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 Banana Cream flavor is addictingly good and I may switch from my 10lb sack of gold-standard Whey protein, to a smaller size so I can have this flavor more often!


Taste		The Chocolate Supreme is by far and large the best tasting Casein I have ever had!


Taste		So, ON Blue Berry casein works well, I can take a scoop in a plastic baggy, get a cheapo 6oz paper coffee cup and mix a little casein "pudding/bread" and eat it, it's tasty and satisfies.
Taste		Tasted great, people might think you are eating something rotten.
Value for money		So, ON Blue Berry casein works well, I can take a scoop in a plastic baggy, get a cheapo 6oz paper coffee cup and mix a little casein "pudding/bread" and eat it, it's tasty and satisfies.
Value for money		A scoop of casein, 2 egg whites, some coconut flour, some stevia and some baking powder, and microwave and you have a protein rich snack that makes you feel like your eating cheap blue berry muffin, or cobbler, (depends on your cook times) I know it's very costly for a protein source;


Taste		but DO NOT skip out on it because of the flavor.
Taste		but it tastes ****ght
Anti-catabolic		Great way to keep the attained muscle and get those extra calories you need in a day.
Endurance		take this 30 min to an hour before I crash and honestly wake up in the morning feeling much more energized and less fatigued after a hard days workout than if I had not taken casein.
Physical energy		take this 30 min to an hour before I crash and honestly wake up in the morning feeling much more energized and less fatigued after a hard days workout than if I had not taken casein.


Muscle gain		I actually put on noticeable lean muscle mass while on this and even strength gains.
Strength		I actually put on noticeable lean muscle mass while on this and even strength gains.


Taste		I want to try different flavors though.
Taste		The chocolate peanut butter just wasn't that good tasting.


Taste		Tastes fking awsome.
Taste		Add strawberries or even apples and its just delicious.


Taste		Tastes great, mixes well.
Mixes well		Tastes great, mixes well.


Texture		Raspberry smoothie doesnt deserve 6.8 for rating.
Taste		This is a great product by optimum, and it is probably the best tasting overall protein I have ever had.


Texture		Better mix-ability and thickness compared to dymatize.
Taste		Horrible chemical taste.


Taste		I'm not sure why some people don't love the taste
Taste		but to me this stuff is delicious.
Taste		I mix it with milk after my workout before bed and man, it tastes just like advertised.


Texture		It's much thicker going down than traditional Whey protein.
Taste		It also tastes superb.

Gas or bloating	no bloating or upset stomach.
Upset stomach	no bloating or upset stomach.


Texture		I use it primarily to make high protein puddings and fluffs because it has the perfect volume and consistency.
Taste		Optimum Nutrition's Gold Standard 100% Casein is far and away the best tasting casein protein I have ever tried.
Taste		You have no idea how good protein powders can actually taste until you try ON's caseins!


Taste		It tastes good with milk or water.
Mixes well		Gets clumpy


Texture		This was thick and tasted amazing.
Taste		This was thick and tasted amazing.


Recovery ability		I take this before bed really helps my recovery since I have been using this casein slow digestive protein it has made me much less hungry throughout the night.


Texture		but the taste just isnt very good, has a very gritty bit to it.
Taste		but the taste just isnt very good, has a very gritty bit to it.

100% Casein Protein (Optimum Nutrition)

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