Keith Harmon – "Fasting builds, not burns muscle"

No matter how often I write about this, I always get questions/ accusations that I’m lying that fasting actually causes muscle loss, usually from people who never fast. But the evidence is just not there. Terry Crews, former NFL star recently discussed how intermittent fasting keeps him in shape.

When Hugh Jackman needed to bulk up for the role of Wolverine, he turned to intermittent fasting. A reader, record powerlifter Keith Harmon had figured this out himself many years ago. He turned 70 years old, but this guy looks and lifts like he’s 30 years younger. He looks amazing, His secret weapon? Fasting. He wrote to me recently and he said:

Congratulations on exposing my well kept secret inadvertently. Intermittent Fasting was the key to me becoming the Worlds Strongest Man at age at 70 and now the secret is out.

Here, after almost 48 years of Gym life, I stumbled onto your teaching on Intermittent Fasting by pure accident a month ago. When I read about what you were teaching I was in total astonishment. You confirmed medically what I have been practicing since I turned 40 years old.

Yes, as a Christian I have fasted all my life, but when I turned 40 I discovered a hidden secret to fasting that changed my life forever and put me on the road to becoming the World’s Strongest man. That was the secret of the relationship between fasting and weight lifting that reversed and stopped the aging process that now gave me a youthful look. No one can deny my records, and no one can deny the secret to my youthful looks. Not a wrinkle on my body. It has to do with fasting, not because of creams, pills or surgery.

Let me set the record straight. I never set out to become the Worlds Strongest man. I believed in my motto: A Proud person talks about all he has DONE, A Foolish person talks about all he will DO, and a WISE MAN does it, and says NOTHING. This is the first time I ever shared my secret because no one would have believed me until I read your material and you confirmed what I have been doing.
I came from the Arnold Schwarzenegger Era of the 70’s called the Golden Era of bodybuilding and power lifting. I have been with and trained with many famous athletes and came out of one of the most famous gyms in the history of the sport called Quads Gym in Chicago. In the mid 70’s I came to the cross-roads – steroids and the life of fame as my friends were doing, or to go NATURAL. I chose natural because my reasons for training were HEALTH reasons. This was a marathon race, not a sprint, and I will catch the juicers at the other end of the race.

At forty I had a major crisis in my life after losing a Furniture Empire. My high flying, limousine riding lifestyle in Florida came to end in 1985, so I decided to go into a serious life of fasting to clean me out mentally, socially, spiritually and physically. Then the “revelation of all revelations” hit me. I was fasting 3 days and one day off for several years while training hard and getting stronger. People that I hadn’t seen in a few years started telling me that I was looking younger than ever.

I developed my own system of training that was exploding all the myths I had heard. I was actually getting younger and stronger as I got older. At age 40 than 50 than 60 when I started setting the world records knowing by then the “roid” guys would not be competing in power lifting. Many had already died before they got to the finish line. My feats of strength would rival at the age of 68 anybody in the NFL, benching 375 lbs Raw, at a body weight of 194. Doing the NFL combine test, I did 225 lbs. for 25 reps. In South Carolina, I did 365 lbs for 3 reps at Breakthrough Fitness.

I looked like a NFL player, not a retired 68 year old man talking about the good old days of the Golden Era. Why? Because of Intermittent fasting as Dr. Fung told you.
Not only does fasting not “burn muscle,” to the contrary it “builds muscle,” Why? Because it resets the body and shocks it out of stalemate or negative cycles. It’s like when you overload the system with appliances and have to hit the reset button to activate the power again. It is a safety device or mechanism for your own protection. Bodybuilders and power lifters overload the system all the time with carbs and high protein and this is a good way to reset the button and take it out of overload mode. In fact, it rejuvenates the entire circuit board. Your system can act just needs to be flushed out to remove unwanted junk..
So, contrary to what so-called experts will tell you, fasting does not burn muscle. When you fast you are not burning muscle because you don’t “store muscle”. You “store fat” and that is what burns while fasting, not muscle. Fasting flushes out toxins and impurities that “prevent” muscle growth, it does not “deter” muscle growth as some so-called guru will tell you. Fasting resets the INSULIN button that controls hormonal levels. It was my secret system of “HOW to train and fast” that stopped the clock of getting weaker and looking older. You want proof of my staying power at 70, ask my 29 year old wife. She just started training so she could keep “UP” with me. I fast every Sunday, so get out of my way on Monday. I’m RESET and my button is on GO!!!

Sooooo GO TO DR. JASON FUNG ON INTERMITTENT FASTING. He is the gemologist of the weight loss field that is exposing all the fake stones in circulation. This is not one of those fake adds that peddle fake stones that are Cubic Zirconium’s. He is the REAL DEAL, a true DIAMOND in a FAKE AND PLASTIC WORLD of impostors.
Thank you again for being the Dr. of Truth and exploding so many myths that the weight loss Doctors tremble over. You will save the life of many people and provide HOPE to desperate people looking for truthful answers in a crisis situation. Wisdom is the right application of knowledge and you hit the bulls-eye and split the arrow.
Keith J. Harmon

Dr. Jason Fung: Amazing work, Keith! Keith has been fasting intermittently for 30 years and setting world records for weight lifting along the way. While many doctors and PhDs who never fast hysterically warn about burning muscle, Keith figured out long ago that our body would not be so stupid as to store body fat, and then burn muscle when the time came. This behaviour is classic ‘Lecturing birds how to fly’. So, choose carefully who you listen to, because Keith puts his money where his mouth is.

2017-09-02T11:54:07+00:0071 Comments

About the Author:

Dr. Fung is a Toronto based kidney specialist, having graduated from the University of Toronto and finishing his medical specialty at the University of California, Los Angeles in 2001. He is the author of the bestsellers ‘The Obesity Code’ and ‘The Complete Guide to Fasting’. He has pioneered the use of therapeutic fasting for weight loss and type 2 diabetes reversal in his IDM clinic.

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Vishal
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Vishal

Very inspiring. Two Thumbs up 🙂

Nick
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Nick

That’s pretty amazing! The next time my 50 year old doctor warns me about the many perils of fasting, I’m going to check and make sure he can bench 2x his bodyweight. If not, I think I’ll stick to what I’m doing! 🙂

Stefan Constantinescu
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Stefan Constantinescu

So three days of fasting followed by one day of eating?

That’s a pretty intense protocol. I have issues with diarrhea after two days of fasting.

I’m assuming this individual has a strong digestive system.

Could you elaborate further on the protocols Mr. Harmon used during his career?

I’m not doubting the three on, one off protocol, but I dabble in powerlifting myself (I’m not breaking any records anytime soon) and I’ve found that I can just barely maintain my strength on ADF (one day on, one off).

Thank you.

BobM
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BobM

I would find three days of fasting and one day of eating to be very difficult. I did three days of fasting last week, but ate for four days after that. (Usually don’t eat breakfast, so ate between a window.) This week, I’m fasting M, W, but on Friday, I’ll only fast until dinner.

I am only working out one day per week (search for “Body by Science”), though.

sten bjorsell
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sten bjorsell

What are you drinking when fasting? If just water, take a few charcoal tablets. They usually consume bugs and help with that stuff. Activated charcoal.

Daniel Walker
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Daniel Walker

Usually consume bugs and help with that stuff? Can you elaborate?

Srinath
Guest
Srinath

I have constipation when fasting and salt/acv and Ca-mg-zn, K and B complex is needed to move it.

steve bromley
Guest
steve bromley

i too HAD diarrhea after my 4 day fasts each week, UNTIL i discovered that fish – primarily salmon (baked, grilled) ended my problem. i now have some high-fat cheese and/or half an avocado as well. salmon is usually dinner, and if i have lunch on non-fast days, eggs and bacon, or mackerel (with siracha mayo!) are treats that cause me no problems.
maybe this will work for you, stefan…i hope so!

Forest Simmons
Guest
Forest Simmons

Perhaps he meant three days with a small eating window, followed by one day of normal eating.

BoulderFaster
Guest

This Khan Academy video “generally” supports your point: https://www.youtube.com/watch?v=I4lU4zQJQRk (around 9:50).

Ray
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Ray

I am a fan of intermittent fasting but as an Exercise Physiologist find it hard to believe it builds muscle. Do you have any research to back this up?

SomePerson
Guest
SomePerson

I don’t have links on me, but you should dig into the literature. There’s been a number of actual studies done on alternate day fasting for both weight loss, diabetes and weight lifters already. Some of the mechanisms for why it spares/helps build muscle are well described on this very blog. As far as I know, no one has ever tested muscle change directly in more extended fasts than 24-36 hours sadly, but the mechanisms to support such an occurrence are present. The real question is when the body runs out of spare protein that it can deploy for muscle… Read more »

BobM
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BobM

What I’ve been wanting to do is get my body fat/muscle tested using Dual Energy X-ray Absorptiometry (DEXA) or even a bodpod (a device that uses air to provide a measure of how much fat/muscle you have). Then I’d retest 6 months-year later. However, I can’t find any place near me that offers these. (I can find DEXA for bone mass, but you need special software for muscle/fat, and no one has that.)

SomePerson
Guest
SomePerson

The thing to look out for with a bodpod and maybe even a dexa if the tech doesn’t know what to look for is that fasting does actually decrease lean body mass. The controversial claim made by people like fung and others is that the lean body mass is decreasing from non-essential non-muscle protein substrate in the body first and only really from muscles after the junk proteins and random bits laying around can’t be eaten up anymore. So, if you use a body composition analysis you really will see a lean body mass loss accompanying a much more substantial… Read more »

alan
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alan

I think a large role may be the inhibition of myostatin – a hormone that breaks down muscle tissue. If you do a Google image search for “myostatin inhibitor cow or dog”, you will see some absolutely muscular animals who have low levels of myostatin. I don’t have the link handy, but fasting seems to inhibit the release of myostatin.

Jennifer Henske
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Jennifer Henske

Fasting also increases growth hormone levels. Autophagy helps clean up unwanted cells and then GH helps rebuild. With insulin levels low and digestion halted, your body can clean up, clear out toxins and renew itself.

Amanda
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Amanda

I think the idea behind the fasting behind it Ray is that the body is simply built for balance and longevity. It doesn’t make sense in any stretch that if one stops eating that muscle would waste away first before fat considering we need muscle to go out and “gather or hunt” for food. We aren’t built to waste away and die, we’re built for survival. I saw a youtube video of someone breaking this down in a very complex matter about how all the different metabolic pathways work to provide us energy. They had said during the fast after… Read more »

Joe Lenner
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Joe Lenner

I am very curious about this as well. Is there a difference muscle-wise between fasting for 16 hours, then weight training and immediately breaking the fast afterwards vs. fasting for 16 hours, weight training, and waiting another 8 hours to eat? Is there a time period where your muscles are more anabolic?

Chris Hastings
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Chris Hastings

Read up on the blog, it search Google for intermittent fasting and HGH. Eating suppresses HGH levels during the daytime, whereas fasting allows them to stay high. Fasting and sitting on the couch will not make you ripped, but if you train while fasting you WILL see better gains.

Martin Williams
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Martin Williams

I am not writing this cynically, I promise. But I do sometimes find reason to doubt and question. There’s surely nothing wrong with that, is there? So here goes: Keith’s gut is about the same size as mine. I.e., massive. He’s nearly as wide as he is tall. If he’s fasting regularly, why is that the case? Seriously.

SomePerson
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SomePerson

You’d have to know whether that’s muscle or fat in his gut. It could be some massively freakish barrel chested muscle development, if it’s actually fat then yeah h’s probably not fasting like he says he is.

He could just be an even more extreme version of this though.
http://irishstrongman.com/wp-content/uploads/2015/02/Scott-Mendelson-USA-Profile-Powerlifting-Bench-Press-Speclised-360×240.jpg

wikipedia says it’s often associated with extremely elevated levels of human growth hormone and, well, fasting in the way he claims to fast would absolutely result in a freakishly high average circulating level of hgh for him.

cj
Guest
cj

he is just obese . fasting can’t stop you becoming obese if you over eat. just look at the fat on his face and arms.

txb
Guest
txb

Was thinking this as well. No doubt he is strong, but the first thing that struck me was his barrel abdomen. Quick google search says lots of powerlifters have this because of HGH, IGF-1 & insulin (along with carb-loading & high carb diets). But as you say, this person’s face is fat, too.

Gary
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Gary

“Massively freakish barrel chested muscle development…”

“The first thing that struck me was his barrel abdomen…”

Maybe Harmon should read Banting’s Letter on Corpulence.

Stephen T
Guest
Stephen T

Martin, I was more concerned about Keith’s choice of shoes.

His strength and physique are undoubtedly impressive.

Elaine in Big D
Guest
Elaine in Big D

Cowboy boots.

Gary
Guest
Gary

He’s fasting in his dreams.

S.
Guest
S.

I was thinking the same. NOT trying to be rude, but since this article is about his body, it’s only fair that we’re really thinking about it. He looks muscular AND fat at the same time. I think we maybe we can kindly excuse the belly and blame it on power lifting (seems to be a trait of power lifters) but that doesn’t explain the chubby face. He obviously eats enough to usually be in a caloric surplus so I don’t know why the strength and muscles on a man who lifts like he does would be surprising to anyone–… Read more »

Amanda
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Amanda

Good point, but it also tends to be that powerlifters and strongmen always seem to have large guts. Not all, but many of them do.

I read somewhere that the body “re-compositions” itself to handle whatever it’s being thrusted upon it. Powerlifters and strongmen need strong cores, therefore they develop thick trunks. Soccer players and sprinters usually have big defined quads. When you think about it, it makes sense.

Forest Simmons
Guest
Forest Simmons

Keith says that now he fasts just once a week, much less than he did in his hey day. Once a week fasting on high carbs will do nothing for fat loss.

alan
Guest
alan

I think the secret to fasting and weight lifting is that fasting inhibits the hormone myostatin. Do a Google image search of “myostatin inhibitor cow” to see some crazy images of very muscular cows. Myostatin causes muscle tissue to break down as part of a normal build/destroy/rebuild. Muscle break-down may explain part of our daily protein turn-over. Inhibiting myostatin spares muscle tissue. It may be muscle’s default nature to grow continuously, and it’s myostatin’s role to keep muscle growth in-check.

Fred Hahn
Guest

This was not my experience at all. I did IF for 2 weeks, minimum 16 hours each day, and made sure to get my protein in during feeding hours. I drank 2-3 litres of water each day. I tested my body comp using an InBody 570 device. I LOST lean tissue and gained fat tissue and my body weight remained the same.

I don’t think it works for everyone.

sten bjorsell
Guest
sten bjorsell

Hello Fred! Most of the good that fasting does is to scavenge old existing proteins and remake them to fuel or as parts in new proteins. In the course of that our bodies are rebuilt. With only 16 hours fasting combined with lots of proteins between means, to me, that you never reach the point where fat burning and autophagy can start. Suggest minimum 24 hours fasting, better 48 hours. (From dinner day 0 to dinner day 2, for instance). Then you may just see huge differences. LCHF may be required to avoid the hunger before fat burning starts late… Read more »

Gary
Guest
Gary

Hi Sten, I eat one meal every 48 hours. And it’s not a feast. Just a normal meal. Real food. I like raw eggs too. There is a lot of research on fasting and how long it takes for the benefits of autophagy and low insulin, low mTOR to kick in — I think it is probably at least 20 hours. To what extent managed autophagy can be used as a clinical tool, I do not know.  But, restricting food intake, and particularly restricting the frequency of food intake is one of the most important aspects of maintaining health.  People… Read more »

Mike the Viking
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Mike the Viking

I think I’ll try your approach, 1 meal every 48 hours. I’m 44, and I did a 15 day water fast recently, and reached BMI of 20 or so. I don’t think I got to autophagy, though, since I still have quite large, thankfully flat moles in my back, and a small droopy one just below my waistline. Shouldn’t these have gotten smaller if not disappeared completely? I tend to overeat especially now that I’ve found LCHF, and I just love putting butter and coconut oil on everything =) I’ve started to ferment foods to boost my gut biome, I… Read more »

Gary
Guest
Gary

“I tend to overeat especially now that I’ve found LCHF, and I just love putting butter and coconut oil on everything =)” Fragmented Fats There is nothing essential about fragmented fats. The concentrated fats are largely empty calories, and do little more than add adipose tissue to your waistline. When I recommend butter and/or coconut oil and/or olive oil, it is not because they are “good for you.” People are going to eat fragmented foods such as concentrated fats, these 3 options are the least damaging. All the good fat you need comes from the eggs, beef, poultry, fish and… Read more »

Carlos
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Carlos

Don’t put too much faith in the results of an impedance meter, specially if on LCHF/fasting. What the impedance meter does is extrapolate fat body percentage based on water percentage, and give an estimate on said water percentage based on how difficult it is for electric current to go through your body from point A to point B. First problem: fat is not equally distributed everywhere. So you may have really muscular legs and a massive gut, and the reader will underestimate Second problem: readings differ greatly depending on small details, such as contact zone hidration, room temperature, cleanness of… Read more »

Bob
Guest
Bob

Please don’t start protesting too much, Dr Fung. Many will have stopped reading at “toxins”. It puts one in mind of a dodgy infomercial. And I’m on your side.

More importantly, you’ve recently been accused of misrepresenting a study in this area. I don’t recall you and Mr Moore talking much about that in your recent podcast

I really am on your side.

Vadym Graifer
Guest

Well, I am far from setting world records, but a few numbers illustrating my progress go along the same lines. Objectively: after 8 months of IF and dropping 50 lbs (I exclude 25 more lost before that on LCHF, so we are talking about IF exclusively), at 55 y.o. I: – do 45 push-ups a minute in muscle fitness test; – 120-150 push-ups over 20-30 minute training session – that includes standard, Chinese and dive-bomber variations – in 4-5 rounds; – in-between pushups, I do free-standing curls with 25-lbs dumbells; – first time since my 30s, I can do pull-ups… Read more »

Patrick
Guest
Patrick

Awesome! Which type of IF have you done?

Vadym Graifer
Guest

Patrick, I pretty much mix and match most of the variations. I started with 5:2, by stumbling onto it when researching how to deal with my T2D, before discovering Dr. Fung. Reading The Obesity Code, the idea of changing one’s routines to “keep your body on its toes” resonated with me very much. So I added 36 hours water fast, 16:8, OMAD (mostly in maintenance mode), fat fast – and I did (and do) it all intermittently, without any fixed pattern, so my body has no chance to adjust and settle into a routine. As a result, I went through… Read more »

Viktoriya
Guest
Viktoriya

Vadym, when you eat, do you follow a specific diet, like LCHF for example?

Vadym Graifer
Guest

Viktoriya, yes, it’s mostly LCHF – I say “mostly” because it’s less strict now that I am in maintenance mode. It’s real foods only, no processed junk whatsoever. No wheat; dairy is fermented – kefir, yogurt, cultured cream, cheese, and butter; carbs are mostly fibrous, plus some quirky things like fermented buckwheat and teff (I like experimenting). Black coffee with a square of dark chocolate starts the day, then red meat, eggs, and bacon lead the parade 🙂

Barbara
Guest
Barbara

You quit your hypertension drug??? Do you feel IF has helped with your Hypertension?

Naom Amir
Guest
Naom Amir

It would be great if Keith could also share his protocol in more detail, and if it has changed throughout the decades. For instance, he mentions that Sunday is fast day, does that mean a 36-hour period with no eating at all til Monday?

Or does he do 16 hours everyday? Does he skip breakfast?

Fasting lover
Guest
Fasting lover

Anyone, please help. I’ve been intermittent fasting (16-24hours) for the past one year or so. It’s been great, lost about 25lbs but need to loose another 20 atleast. When I look in the mirror, I look younger. Alot of my minor health issues have disappeared. However, lately, I’ve been experiencing intense hunger pangs and cravings for high carb foods. I’m always hungry now and I’ve started to put on weight again. I tried fasting 48 hours and then 72 hours, hoping the hunger will go away, but after the three day fast, I started gorging for three days, couldn’t keep… Read more »

sten bjorsell
Guest
sten bjorsell

Try LCHF. Lots of fat between each fast keeps the body in fat burning mode, therefore making the transition from eating to fasting much smoother. Cut back on proteins too, as any excess is converted to glucose and with less the autophagy starts quicker, meaning you will look even younger again! Ron Rosedale says maximise proteins to 0.7 g/kg lean body weight per day is safe and will also protect from cancer.

Charlene
Guest
Charlene

I am guessing that you eat healthy– look for hidden sugars and refined carbs in your food, they drive hunger.

Roger Bird
Guest
Roger Bird

i am a 71 year old male. I have been intermittent fasting (IF) and ketogenic dieting (KD) for about 11 months. I could not for the life of me figure out whether my muscles were actually getting bigger or if I was just imagining that they were getting bigger. People say that IF does not burn muscle, and that makes perfect sense, except perhaps to a conventional MD. But I never imagined that my muscles would get BIGGER. I do a fair amount of exercise, but certainly nothing to brag about. Recently I had reason to take my shirt off… Read more »

Ishani
Guest
Ishani

Dear Dr. Fung, I really admire the way you stand up to people. I am a huge fan of yours, and have started fasting after going through your videos and blogs. Since it helped me so much, I though of sharing the knowledge with others since I am a writer/editor and I have the platform to do so. But, I have received so much flak for this. I got hate comments on FB, and it was so disheartening to see the way people reacted. I am sad about all the negative comments, no doubt, but specially because these people are… Read more »

Mike the Viking
Guest
Mike the Viking

Hate comments on FB? Well, people are naturally afraid of something they don’t understand, and people in general sure don’t understand fasting or even LCHF, period. So the hateful and mocking comments are to be expected. Many are also hateful because they think they know they couldn’t do any kind of fasting because of (insert fasting-induced ailment) and want to discourage others of trying it too. These people are mostly women. E.g. I was told AFTER my fast that I’d surely lost a lot of muscle tissue, while I was living proof I hadn’t. Maybe you’ll shut your mockers up… Read more »

Roger Bird
Guest
Roger Bird

Mike the Vike, Welcome to my world, or welcome to the world of people who are serious about health. Anything that suggests to people that culinary pleasure isn’t an uncompromising good will be looked upon with by most people as a threat.

And, yeah, hats off to Jason Fung. He could even be risking his career.

SomePerson
Guest
SomePerson

The funny thing is, you can fast and eat low-carb and be an absolute culinary hedonist. It’s what I do, I eat relatively low-carb, don’t eat grains except sometimes maybe rice and use honey vary sparingly with my rule being that any dessert I want to eat has to be made by myself so I can control the sweetness and dial it down. I’ve found that this way of eating and fasting helps me enjoy the food I eat more not less and I wish people who liked food knew what they were missing out on. I had sushi for… Read more »

Roger Bird
Guest
Roger Bird

SP, my bee pollen tastes good, sorta. The sardines taste good. I can put stevia in most smoothies and they taste good. My salads are OK.
But the lady in question balked at the word “fasting”.
People make their choices.

SomePerson
Guest
SomePerson

Ishani, if you’d like a place on facebook where you can talk with people abut fasting who are helpful and positive about it and you’re not already in the group you should see if an admin will let you in to this group https://www.facebook.com/groups/459769974182105/. It’s a closed group, but the admins are very good and the people in it are a great resource both for discussions, support and if you feel like supporting people learning about fasting themselves. I too have been struggling with getting the word out about fasting, but the way it’s changed my own life has been… Read more »

Roger Bird
Guest
Roger Bird

Yes, it is amazing what foolish choices people make. I remember meeting an old friend in Costco, and she asked me how I was. And I told her, and then I told her why. She just said that she couldn’t do that. My very best friend of 48 years would rather pout and not return my emails than actually make some kind of dent in his Dr Oz certified “healthy” diet.

Vadym Graifer
Guest

I am a member of that group, and can very much second the recommendation. One of the friendliest gatherings on FB, open to many approaches yet without compromising the principles.

Joie
Guest

I have done intermittent fasting as a reset for years. When I feel the need to reset my body I begin my fast at 6:00pm, after having finished a normal, for me, dinner, which would be ketogenic in nature. I then only drink water, 1 cup of coffee and herbal tea all the following day till 6:00pm the next day. A large portion of my fasting takes place while I’m sleeping. I do this a couple times a week, with 2 regular eating days between, for a month or two. It always increases my energy and clears my head.

hap
Guest
hap

One does wonder what effect the pulsed GH has on the elderly and others with impaired DNA and other repair mechanisms……and developing carcinoma.

Mike
Guest
Mike

I just stumbled across this article and the comments while googling around (in the middle of who-knows-how-long-of-a-fast…I’m just over 3 days). Very enlightening, respectful, and encouraging comments for the most part. Good timing on my part. I just finished Dr. Fung’s book on fasting a little over 3 days ago. I’m inspired. Thanks to all.

sahsah
Guest
sahsah

Hello Doctor Fung,

I’ve read your book “Obesity Code” and since then I’ve been doing fasting and having incredible results.
Can you recommend a multivitamin that will cover the daily needs for a more than 48h fast ?

Thank you for sharing your knowledge,

Selim

Ken Stephens
Guest

My answer would be that it depends. I do think that mixing in intermittent fasting with loading up can be helpful with building muscle, for the same reason that cycling off things performs resets and lets the body recalibrate so to speak. Insulin is an anabolic hormone though, and if one lowers their insulin levels (as they should) and increases AMPK (as they should), this will end up being somewhat catabolic. It’s not all about building muscle though, and people worry way too much about this stuff. Getting a good amount of protein does help a lot though. When glucagon… Read more »

aleks
Guest
aleks

he is rather fat and unhealthy looking; not sure this is a good strategy to promote fasting (a faster + 1.5-years-in-ketosis follower here).

Christoph Dollis
Guest

The man’s fat, and has a lot of the particularly unhealthy abdominal fat as well.

Why did you think this post made sense?

Keith J. Harmon
Guest
Keith J. Harmon

I’m glad my 28 year old girlfriend does not share your thoughts. Also glad you just show a head shot. If the rest of your lower body look like the top, I don’t think there will be to many 28 year old girls standing in line. I wonder if when you turn 71 your wife or girl can boast he can keep it up for hours. No hair, glasses, double chin, do you do any exercising other then your fingers on a computer key. How many punks that commented can do 25 pull-ups at 68. You guys are clueless. “Twenty-two… Read more »

Rajveer
Guest
Rajveer

Flashing Wife as a trophy every now and then!!! WOW, you dont need IF, you need Shrink man.

Sun
Guest
Sun

Hi guys. This is such an interesting topic i have been looking into for the latest few months. I am 31 yo, Asian, male, 180 cm, pretty sports active for my whole life, I have been intermittent fasting(16/8) for about 1.5 years. The result is pretty good i would say. Weight: 91.3 kg. 2016-01-10 –> 78.9 kg 2017-06-05 Body fat: i have no clue when i start. right now I am at 10.4% +- 1.03% If you want to ask me how i feel. I feel like I am 18 again. 😛 I jump the same high(all four fingers over… Read more »

Sun
Guest
Sun

Hi. I am back with good news(at least for me.) My physical performance was completely normal today with my lifting. Nothing strange happened. I lifted what I planned to lift, explosively, with the regular intensity and concentration i had. I break the fast with a fully grown banana and around 1 kg cooked/raw veggies, ofc apple vinegar, then since it is Friday, ate out with my basketball teammates, burger and fries. One thing I must mention is, i felt the food extra much, it is a good place but today just felt different, and I have been having this sweet… Read more »

Sun
Guest
Sun

A bit update regarding the experiment i did lately regarding extended fasting(24+ hours). Last week, first session, 36+ hours, Monday evening till Wednesday Lunch. Everything fine, nothing worth mention. Btw, the fasting stress level raise is real. Be cautious and READ Dr. Fung’s article first if you are a stressed person. Second session, 40 hours fasting from Friday night till Sunday evening, during the fasting, On Saturday, i did 2 hours morning yoga + foam roller, played 4 hours basketball(m-intensity 2 hours, l-intensity 2 hours), drank hack a lot of water(regular and salty). On Sunday, i did a lifting session… Read more »

3031
Guest
3031

With all my respects…
This Grandpa looks funny at best! He does not look like he is 40 year old and he is not even fit at all!
I mean, you should see some physically active 70-80 year olds around Europe.
When you see them jogging on the beach in tiny shorts from behind, their smooth skin and atletic body, you would think they are 35-45 y.o. Its just their face and hair that gives them out

Keith Harmon
Guest
Keith Harmon

Please send me a video of one of them doing 25 pull up the hard way if they are so fit. Can’t wait to see. Unless they look endemic and no weight to pull up. LOL