100% Casein Protein (Optimum Nutrition)

User rating

3.8

out of 5

1567 user reviews

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Format	Store	Notes	Price/serving	Price
4 lb	A1Supplements.com	Shipping: Calculated by weight Save $5 on orders > $90: Code - 5OFFA1 Free gift with orders > $90 Save 4% on orders > $200 Save 8% on orders > $500	$0.74	$42.95
4 lb	I'll Pump You Up	5% off any order: Code - SubstanceReviews	$0.74	$42.95
4 lb	Bodybuilding.com	Shipping: Flat rate - $5.99 (up to 40 lb) 5% off new customers: Code - NewCustomer5PerOff Other coupon codes on the left side of this page	$0.77	$44.89

Sometimes slower is better - especially when it comes to the rate of protein digestion. While rapid protein absorption is desirable immediately before or after exercise, delayed release is probably more beneficial throughout the remainder of the day.

Casein proteins are pH sensitive and gel in the acidic environment of the stomach. As a result, it can take more than twice as long for caseins to be broken-down into their amino acid sub components than whey and other proteins. Because of these unique "time-released" qualities, caseins are aptly described as being anti-catabolic, or muscle-protecting, proteins.

Average user rating from: 1567 users


Overall rating		3.8
Euphoria (4 ratings)		3.9
Mental energy (1 rating)		1.0
Focus (1 rating)		0.5
Length of effects (1 rating)		5.0
Low development of tolerance (1 rating)		1.0
Low dependence (1 rating)		1.0
Fat loss (22 ratings)		4.4
Vascularity (3 ratings)		2.2
Pump (4 ratings)		4.0
Thermogenic effect (2 ratings)		3.5
Texture (468 ratings)		4.0
Muscle gain (66 ratings)		4.4
Strength (21 ratings)		3.8
Taste (1386 ratings)		4.2
Mixes well (402 ratings)		4.3
Safety (5 ratings)		5.0
Suppressed appetite (19 ratings)		3.9
Recovery ability (81 ratings)		4.7
Anti-catabolic (37 ratings)		4.7
Endurance (6 ratings)		3.6
Low side effects (2 ratings)		3.0
Physical energy (11 ratings)		4.2
Value for money (125 ratings)		4.3
Ingredient profile (39 ratings)		4.5

Reported side effects (adverse events)


Diarrhea	4 users (0%)
Difficulty sleeping	2 users (0%)
Gas or bloating	7 users (0%)
Nausea or vomiting	4 users (0%)
Shakes	7 users (0%)
Upset stomach	5 users (0%)

Find other supplements effective for

Muscle gain


Taste		First off I would like to say this is my the best protein powder i have ever tasted, in water or milk.


Taste		Does wonders for my recovery and it's a very tasty bedtime snack!
Recovery ability		Does wonders for my recovery and it's a very tasty bedtime snack!


Texture		It mixes quite easy (as long as you pour it into the fluid, and not the fluid on the powder), and it is thicker than the whey powder by the same company.
Muscle gain		It is a high quality product, which has helped me see great gains.
Taste		It keeps me full, and the taste is just super!
Taste		The chocolate supreme one tastes like real chocolate pudding.
Taste		It feels you up and tastes amazing.
Mixes well		It mixes quite easy (as long as you pour it into the fluid, and not the fluid on the powder), and it is thicker than the whey powder by the same company.
Value for money		The price is as you expect is on the expensive side,


Texture		One cup of milk per serving works well, otherwise it can be a little thick
Taste		Taste is AMAZING!


Texture		It mixes great the only thing is that it tastes a little chalky
Taste		It mixes great the only thing is that it tastes a little chalky
Mixes well		It mixes great the only thing is that it tastes a little chalky


Texture		The chalkiness threw me off
Mixes well		but it's not terrible, and it mixed fine in my shaker bottle with water and milk


Texture		It's also unexpectedly thick, which (if you're not careful) could result in clumps of powder getting stuck in the corners of your shaker and getting "glued" there by dampened powder (like a little pocket).
Taste		but the taste can make you gag.
Taste		The stuff itself tastes like bad Reese's knockoffs: not really peanutbuttery and not chocolatey...just this strange mix of both that isn't very appetizing at all.
Taste		This is the first time I've gotten this, and I have to say that it definitely seems to be a decent product...aside from the issues with its weird powder-pocketing properties and displeasing taste.
Mixes well		It's also unexpectedly thick, which (if you're not careful) could result in clumps of powder getting stuck in the corners of your shaker and getting "glued" there by dampened powder (like a little pocket).


Texture		on the downside, it does have a chalky taste to it though
Taste		on the downside, it does have a chalky taste to it though


Taste		I love taking this product each night before bed and i wakeup feeling stronger and harder then the day before, it also mixes and tastes very good.
Taste		I bought the chocalate supreme flavor and it tastes very good and it is filling.
Mixes well		I love taking this product each night before bed and i wakeup feeling stronger and harder then the day before, it also mixes and tastes very good.


Taste		Very good tasting protein.
Taste		Solid formula in this protein, and the taste was pretty good.


Taste		Firstly,I want to say that this the first Casein product I had tried,so I was excited to see what it was good for.However, I must say this was absolutely the worst thing I had ever tasted.Honestly,it was so bad that I almost barfed,intact, I threw the entire serving away.The nutrition of it seems great,


Texture		Kinda thick
Taste		By far the better flavor out of the others.


Taste		really like the flavor,
Mixes well		but it mixes terribly, even in the Blender Bottle, guess i should use a real blender lol.


Texture		Gets the job done, mixability is ok, i guess you gotta have a taste for something a thick as this stuff,
Taste		Gets the job done, mixability is ok, i guess you gotta have a taste for something a thick as this stuff,
Mixes well		Gets the job done, mixability is ok, i guess you gotta have a taste for something a thick as this stuff,


Texture		Great taste, consistency of the powder not the greatest, make sure to stir if up good, I like to add milk to make It like a shake, definitely helps get rid of muscle pain if used at night, also a great meal replacement.
Taste		Great taste, consistency of the powder not the greatest, make sure to stir if up good, I like to add milk to make It like a shake, definitely helps get rid of muscle pain if used at night, also a great meal replacement.


Texture		The only downside to this protein is that you need about 10-12oz of liquid to make it drinkable because it is so thick and slightly chalky (at least this flavor is).
Taste		I used to take Optimum's 100% Casein 3 years ago, and was very dissappointed with the way it mixed and tasted.
Taste		You can really taste how different Whey and Casein are.
Taste		The only downside to this protein is that you need about 10-12oz of liquid to make it drinkable because it is so thick and slightly chalky (at least this flavor is).
Taste		gains, recovery, and taste are all there.
Mixes well		I used to take Optimum's 100% Casein 3 years ago, and was very dissappointed with the way it mixed and tasted.
Recovery ability		gains, recovery, and taste are all there.


Texture		It also has a weird texture to it.
Value for money		Just stick with cottage cheese, it's cheaper, tastier, and more enjoyable to have.


Taste		Another good tasting protein and does what casein protein is designed to do.
Mixes well		Mixes up well and is easy to drink quickly.


Texture		The taste is awesome and it gets thicker when you mix it to help fill you up.
Taste		The taste is awesome and it gets thicker when you mix it to help fill you up.

100% Casein Protein (Optimum Nutrition)

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