasting until perhaps 10 years ago, but I’ve been eating mostly one meal a day since I was a teen, mid seventies. It just felt better. If I eat breakfast or lunch, I get tired and sluggish, so I only do that if it’s a social thing, perhaps twice a year. Just water until a late dinner, then straight to bed. I sleep like a stone.

    I prefer to do workouts in the early afternoon, mostly running, warmup and then HIIT, total 7 – 10 km, often on a threadmill, (we get enough rain). Usually some strength training afterwards. That means only water before and several hours after. Just as you say here. I lately kinda assumed it would fit the keto diet stuff, but I do it this way just because it feels good.

    I’ve worked out my whole life, in periods very hard, other periods not enough, but at 63 I still look younger than my years and run faster than most, no matter what age or distance. Pulse at rest, sleep, is around 43 and max is around 190. I think I might be an illustration that some of what you preach is correct.

    • @javierestrada8803 on November 24, 2023 at 3:28 am

      i like you

    • @javierestrada8803 on November 24, 2023 at 3:29 am

      i like your story, I like your truth. I appreciate the way you explain everything. I like

  8. @deborahhunt7448 on November 24, 2023 at 1:06 am

    Yes, this is so true! It’s better to build up and exercise in a fasting state! 😊

  9. @TJ-wo1xt on November 24, 2023 at 2:12 am

    A banane won’t harm. It actually helps.

    • @simonsananes8178 on November 24, 2023 at 2:17 pm

      I prefer protein before. No carbs

    • @fazdoll on November 29, 2023 at 8:06 pm

      No, bananas do harm. Too many carbs. You may not gain that much weight, but you won’t lose any either. That banana will also keep you in a state of low-level carb addiction, which can lead the backsliding and carb binging later. I found this out the hard way. It was only when I stayed in constant Keto, no crap about “moderation,” that I was able to get any weight off, very slowly. BTW if you’re young it might work, but if you’re age 40+, forget it; you can’t handle carbs.

    • @TexanWayBoy on December 8, 2023 at 6:48 am

      ​@@fazdoll ? carbs are the main part of muscle building and energy. ketosis has more energy levels to the brain then carbs but its hard to get that.

  10. @Funexpected on November 24, 2023 at 12:51 pm

    My mother in law was beside herself upset telling my fasting is the worst thing you can do. She is a retired nurse who believes everything she came up learning over 40 years ago. Hours earlier, she was upset and couldn’t believe i was saying kefir and raw milk is good for you. She is completely against butter, salt and red meat, but always brings us unwanted cookies weekly. So annoying.

    • @markreeves247 on November 24, 2023 at 2:40 pm

      Your mother in law is what we like to call healthwashed unfortunately

    • @justine3769 on November 28, 2023 at 6:00 pm

      Who’s eating those cookies? Tell her to stop bringing them.

    • @mr_green33 on November 29, 2023 at 3:02 pm

      that’s life’s way of testing you. seems like you’re passing the tests with flying colors! keep going and just smile whenever your mom argues otherwise. because you know the TRUTH. and the TRUTH will set you free.

    • @Funexpected on November 29, 2023 at 3:23 pm

      @mr_green33  Oh, no, I fail at every turn. I can sometimes resist my MIL’s cookies because she can’t bake and they stink, but I lack willpower and give in to all sweets.
      On the other hand, I eat healthy single ingredient whole foods and fast for about 18 hours most days. If the sugar wasn’t around, I’d still eat it, but less frequently.

    • @mr_green33 on November 29, 2023 at 3:45 pm

      ​@@Paul-ur4rh I relate to this so deeply. Cookies are my absolute weakness, as well as donuts. Combine that with a full glass of milk and… oh boy… self control is thrown completely out of the window. But hey, life is meant to be lived. Sometimes you have to let your dark side get it’s way.
      In my opinion, as long as you’re being healthy 80% of the time, you can afford to be naughty the other 20%. Whenever I try to do everything 100% right, I crash and burn rather quickly. Resulting in a rebound effect where I do everything 100% wrong for a period of time. My happy medium seems to be in following the 80/20 rule.

  11. @chrisfuentes2957 on November 25, 2023 at 12:01 am

    I absolutely agree with this. I actually tried this and noticed my midsection, Markedly decreasing in size. A combination of light weight lifting and running without eating afterwards worked best.

  12. @anthonypowell3869 on November 26, 2023 at 9:30 pm

    I did the keto with IF diat a year ago. The health benefits cannot be over stated. I went from 83kgs with no energy or stamina to 72kgs with motivation and no stress. Go for it long term and start to live again

  13. @jackie-k on November 27, 2023 at 9:17 pm

    I don’t know how people can exercise after eating. I have always felt better when I don’t eat before I work out. Now with the exception of training for 200mile rides on my bike, I do start off fasting or with a no or low sugar electrolyte energy drink or even black coffee. But I do snack in my rides because the hours I ride!

  14. @CeeceeWhip on November 28, 2023 at 6:45 pm

    This is sooooo interesting. So good to know this. This fasting process sure gives you time out of the kitchen and doing something better than constantly eating. Love keto and IF…. if it was only me I’d never be cooking more than once a day.

  15. @gambit633 on November 29, 2023 at 1:39 am

    I fast for a couple of weeks every 3 months. I can do light prolonged exercise during fast (4 hours at a dance social). But I avoid the gym at that time: if I do heavy weights I am starving afterwards… Guessing I am breaking down muscle with heavier weights and my body wants protein to rebuild.

  16. @stellarg11 on December 2, 2023 at 11:19 pm

    For a few weeks, I tried doing fasted hiit workouts. I would normally go throughout an entire day at work without eating anything and then go to hiit class after. What I found was that my body could not perform at the level that I needed to be at in order to do the exercises properly. So I changed it up where I would have a light late lunch a couple of hours before hiit class and that didn’t just improve my workouts but also helped me lose weight and progress with strength training.

  17. @user-pd8pt8ly3n on December 4, 2023 at 5:12 am

    Yes, this is absolutely correct. If you are fasting and do weightlifting and cardio, you are getting such wonderful benefits not only Building muscles, but also not dying from cancer or other nasty diseases. Your immune system goes up and snacking is should be shut down and you never want to take any of those nastyenergy drinks, protein bars, or anything that is prepackaged and being sold to you as food which there are only products they are doing nothing to you only making you sick

  18. @cathleendangelo185 on December 16, 2023 at 12:24 pm

    This is TRUTH , Thank you Dr. BERG …..Your videos have CHANGED my LIFE ❤❤❤❤❤

    • @Drberg on December 16, 2023 at 2:14 pm

      Glad I was able to help you. Stay safe and healthy!

  19. @somprad4362 on December 17, 2023 at 1:19 pm

    Can’t agree more doctor ❤

  20. @constanceachiaafranie138 on December 20, 2023 at 4:22 am

    Thank you, Dr. Berg, important and helpful.👌💪❤️

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