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Protein - Whey vs. Casein

Posted on 6/20/23 at 3:26 pm
Posted by Duck
Member since Dec 2006
361 posts
Posted on 6/20/23 at 3:26 pm
Been using Vital Performance Protein powder (which in general I like) -- just realized it is 20% Whey & 80% Casein.

Are there any actual downsides to this vs. a higher percentage of Whey protein?

What say the experts on this board?

TIA
Posted by BilbeauTBaggins
probably stuck in traffic
Member since May 2021
4352 posts
Posted on 6/20/23 at 4:15 pm to
Not an expert but just from google searching, casein is absorbed/digested much slower than whey, which can lower appetite.
Posted by Oates Mustache
Member since Oct 2011
22057 posts
Posted on 6/20/23 at 4:39 pm to
Interesting. But whey isolate is promoted as being more bioavailable so wouldn't you just be wasting a bunch of the casein?
Posted by Duck
Member since Dec 2006
361 posts
Posted on 6/20/23 at 4:43 pm to
I don't know if "wasting" would be the concern. The concern would be you miss the prime window after workouts to bludgeon your muscles w/ protein, since a chunk of the protein is not immediately available to the muscles.

I honestly don't know, hence the question to the board.

I typically drink coffee w/ two scoops right after a workout and then a shake w/ another two scoops on the way to work ~1.5 hrs after working out.

Just curious if any of this matters or if I am just overthinking all of it. Figured someone on here is much more knowledgeable re: bioavailability.
This post was edited on 6/20/23 at 4:44 pm
Posted by Duck
Member since Dec 2006
361 posts
Posted on 6/20/23 at 4:56 pm to
Study from 2013

Found the above saying it doesn't really matter, but the study was with women's basketball players and super small sample.
This post was edited on 6/20/23 at 4:57 pm
Posted by lofty
Member since Dec 2019
404 posts
Posted on 6/20/23 at 9:18 pm to
Casein carries a real high calcium load. I limit my casein d/t that to 1 scoop a day.
Posted by Anemone
New Orleans
Member since Feb 2016
98 posts
Posted on 6/20/23 at 11:49 pm to
Baby formula is all about whey protein being best for the tiny human's growth. Whey is way betta.
Posted by BLP
In the woods
Member since Jul 2022
126 posts
Posted on 6/27/23 at 5:46 pm to
I'm no expert but I used to eat 1/2 cup full fat large curd cottage cheese after dinner / before bed. Since it's loaded casein protein and slow release it helps repair muscles while I slept. I've even added a little chocolate casein protein powder to it and hit it with emulsion blender for a pudding consistency. As far as which is better, whey or casein, I can't say. But I think they both have their advantages depending on when you're taking them.
Posted by IBeenYeetin
Member since Sep 2019
269 posts
Posted on 6/29/23 at 7:43 pm to
As long as it's from a high-quality source, most will say protein is protein. Casein is a whole lot thicker than whey and digests slower, which is why most use a casein before bed. Both have their place, although I stick to Whey, typically. There are plenty of good protein blends that have a better ratio of Whey to casein on the market, just find one you like
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