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		This stuff tastes good and of course it supplies you with protein.
Ingredient profile		With High Fructose Corn Syrup, Palm and Kernol Oil and Sugar as one of its first few ingredients it made me not a fan of it.


Taste		I have to be full when I go to sleep and this shake gives me a great feeling of fullness before I head into recovery mode..it doesnt taste bad at all either.
Taste		I mix one full scoop of the chocolate flavor with 1/2 scoop of the banana flavor and you got yourself a **** good shake before hittin the sackk.
Recovery ability		I have to be full when I go to sleep and this shake gives me a great feeling of fullness before I head into recovery mode..it doesnt taste bad at all either.
Ingredient profile		Great profile, high protein, low carbs, 120 calories..this is my staple casein protein.


Texture		Great taste, texture, macronutrient profile, etc.
Texture		Casein has a much thicker consistency, and greater volume than what you would find with whey protein, which helps with a feeling of fullness.
Taste		Great taste, texture, macronutrient profile, etc.
Taste		Though flavors are not important when you're a serious lifter,
Anti-catabolic		Casein will slowly release aminos into the bloodstream, helping to maintain and build muscle all night long.
Ingredient profile		Great taste, texture, macronutrient profile, etc.


Taste		Taste was brutal, nothing like peanut butter.
Taste		I ended up mixing it was a great tasting isolate before bed to improve it.
Taste		Better tasting stuff out there.


Texture		Tastes pretty good, have to mix a bit more than they recommend to get the grittiness out,
Taste		Tastes pretty good, have to mix a bit more than they recommend to get the grittiness out,


Taste		It mixes very well, does not hit my stomach like a lead weight (using one scoop), and the taste is not bad.
Mixes well		It mixes very well, does not hit my stomach like a lead weight (using one scoop), and the taste is not bad.
Value for money		In conjunction with their whey, this has really improved my gains over taking the cheap stuff from your local store.


Taste		I've tried a few other flavors,
Taste		It's a good simple flavor.


Taste		Optimum has the best tasting protein powders by far.
Suppressed appetite		This casein curves my appetite very well.


Texture		I drink it with milk for the extra protein and I cannot believe how thick this is!
Taste		The flavor of this is the worst flavor I have had
Taste		I love the ingredients, it mixes well, now I just need to find a better flavor for me.
Mixes well		I love the ingredients, it mixes well, now I just need to find a better flavor for me.
Value for money		I will say that for the money, it is a great buy.
Ingredient profile		I love the ingredients, it mixes well, now I just need to find a better flavor for me.


Taste		The 2nd time I took it, I threw it back up, the taste of this stuff is awful.
Taste		Definately needs some improvements in the taste dept.


Texture		It is a little thicker than whey protein,
Taste		but tastes awesome.


Taste		Very good protein, I had to get use to the taste at first,


Taste		but in a blender i have no problems, excellent flavor and effectivenes one of the best bed time proteins

100% Casein Protein (Optimum Nutrition)

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