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A Guide to Intermittent Fasting

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Re: A Guide to Intermittent Fasting

#31

Post by trevor-e »

jamesrom wrote: post #29
bmcusick wrote: post #5

"Calorie restriction is proven to help you live a longer life." This is essentially false for anyone reading the article. The studies that showed mice living longer lives from calorie restriction were restricted from birth , and thus their growth was stunted, and smaller creatures live longer (think about dogs; big ones die earlier). Studies of animals where the calories restriction was started mid-life all show incr…

Smaller creatures live longer. Citation needed. Elephants live for 60 years. Mice live for 3. Life expectancy is clearly not a function of size alone, so you probably need to back up that claim that they lived longer because they were stunted.

I'm pretty sure OP was referring to smaller creatures of the same species.

Re: A Guide to Intermittent Fasting

#32

Post by rednerrus »

gricardo99 wrote: post #17

Could any one point me to advice/guidance, or can answer from experience, what you would do differently when doing IF with regular exercise? It seems to me you'd want to make some adjustments to types and amounts of calories to account for exercise, especially anything very taxing, like endurance training. But I haven't found any advice on this specific topic.

http://www.leangains.com/2010/04/leangains-guide.html

This worked really well for me.

Re: A Guide to Intermittent Fasting

#33

Post by siliconc0w »

I find IF helpful to regulate calories. Basically I skip breakfast, eat a light lunch around 1, and a large protein/veg heavy dinner. This is effective if I stick to it (and I generally have for quite some time now). You can't do IF, eat crap, and expect results. You still need a disciplined diet. For me I found I basically need to severely restrict carbs. I will overeat carbs but not protein/less starchy veg. Try eating a BigMac's calories in spinach. It isn't going to happen.

As other people have mentioned, a lot of the claims made about IF aren't entirely backed by the research. Most experiments are with mice and usually use a more severe form of fasting that what is advocated. It's just another way to do caloric restriction which may work better than the previous 'best practice' of 'many small meals'.

Re: A Guide to Intermittent Fasting

#34

Post by jamesrom »

trevor-e wrote: post #31
jamesrom wrote: post #29

Earlier quoted context omitted.

Smaller creatures live longer. Citation needed. Elephants live for 60 years. Mice live for 3. Life expectancy is clearly not a function of size alone, so you probably need to back up that claim that they lived longer because they were stunted.

I'm pretty sure OP was referring to smaller creatures of the same species.

Again, OP is claiming that the property of 'smallness' is a causative factor to increased life expectancy. This is a way more dubious claim than calories being a causative factor.

For example, birds are the opposite: larger birds generally live longer than smaller birds.

Actually, the more I think about it, it's the same with lizards. And primates and most mammals. And pretty much every species besides a small subset of domestic canines that have undergone artificial selection in the past millennia.

Re: A Guide to Intermittent Fasting

#35

Post by pacaro »

jamesrom wrote: post #34
trevor-e wrote: post #31

Earlier quoted context omitted.

I'm pretty sure OP was referring to smaller creatures of the same species.

Again, OP is claiming that the property of 'smallness' is a causative factor to increased life expectancy. This is a way more dubious claim than calories being a causative factor. For example, birds are the opposite: larger birds generally live longer than smaller birds. Actually, the more I think about it, it's the same with lizards. And primates and most mammals. And pretty much every species besides a small subset…

Yeah, I suspect that with dogs that overbreeding is a bigger issue. We have a Bernese Mountain Dog, they don't have a good health profile, for example all the "large chested breeds" are at risk of "bloat" or gastric torsion. If this isn't caught quickly then it's fatal (blood supply to the stomach is interrupted). This is something that happens through artificial selection for size, i suspect that it is rare in wolves.

Re: A Guide to Intermittent Fasting

#36

Post by eco »

jamesrom wrote: post #34
trevor-e wrote: post #31

Earlier quoted context omitted.

I'm pretty sure OP was referring to smaller creatures of the same species.

Again, OP is claiming that the property of 'smallness' is a causative factor to increased life expectancy. This is a way more dubious claim than calories being a causative factor. For example, birds are the opposite: larger birds generally live longer than smaller birds. Actually, the more I think about it, it's the same with lizards. And primates and most mammals. And pretty much every species besides a small subset…

Many reptiles are indeterminate growers (meaning they'll keep growing as long as long as they are alive) so of course the largest ones live the longest. Birds and mammals, however, pretty much all have determinate growth as far as I know.

Re: A Guide to Intermittent Fasting

#37

Post by arohner »

gxs wrote: post #23

For the 16+8 routine, does anyone have an idea of how you're supposed to carb cycle?

Read the leangains links elsewhere in the thread. In those, Berkham recommends high protein,medium/high carb, low fat on weightlifting days, and high protein, medium fat, low carb on non-weightlifting days.

Re: A Guide to Intermittent Fasting

#38

Post by [deleted] »

bmcusick wrote: post #5

"Calorie restriction is proven to help you live a longer life." This is essentially false for anyone reading the article. The studies that showed mice living longer lives from calorie restriction were restricted from birth , and thus their growth was stunted, and smaller creatures live longer (think about dogs; big ones die earlier). Studies of animals where the calories restriction was started mid-life all show incr…

[deleted]

Re: A Guide to Intermittent Fasting

#39

Post by logicalmike »

I've cycled through many methods of eating, trying to find an optimal diet to pair with heavy weight training for 6-7 days a week.. while at the same time keeping my weight more or less the same (with only slight fluctuations).

Intermittent fasting (or more specifically, following a loose version of the Renegade Diet) is where I landed.. and have been able to keep my weight steady while still making strength gains. In my opinion, it's a good choice who have a hard time controlling their food intake without the hassle of counting calories and/or macros. This way, rules are set, and then can look forward to ~4 hours of eating without restriction. I've pushed this feeding window to the limit, and to gain significant amounts of weight week over week, I basically had to eat until I physically sick for multiple days.

I've also had blood work done, with everything being normal since I started over a year ago.

Re: A Guide to Intermittent Fasting

#40

Post by thrownblown »

logicalmike wrote: post #39

I've cycled through many methods of eating, trying to find an optimal diet to pair with heavy weight training for 6-7 days a week.. while at the same time keeping my weight more or less the same (with only slight fluctuations). Intermittent fasting (or more specifically, following a loose version of the Renegade Diet) is where I landed.. and have been able to keep my weight steady while still making strength gains. I…

I've been playing with IF and high activity too, and have been struggling to find a good balance.

My sport (track cycling) is very power intensive and has both strength and endurance components.

I have two eating periods on active days and one on my rest days. That seems to do me ok, but endurance has still been an issue.

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