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		I buy the "natural casein" free of any artificial flavors or sweeteners.
Taste		I've definitely seen good results from it, and it tastes like a chocolate shake.


Texture		Mixing it with milk makes a thick and filling drink!
Taste		The Vanilla flavour is very strong!


Texture		Smooth, rich and tastes good.
Taste		Smooth, rich and tastes good.
Taste		Would like to try other flavours.


Texture		This stuff is awesome!! Mixes perfectly with water, casien is thicker than whey so no need to waste money mixing with milk.
Taste		Tastes awesome, contain heaps of BCAAs so your muscles are being feed and are growing all night.
Mixes well		This stuff is awesome!! Mixes perfectly with water, casien is thicker than whey so no need to waste money mixing with milk.
Value for money		This stuff is awesome!! Mixes perfectly with water, casien is thicker than whey so no need to waste money mixing with milk.
Value for money		Perfect casien, well worth your money brahs


Texture		As most of you know casein can be very thick so compensate by adding more fluid.
Taste		I bought chocolate supreme and really enjoyed this products taste.
Mixes well		Several times I ended up with clumps and unmixed powder.


Texture		Casein is VERY thick so be prepared as the texture is nothing like Whey.
Taste		I've had the Creamy Vanilla and Chocolate Cake Batter flavors and both were very good; Although, I preferred the vanilla by a landslide.


Mixes well		my only complaint is that it clumps unless you have a blender, or blender bottle.


Taste		this is the worst tasting product i have ever tasted you have to add alot of fruit and other stuff in or for it to mix as well as to taste good


Taste		I usually purchase the cookies and cream flavor, which I must say is excellent.
Taste		Mixes well and tastes great.
Taste		This flavor mixes horribly regardless of what you mix it with.
Taste		I will not purchase this flavor again.
Mixes well		Mixes well and tastes great.
Mixes well		This flavor mixes horribly regardless of what you mix it with.
Mixes well		I can shake this for 10 minutes and am still left with a clumpy shake with half the powder stuck to the sides of the shaker cup.


Strength		My strength has went up and my weight has gone down while using this Casein.


Texture		The only downside is that the powder doesn't always mix as it should, sometimes clumps remain, and other times it has a grainy texture.
Taste		It tastes (when mixed with 12 ounces of milk) like a cold hot cocoa.
Taste		By far the best tasting supplement that I've ever consumed.
Mixes well		It tastes (when mixed with 12 ounces of milk) like a cold hot cocoa.
Mixes well		The only downside is that the powder doesn't always mix as it should, sometimes clumps remain, and other times it has a grainy texture.


Taste		Very nice Caseine, It mixes very well, no clumps, The taste is the not too sweet, thing that I love, I'd love to try the chocolate flavor!
Mixes well		Very nice Caseine, It mixes very well, no clumps, The taste is the not too sweet, thing that I love, I'd love to try the chocolate flavor!


Mixes well		I used to have a lot of clumps and it was really think because I took it with milk.


Suppressed appetite		This product allows me to stay full throughout the day, serves a a great meal replacement at night, and a scoop before bed helps me to not feel so sore the next morning.


Texture		but its more of a thick shake so the chunks are less noticeable.
Texture		but the texture makes me want to puke.
Taste		The taste on its own isnt too shabby
Mixes well		Do not get this or any other casein if you are not willing to put up with awful mixability!


Texture		I ordered the cookies and cream flavor, mixed it with water because I'm lactose intolerant, and it tasted really chalky with and bad medication-like after taste.
Taste		The taste
Taste		I ordered the cookies and cream flavor, mixed it with water because I'm lactose intolerant, and it tasted really chalky with and bad medication-like after taste.
Taste		I recommend getting another flavor.
Suppressed appetite		From what I can tell you is that this product works at filling your appetite.

100% Casein Protein (Optimum Nutrition)

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