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		The taste is great and I love to mix it with Almond Milk.
Suppressed appetite		It also does curb my appetite, so I do not have that starving feeling in the morning.


Texture		Choc Cake Batter is nice, mixes well by casein standards (wallpaper glue), taste and texture just like chocolate icing or cake batter, a little gritty and sweet
Texture		but is still creamy with water, use just a little liquid (about 1:2) otherwise the texture goes too thin.
Taste		Choc Cake Batter is nice, mixes well by casein standards (wallpaper glue), taste and texture just like chocolate icing or cake batter, a little gritty and sweet
Taste		Tastes better with milk
Mixes well		Choc Cake Batter is nice, mixes well by casein standards (wallpaper glue), taste and texture just like chocolate icing or cake batter, a little gritty and sweet


Taste		Creamy Vanilla is the best tasting protein i've had.
Taste		I usually always want more soon as i drink it, its delicious


Taste		The flavor of the Banana Cream DOES taste like the artifical banana flavor we're all use to,
Taste		Mix with milk for better taste.


Taste		Great taste!
Taste		They literally ask me to make them a drink of it just because they like the taste and it's a healthy snack.


Taste		Chocolate cake batter flavour is extremely disappointing.
Taste		Tastes like chemicals.


Taste		but decided to try a cheaper brand with the same flavor.
Value for money		but decided to try a cheaper brand with the same flavor.


Taste		Good product, great taste.
Taste		No added supps and less flavors to choose from,
Taste		but who cares, its not about the taste, just get the stuff in you.

Diarrhea	The extra bcaas from this product causes me to run to the bathroom to **** out all of the excess amino acids that ive taken in that day.


Texture		although casein is in Combat and that breaks down pretty smooth when shaking it up.
Taste		but oh so tasty.
Mixes well		but will still be clumpy


Taste		taste was decent when mixed with water.
Mixes well		taste was decent when mixed with water.


Texture		The texture was awful..
Texture		If taste and texture doesn't matter to you than it's a good shake.
Taste		Horrible, I bought a 4lb tub of this and ended up throwing away more than half.. It mixes bad, and tastes worst.
Taste		If taste and texture doesn't matter to you than it's a good shake.
Mixes well		Horrible, I bought a 4lb tub of this and ended up throwing away more than half.. It mixes bad, and tastes worst.


Texture		It was also extremely thick making it hard for me to down.
Taste		The flavor was bland and tasted like a cardboard box with some cocoa.


Muscle gain		but notice a difference helping with recovery as well muscle gains.
Taste		Mixes well taste great!, love how its low in sugar.
Mixes well		Mixes well taste great!, love how its low in sugar.
Recovery ability		but notice a difference helping with recovery as well muscle gains.


Taste		Helps with recovery and appetite and taste pretty darn good.Will be purchasing again.
Suppressed appetite		Helps with recovery and appetite and taste pretty darn good.Will be purchasing again.
Recovery ability		Helps with recovery and appetite and taste pretty darn good.Will be purchasing again.


Taste		did not mix well with milk, very lumpy shakes, tasted great if mixed properly, took it at night before bed to metabolize over night and it upset my stomach occasionally due to it being heavy


Taste		Tastes Great with anything.
Taste		Tastes like chocolate cake and keeps me good through the night.


Texture		I mix this with less water and it comes out nice and thick and tastes like brownie mix.
Taste		I mix this with less water and it comes out nice and thick and tastes like brownie mix.
Taste		I would drink it even if it tasted like raw flour since I do it for nutrition and not flavor

100% Casein Protein (Optimum Nutrition)

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