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Fasting boosts stem cells’ regenerative capacity (2018)

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Re: Fasting boosts stem cells’ regenerative capacity (2018)

#21

Post by sdze »

_0w8t wrote: post #16
sdze wrote: post #12

Earlier quoted context omitted.

And good for getting rid of lean body mass...

Fasting is not malnutrition. A typical human even lean one has enough fat to survive without food for 30-40 days without significant loss of lean mass. This sets us quite apart of other animals including apes. One starts to loose lean mass during prolonged calorie deficit which takes months.

But in clinical trials they found that even intermittent fasting leads to LBM loss.

> https://www.hawaii.edu/news/2020/10/09/intermittent-fasting-...

Considering Body Builders don’t fast, I tend to believe the study.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#22

Post by asar »

It's such a shame that there isn't more research in this area. There are so many seemingly wondrous effects on human health that would need thourugh testing.

Apart from physiological benefits though, the mental aspect of fasting from my own experience can be quite exciting as well. A 7 day fast was the longest I did so far, but 72h really hit the sweet spot for me. It was like a journey through my mind, I got challenged in very new ways to break the fast and also questioned my purpose in life a lot, as I seemingly live to eat. It was quite shocking to realize how much time I spend during a normal day to: buy food, prepare it, consume, dispose, cleanup etc. The rewards of fasting to me were long phases of absolute clarity and great concentration.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#23

Post by FrankyHollywood »

DoreenMichele wrote: post #4

This is about intestinal stem cells in specific. And, of course, in mice. (Still noteworthy if you are trying to understand why fasting seems to help with many different ailments.)

Yes fasting has beneficial health effects. A body can can't handle a constant high food intake.

I read a lot of research last years about the subject, try search for 'fat inflammation'.

Fasting and a more plant based diet seem to reduce chronic inflammation.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#24

Post by no1lives4ever »

sdze wrote: post #12
fithisux wrote: post #3

Fasting is also good to pocket and limits exposure to unhealthy food.

And good for getting rid of lean body mass...

I did a 7 day fast, and I mostly ended up losing fat. While I did not do any scientific measurement, i was able to exercise the same post the 7 day fast and my belly fat came down big time.

Maybe body builders lose lean body mass when they fast, but it does not seem to hold true for the average human.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#25

Post by virtual_void »

sdze wrote: post #21
_0w8t wrote: post #16

Earlier quoted context omitted.

Fasting is not malnutrition. A typical human even lean one has enough fat to survive without food for 30-40 days without significant loss of lean mass. This sets us quite apart of other animals including apes. One starts to loose lean mass during prolonged calorie deficit which takes months.

But in clinical trials they found that even intermittent fasting leads to LBM loss. > https://www.hawaii.edu/news/2020/10/09/intermittent-fasting-... Considering Body Builders don’t fast, I tend to believe the study.

Body builders don’t fast therefore fasting reduces lean body mass?

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#26

Post by vidarh »

sdze wrote: post #21
_0w8t wrote: post #16

Earlier quoted context omitted.

Fasting is not malnutrition. A typical human even lean one has enough fat to survive without food for 30-40 days without significant loss of lean mass. This sets us quite apart of other animals including apes. One starts to loose lean mass during prolonged calorie deficit which takes months.

But in clinical trials they found that even intermittent fasting leads to LBM loss. > https://www.hawaii.edu/news/2020/10/09/intermittent-fasting-... Considering Body Builders don’t fast, I tend to believe the study.

Having done IF while lifting, the issue that stands out to me with this study is that it tested only IF with no advice on exercise or nutrition.

Yes, if you fast without exercise, you will almost certainly lose muscle.

And if you fast without nutritional changes, you likely won't lose much, because IF on its own does not equal a deficit over more than hours at a time.

I gained muscle on IF with ease, and I also lost far more than in their study, with ease.

I'm surprised, given the constraints of the study, that there was an average loss at all.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#27

Post by _0w8t »

sdze wrote: post #21
_0w8t wrote: post #16

Earlier quoted context omitted.

Fasting is not malnutrition. A typical human even lean one has enough fat to survive without food for 30-40 days without significant loss of lean mass. This sets us quite apart of other animals including apes. One starts to loose lean mass during prolonged calorie deficit which takes months.

But in clinical trials they found that even intermittent fasting leads to LBM loss. > https://www.hawaii.edu/news/2020/10/09/intermittent-fasting-... Considering Body Builders don’t fast, I tend to believe the study.

The study run for 3 months and people were under calorie deficit, which is typical time scale when the lean mass starts to shrink.

In general intermittent fast is not a good way to loose fat precisely for this point. In Russia there are fasting resorts where people do not eat for 2-3 weeks under medical supervision. Most people do it not to loose weight but try to improve various medical conditions. Those who go there for weight loss typically gain the weight back since they do not change their eating habits.

As for bodybuilders they do intermittent fasting but not to loose fat but to gain muscles. For some people this works as long as they eat sufficient calories.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#28

Post by sdze »

no1lives4ever wrote: post #24
sdze wrote: post #12

Earlier quoted context omitted.

And good for getting rid of lean body mass...

I did a 7 day fast, and I mostly ended up losing fat. While I did not do any scientific measurement, i was able to exercise the same post the 7 day fast and my belly fat came down big time. Maybe body builders lose lean body mass when they fast, but it does not seem to hold true for the average human.

You have mostly lost water to be precise. As well as muscle.

You need an expensive Dual-energy X-ray absorptiometry scan in order to precisely tell the body mass composition.

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#29

Post by habibur »

TimSchumann wrote: post #19
DoreenMichele wrote: post #4

This is about intestinal stem cells in specific. And, of course, in mice. (Still noteworthy if you are trying to understand why fasting seems to help with many different ailments.)

There's something to the whole regenerative thing and fasting. Best I remember feeling in my adult life was after a 60 day fast. Not what I'd do today, or at least not the same way, but I highly recommend every healthy human fast for at least 7 days once every couple years. The plural of anecdote is not evidence, YMMV, consult your doctor, I don't even play one on the internet, etc. That being said, I'm currently on…

So what do you take in those days? Like 60 days fasting. Only water? Vitamins? Salt?

Re: Fasting boosts stem cells’ regenerative capacity (2018)

#30

Post by automatic6131 »

no1lives4ever wrote: post #24
sdze wrote: post #12

Earlier quoted context omitted.

And good for getting rid of lean body mass...

I did a 7 day fast, and I mostly ended up losing fat. While I did not do any scientific measurement, i was able to exercise the same post the 7 day fast and my belly fat came down big time. Maybe body builders lose lean body mass when they fast, but it does not seem to hold true for the average human.

>Maybe body builders lose lean body mass when they fast Well, highly fit people certainly lose lean body mass when they fast, which you're probably not (even if you're fairly fit)

And bodybuilders DON'T lose fat when they fast because they take supraphysiological doses of hormones (steroids) that prevent the body losing muscle - and usually eat protein throughout their fast too. So not a good example.

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