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49 Comments
@Dr.Eric Berg: I've studied fitness and worked in the profession for years and I'd like to ask you if you'd advise to do hypertrophy workouts on an empty stomach? EG: you eat in the evening, go to bed, wake up, train and than eat again. For me personally that would mean roughly 14 hours fasting. Would that be acceptable or would it compromise muscle growth?
What they teach you in school is that in order to provide the right energy for an hypertrophy workout (4×10 reps 80% max capacity load) your body needs to use glucose to produce energy (anaerobic lactic system), for this intense kind of effort it can not make energy from fats. There is only a limited amount of glucose available in the blood, when that is over, the body turns to glycogen but once the glycogen storages are also finished, glucose must be created through gluconeogenesis, and if I'm correct, a significant part of the fuel used in this process are muscle proteins. Some articles state that when fasting from the night before, you've got 20 minutes autonomy before your glucose and glycogen reserves are over, than the body begins breaking down your muscles, that's why it is absolutely not advised to train while fasting if your goal is to gain lean mass/muscle mass.
What is your stance on this?
Thank you.
Ramadan has no benefits at all. Overeating at night, especially sweet dishes, which are part of whole so called "fasting" is pbviously not good for you especially if you will going to sleep with full stomach.
Ramadan ❤️🤙🏾
Im on a prolong fast, I started straight traing and my heart hurts! I took electrolytes, so its not that
Can someone pls help?
Can I break my fast with 1 egg then after 30 mins I'll eat my meal
In the month of Ramdhan we Muslim's really fast and exercise five times a day as well as in taraweeh. Dr berg cleared the benefits of fasting as well as excercise ❤❤❤
Let it be said. Let it be done. Let it be written.
Is this for intermittent fasting or does this also apply for prolonged fasting 5 – 7 days??
Ramadan started and here I am 😂
Thanks Doc. You are a gem and much appreciated.
How about taking pre-workout?
How long can I go after my morning workout without food? I’m looking to hit an 8pm-noon fasting window
4:50
"Work out" is the phrasal verb and "workout" is a noun. So, the headline should read: "Should I work out while I'm fasting?". Please contact me for a good discount on proofreading 🙂
Dr Berg, thank you from the bottom of my heart ❤ your videos reshaped my life
Thanks for the great info Doc!
Someone said you can continue to grow muscle with hgh alone
I can be all day without eating, exercise and then one meal at day?
eating before exercising makes me feel nauseous and absolutely sick. it's obviously a myth, or I'm abnormal.
Question! Dr. Berg, I appreciate your content but this video has me questioning the validity of your advice. If you strength train in a fasted state, aren't you burning muscle before burning fat? You're in direct conflict with what Dr. Peter Attia says about strength training while doing intermittent fasting. I'd love to know your thoughts.
I've been following you for YEARS… and LOVE your thirst for knowledge! I've been eating low carb clean with IF for a few years (17/7) and recently started doing weight training near the end of my fast. I take only 1,000 mg Taurine in the AM. I then take YOUR electrolytes, 2.8 grams Beta Alanine and 600 mg DMG during my work out. Because all the lactate buffering I get, the limit during my work out is a BODY HUNGER that is UNREAL. It is a totally different "HURT" then a muscle burn that is normally felt. The only issue is that it makes you CRAVE more sets and volume… as intuitively, my body knows something GREAT is happening. I just started doing my leg work out fasted and I am surprised how strong I am getting. At 67, I am squatting 480 lbs. When I turn 70, I am planning on breaking the world record of 365 for a 70 year old at 198 lbs. FASTED WEIGHT TRAINING WORKS! Thanks for allowing me to understand WHY!
Thank you Dr. Berg i've been following you for three years now , you've changed my life .
My next step now is to start working out while intermittent fasting and your videos really help me and guide me towards success, everything you say works for me i'm 57 years old my wieght was 220lbs. three years ago now I'm 175lbs. working in construction and full of energy all day long
Thank you again.
I started working out fasted about a month ago. After the workout I feel amazing but in terms of the actual workout, I have lost a ton of strength and my performance decreased drastically. I can’t find a solution so if you can help me I would highly appreciate it
Yes
And yes
That is a win. I was using carbs dirty keto, and I was taking walks up to 50 min over 4 hours and a cold shower to help with digestion and neurochemical stimulation for motivation and reduce stress. I can do these walks while in a fasted state, and that should improve things. More repair would mean better recovery from exercise, and I would be better rested.
I fasted for 27 days and now i can fly! But really i love fasting lol
🙏🙏❤️
Can we take vitamins during a fast?
I have a question, what if you’re trying to eat once per day, but you have diabetes and you do high cardio exercise?
Just here to confirm Dr Berg's information. I always lift in a fasted state, and I have more energy now than I did 30 years ago while trying to lift at the end of the day after eating. Another added benefit is no more acid reflux while lifting. At 62 y/o my wife and I workout about 2 hours every day. The only reason I leave the gym is because the wife is ready to go. I could stay for hours but, happy wife, happy life.
I never eat before my workouts..it's crazy all I drink is apple cider and lemon..I have great energy and no fatigue at all..I then eat after the workout and fast for another 12 hours thereafter
Do you practice this daily?
can i drink coffee with milk or tea while fasting 😅
Dr Eric, i have a question, if my eating window is at 9am, if i workout around 5pm is that consider exercise while fasting? I start working at 430am, i eat at 9am or 930 am and work out at 5pm and i would like to get the benefits of fasting! — thank you for your response!
What if you eat right after your fasted workout, Wouldn’t your system still burn the calories you just ate instead of your fat ?
Why does my hunger disappear and I get more energy when I exercise (swim) while fasting?
nice
Save on breakfast and have more energy to work out , a win-win!
noticed cardio works best for me early in the morning on an empty stomach maybe i would have 1 boiled egg so i drink my coffee. Lifting is better early evening around 17:00 after my main meal with is in the afternoon. Its difficult to sleep at night having chronic insomnia and if i eat anything close to my sleeping hours it makes my insomnia worse so more i exercise less i eat better my sleep
If fat adapted try it, if not it might be painful.
My workouts are suffering big time since starting Keto 3 weeks ago. I workout first thing in the morning on an empty stomach. I used to be able to kill a 90 minute HIIT workout, but now I can barely make it through it. I’m weak.
Help!!
Workout early fast through the day workout before bed. Whew the loss
You are outstanding Doc everyone needs to hear your advice it's golden. Im starting a 16 – 21 day fast this Saturday so am anxious because I know the first 3 – 7 days will be hard but I love training so thank you
Should i excercise during a long term fast?
How to have a good recovery? Just resting? Or stretching?
Thank you doctor
I love u Dr.Berg!
With water or without ?
In regards to consuming carbs prior to physical training: If you are in ketosis (through diet and fasting) and your intent is to gain muscle mass, is it more beneficial to break your fast by consuming a large portion of your daily allotment of carbohydrates just prior to working out, or will this have the same effect on insulin resistance and GH as a person who is not on a ketogenic diet and intermittently fasting and who "carb loads" before exercise? Alternatively, is it simply better to workout at the tail end of your fast rather than breaking your fast prior to exercise?