3

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Would Casein Product Delay Benefits of Fasting?

Answered on September 12, 2014
Created March 26, 2013 at 3:19 PM

So the benefits of fasting (as I believe) mainly begin when your body has fully digested and has the chance to "Rebuild, Recover, etc". So would having some kind of casein protein (milk or similar) right before beginning a fast DELAY the benefits since it takes 8 hours to digest?

Not so much concerned but curious about the scientific approach to this. Thanks!

3d58b5fb4f9780e2f47d4dcc53338a5a

(2771)

on March 26, 2013
at 06:03 PM

Interesting articles. From what I'm reading, it seems like the isolated casein effects insulin less. If combined with sugars, like lactose, the increase in IGF really kicks up the effect of the insulin surge from the sugars. The second article's title even says "Put on weight easily? Casein is better than whey" which indicates to me that casein, in general, would probably hinder fasting. I don't know enough about these protein shakes to know if they contain sugars. The important question to determine is dependant on your goals. If you're body building, then maybe it's a good thing.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:40 PM

Interesting to note also that in the first linked study, starch is less insulinogenic than lactose.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:35 PM

That being said, the insulin response of whey doesn't necessarily make you fat either.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:34 PM

Also, would it not make more sense for sea mammals (dolphins, whales, sea lions, etc) to be fat when young? Their milk is the inverse ratio of humans, at 80% whey and only 20% casein.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:33 PM

And here http://www.ergo-log.com/wheycas.html

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:32 PM

This is not true about casein.. Here, have a look http://ajcn.nutrition.org/content/80/5/1246.full.pdf+html

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 04:55 PM

Whether that means it delays the alleged "benefits" of fasting or fasting in a particular window, I have no idea.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 04:48 PM

I've thought about this too and for this reason don't really think Martin Berkhan fasts nearly as long as 16 hours in a day. Probably more like 4-8, considering the massive amount of cottage cheese and/or casein protein powder that guy consumes. Just my personal thoughts. I consume cottage cheese and Greek yogurt and casein protein and don't really care about the fasted window. It's about calorie control and nutrient timing.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 04:47 PM

I've thought about this too and for this reason don't really think Martin Berkhan fasts nearly as long as 16 hours in a day. Probably more like 4-8, considering the massive amount of cottage cheese and/or casein protein powder that guy consumes. Just my personal thoughts. I consume cottage cheese and Greek yogurt and casein protein and don't really care about the fasted window. It's about calorie and nutrient timing.

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3 Answers

1
D05f3050dc3d973b8b81a876202fa99a

(1533)

on March 26, 2013
at 08:23 PM

I don't think so. Not using science here, but both Martin Berkhan and Andy Morgan recommend casein, over other protein supplements, at night before bed (if you plan on using them at all). They're not medical doctors, but they're qualified to speak on the subject in my opinion.

0
3d58b5fb4f9780e2f47d4dcc53338a5a

(2771)

on March 26, 2013
at 04:59 PM

From what I've read, casein is the most insulinagenic proteins out there. Protein does increase insulin levels, but not nearly the same as carbs do, but casein seems have a lot more impact on increasing insulin levels. I guess it makes sense. Fat babies means better survival, so having a greater insulin response to milk is a good paleo survival trait.

I think the insulin response is probably more impactful than the time it takes to digest it.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:34 PM

Also, would it not make more sense for sea mammals (dolphins, whales, sea lions, etc) to be fat when young? Their milk is the inverse ratio of humans, at 80% whey and only 20% casein.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:33 PM

And here http://www.ergo-log.com/wheycas.html

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:40 PM

Interesting to note also that in the first linked study, starch is less insulinogenic than lactose.

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:32 PM

This is not true about casein.. Here, have a look http://ajcn.nutrition.org/content/80/5/1246.full.pdf+html

1edb06ded9ccf098a4517ca4a7a34ebc

(14952)

on March 26, 2013
at 05:35 PM

That being said, the insulin response of whey doesn't necessarily make you fat either.

3d58b5fb4f9780e2f47d4dcc53338a5a

(2771)

on March 26, 2013
at 06:03 PM

Interesting articles. From what I'm reading, it seems like the isolated casein effects insulin less. If combined with sugars, like lactose, the increase in IGF really kicks up the effect of the insulin surge from the sugars. The second article's title even says "Put on weight easily? Casein is better than whey" which indicates to me that casein, in general, would probably hinder fasting. I don't know enough about these protein shakes to know if they contain sugars. The important question to determine is dependant on your goals. If you're body building, then maybe it's a good thing.

0
F299706618ad5d2c014130cb35d07dcf

on March 26, 2013
at 04:26 PM

I am a type 1 diabetic and I have to take insulin with my 0g of carb casein shake. So my guess is that yes, it would delay fasting. Your body can convert protein into glucose!

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