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Intermittent fasting: The good things it did to my body

bbc.co.uk

11–20 of 151 posts

Re: Intermittent fasting: The good things it did to my body

#11
There was a very interesting documentary on intermittent fasting on BBC Horizon titled 'Eat, Fast, Live Longer' where Michael Mosley experimented with himself fasting trying different types of fasting including intermittent fasting.

It did help him alot but the cool thing was there was a guy who lived on a meal a day which had athlete like body fat levels.

There's also a runner, Fauja Singh, who ran a marathon at 101 years of age featured in it who practices something close to intermittent fasting [1]

It was extremely interesting and I do feel after watching it that 3 meals a day is something conjured by man but may not really be all that natural.

Link to episode intro: http://www.youtube.com/watch?v=gGHDBIaibok

[1] http://en.wikipedia.org/wiki/Fauja_Singh

Re: Intermittent fasting: The good things it did to my body

#12
post #7
post #4

Earlier quoted context omitted.

8h without food wouldn't be intermittent fasting unless everyone does it when sleeping. There is one diet type quite popular right now in fitness called Leangains which calls for about 16h of fasting and a 8h eating window (granted that you can reduce the eating window if you feel like it). Some people even reduce the eating window to just one meal (warrior diet).

Isn't this just skipping breakfast?

If you usually have long enough between meals that skipping breakfast gives you a 16h period without any food, then sure.

When people do leangains they also do tend to focus on getting more protein etc. though, which can turn the 8h eating window into a big ordeal - I struggle to get the calories I need in two meals on Leangains due to the amount of protein I take; I keep wanting to skip the second meal because I'm still so full.

Re: Intermittent fasting: The good things it did to my body

#14
post #13

This sounds awfully like regular crash dieting.

"Crash dieting", as commonly practiced, is to eat less until your weight goals have been reached, and then go back to "normal". IF is hardly that; instead, it's a controlled pattern of regularly, and for specific durations, reducing your caloric intake. Some IF practitioners use a 6:1 cycle, where they have one fast day a week, some 5:2, and yet others 25:5, as in TFA. Some just take a random fast day whenever they feel like it, even.

IF is much less about weight than it is the other, generally scientifically demonstrated benefits of reduced caloric intake — though it does tend to confer some benefit in weight reduction as well.

Re: Intermittent fasting: The good things it did to my body

#15

I don't think we're even close to really understanding how the body works here. I'm not obese, but I gain weight from eating a little more, very easily. Last summer, I followed a Keto ("ultra low carb, high fat, medium protein") diet for about 4 months. After the first week of feeling terrible, a well-known side effect, I felt perfectly fine. It felt like I was binge eating, I limited what I could eat and just went m…

fulmato, you were hellbanned after your first comment saying "this is bs". Not a great comment, but hellbanning for a single comment is quite extreme. Posting your useful comment here:

On top of /r/keto Dr. Peter Attia has a great blog on this topic http://eatingacademy.com/ It's a great resource for a more scientific explanation of what happens to the metabolism when keto-adapted and on the effects of carbohydrates and more importantly insulin.

Re: Intermittent fasting: The good things it did to my body

#16
post #7
post #4

Earlier quoted context omitted.

8h without food wouldn't be intermittent fasting unless everyone does it when sleeping. There is one diet type quite popular right now in fitness called Leangains which calls for about 16h of fasting and a 8h eating window (granted that you can reduce the eating window if you feel like it). Some people even reduce the eating window to just one meal (warrior diet).

Isn't this just skipping breakfast?

In some ways it is skipping breakfast.

As vidarh mentionned, you also have to take into accounts macros (carbs/fat/proteins split) and having to eat 3500kcal in 2 meals can be tough sometimes (in the weekend i often do a 6h or so).

I've eaten that way pretty much all my life so it was easy for me to adapt (it mainly consisted of more proteins and alternating more carbs on workout days/more fat on rest days).

I made a quick calculator the other day if you want to see how it would look like http://vincent.is/working-on/leangains (github https://github.com/Keats/kCalculator if any angularjs dev want to review some code of an angular newbie!)

Re: Intermittent fasting: The good things it did to my body

#17
post #9
post #5

Looks like a derivation on the 5/2 diet. The 25/5 diet. My personal issue with these types of diets is that my concentration levels initially drop. I find the first couple of days extremely uncomfortable. The best lifestyle change I've made is to drastically cut down on carbs, generally avoiding wheat and try never to eat sugar, in particular fructose. Note this doesn't stop me eating carbs but that I generally try a…

What did wheat do to you? Are you a celiac, or are there other reasons one might be interested in avoiding it?

Not op - My experience is that all grains (corn, rice, wheat) make me bloated and puffy, regardless of caloric content. Wheat is by far the worst offender, also making my breath shorter about 30-60 minutes after eating, lasting a couple of hours, and corn not having an immediately noticeable effect, but causing bloating that will stay for days.

Not celiac, and not anything life threatening, but definitely a huge effect. After dropping wheat, I lost 30 lbs in one month, and it stayed off for 18 month without wheat (but some came on again after a week of eating mostly corn products - which is how I discovered that corn is evil too)

The best way to determine if this is relevant to you is not to read books or articles or consult with a doctor: rather, take a week or two off grains (much harder than it sounds - wheat and corn are used as fillers in many products), and then adding them sporadically and keeping a journal (what and when you ate each day; and whether you felt good/bad the next hour/day)

Not easy, but well worth it and not expensive.

Re: Intermittent fasting: The good things it did to my body

#18
This is not really a new thing. In India, fasting is a like a culture. More common with females though. Some of them fast like once every week. There are festivals which are based around fasting. Like Karvachauth, in which girls fast for their husbands etc (we are not very feminist yet). There are festivals during which people fast for straight 2-10 days! (chath, durga puja, somwari etc).

Even in Islam, during ramzaan people fast everyday for 30 days . They eat before dawn break and eat again after dusk.

Re: Intermittent fasting: The good things it did to my body

#20
post #9
post #5

Looks like a derivation on the 5/2 diet. The 25/5 diet. My personal issue with these types of diets is that my concentration levels initially drop. I find the first couple of days extremely uncomfortable. The best lifestyle change I've made is to drastically cut down on carbs, generally avoiding wheat and try never to eat sugar, in particular fructose. Note this doesn't stop me eating carbs but that I generally try a…

What did wheat do to you? Are you a celiac, or are there other reasons one might be interested in avoiding it?

I think it was a combination of issues:

1) If I eat a carb rich meal, I will happily go for a nap. Anecdotal evidence, had spaghetti carbonara with garlic bread at the weekend. Fell asleep watching a film for the first time in about a year. I can create the same effect with potato or rice. I don't like it. It wastes my time.

2) After eating a lot of bread I can feel extremely bloated and uncomfortable. I potentially have a gluten intolerance however I find the same when eating a lot of sugar. It could be yeast related. Through experimentation I've found that the white 'gacky' sliced bread is particularly bad.

3) I don't think we are designed to eat modern wheat. I switched from beer (ale) to cider and find I have no morning after 'bowel' effects.

4) I avoid sourdough bread. Who am I kidding. Best bread in the world. My crack cocaine. Thankfully there are some awesome artisan bakers in Bath, UK. However when I buy a loaf, I commit to a 20+ mile cycle ride.

5) If I eat a carb rich meal, I will get hungry quicker. I can feel 'fuller' for longer by avoiding carbs. It makes me avoid snacks.

A lot of the above is about feeling mentally alert at work/home. In the winter it means I cook up big pots of high protein stew, freeze them and take them to work and zap them in the microwave. Summer is all about big boxes of salads, heavy on the meat/cheese/dressing.

At work we have lunchtime Dirty Burger Wednesdays where we grab nasty takeaway food :) Like I said it's not about being religious about not eating wheat, just generally trying to minimise intake. I know what a high carb diet makes me feel like.

One proviso. I cycle to work. The morning is almost a free wheel 2.5 mile down hill ride. The evening is a 2.5 mile climb. It used to be a real bitch. Now only the last 0.5 mile is a bit nasty.

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