Whey Protein Isolate

Whey Protein Isolate

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Cross Flow Filtered Whey High In Branch Chain Amino Acids!
9.1  out of 10  (224 Reviews)
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Product Overview

Whey Protein Isolate

  • Cross-Flow Microfiltered
  • All Natural - No Aspartame
Image of a NOW product bottle

Egg Free

Gluten Free

Available In Powder

NOW Whey Protein Isolate is a high quality protein supplement that is both bioavailable and easily digested.* Whey protein contains a high concentration of Branched Chain Amino Acids (BCAA's), which are important for efficient muscle metabolism and exercise recovery.* These qualities make NOW Whey Protein Isolate an ideal supplement for active individuals. Whey protein is considered to have the highest Biological Value of any protein source - superior in essential amino acid content to beef, milk, casein or soy.

Ratings & Reviews

Whey Protein Isolate
Overall Rating
224 Ratings
Verified Buyer Rating
104 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
Natural sem sabor
By clicking the button above, you agree to entering the Bodybuilding.com Reviews section. Products in the Store are not intended to diagnose, treat, cure, or prevent any disease.
Oct 31, 2020
Verified Buyer
  • 1 Natural Unflavored

I'm a returning customer, I've been gone 4 yes. I came back fearing the worst, I hoped they hadn't changed the formula! But I see here in reviews, that they have. Dang it! All the supplement drinks I've tasted were horrible until I found this one and now its nasty too! Does anyone have a recommendation for something else? I had gastric bypass and I have to drink a supplement to make up for the protein I can't eat.

May 09, 2020
Verified Buyer

I have purchased NOW Whey Protein isolate unflavored for the last 7 years. The last 3 bags I received had a different texture (more powdery) and were undrinkable. Either the manufacture has changed the formula or the product is seriously defective.

Mar 31, 2020
Verified Buyer
  • 10 Natural Unflavored

If you are just adding water this may not be ideal, but I find it perfect for blending into smoothies. I had found flavored whey protein isolate to often overpower the other ingredients. I'd always rather add strawberries than strawberry flavoring.

Mar 27, 2020
Verified Buyer
  • 6 Creamy Vanilla

I have purchased this protein 3 times (10 lbs) (creamy vanilla) and I was very happy with the taste and how well was dissolved the first time and I could easily have given 10/10. However, the second Protein bag that I got was completely different in taste and texture as powder. This is very disappointing because I haven't consumed the second bag because the taste and the texture gives different taste which I dont like. Not sure if this is a manufacturer mistake or they completely changed to something new.

Nov 15, 2019
Verified Buyer
  • 10 Dutch Chocolate

I have been using this protein powder for over a decade. It is by far my favorite choice for flavor and content. I have tried many over the years and this is the only one that doesn't leave an unpleasant aftertaste. Besides the flavor, this one is clean high protein sweetened with stevia.

Sep 21, 2019
Verified Buyer
  • 10 Creamy Vanilla

For me , it is the best tasting & best ingredients of any Whey protein anywhere. Always has been. I have 2 protein shakes a day & it is exactly what my body needs. I would highly recommend it to everyone who wants all the good stuff for you & nothing bad.

Jul 11, 2019
  • 10 Natural Unflavored

It mixes well in a shaker or blender and I love adding it to my morning coffee. This brand of protein also has great ratings from cleanlabelproject.org and labdoor.com.

Feb 25, 2018
  • 9 Natural Unflavored

I choose this product that is clean of sugar and unatural sweeteners. The taste is actually awful at first, but becomes bearable after I have used it for a few weeks. I also added few drops of Stivia sweetener to improve taste. I think the company can improve the project by adding it to a Stivia sweetener.

Feb 04, 2018
Verified Buyer
  • 10 Natural Unflavored

Going through my 2nd 10lb right now and I'm really happy with it and the absence of extra additives!

Oct 17, 2017
Verified Buyer
  • 10 Dutch Chocolate

Both the Van and Choc have a light flavor not a strong sweetness like most Wheys on the Mkt. Also, take note it's very clean in Macros. Beats all competitors when comparing Macros and serving size of the scoop.

Sep 19, 2017

After reading positive reviews on Labdoor.com, i thought i'd give this a try. It mixed well with water, but as others stated, it has that mild chalk taste. I can sacrifice taste for quality. I would buy again.

Sep 05, 2017
Verified Buyer

You can't beat the low calorie/low carb/low sugar/low cholesterol ratio to the protein content. Great product for the health conscious consumer.

Jul 18, 2017
Verified Buyer

Absolutely the worst protein I've ever tasted. Is it because it's so natural that it makes me want to throw up? The reason why I decided to try this product was because we're trying to conceive again and base on number of reviews. It all points to this product is the most natural and do not contain much junk and it was the only reason why I decided to give this protein a try. This is probably one of the worst protein I've ever tasted.

May 26, 2017
Verified Buyer
  • 7 Natural Unflavored

i purchased 2x5lb tubs, one unflavoured and one strawberry. it's a good protein which mixes well and doesnt contain crap. it's not overhyped which is great. we all know that over hype products sure are crap. this is basic quality whey isolate for a great price. by the way, people on review section complaining that it doesnt mix well must be shaking the thing like freaking grannies. i shake it proper and mixes well no problem. strawberry taste is very mild, i have seen better tasting whey powders but it smells good, only if it tasted a bit more stronger would be perfect. unflavoured is ok it basically tastes what whey is supposed to taste without flavour. people must understand that unflavoured whey doesnt mean no taste. it will taste like pure whey which reminds of milk flavour but stronger.

Apr 26, 2017
Verified Buyer
  • 9 Dutch Chocolate

I have been purchasing the 10 pound bag of Dutch Chocolate for some time now and I love the product. I mix mine with low fat chocolate milk and it is great. I have seen some comments on how it doesn't mix well and I can say that I have not had this issue ever. It is a good protein that does not have a lot of added junk. If you want a simple protein isolate then this is a very good one.

4 Sizes
1.8 Lbs.
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1 Flavor
Creamy Vanilla
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Price: $35.99  ($1.38 / Serving)
Flavor Rating: 8.0


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Cross Flow Filtered Whey High In Branch Chain Amino Acids!

What's in NOW Whey Protein Isolate

1.8 Lbs. Natural Vanilla
Serving Size 1/3 Cup (32 g)
Servings Per Container About26
Amount Per Serving
Calories 120       
% Daily Value *
Total Fat .5 g <1%*
Saturated Fat 0 g 0%*
Trans Fat 0 g       
Cholesterol 5 mg 2%
Sodium 50 mg 2%
Total Carbohydrate 2 g <1%*
Dietary Fiber 1 g 4%*
Sugars 0 g       
Xylitol 1 g       
Protein 25 g 50%*
Vitamin D 0%
Calcium 10%
Iron 2%
Potassium 4%
* The % Daily Value (DV) tells you how much a nutrient in a serving of food contributes to a daily diet. 2,000 calories a day is used for general nutrition advice.
Whey Protein Isolate, Xylitol, Natural Vanilla Flavors, Xanthan Gum, Organic Stevia Leaf Extract, Sunflower Lecithin
Contains Milk.

Directions For Whey Protein Isolate: Add 1 level scoop (34.5 g) daily to 8 oz. of cold water or milk, and blend.

Warnings: Use this product as a food supplement only. Do not use for weight reduction. If ingredients contain Xylitol, do not feed to pets.

* These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
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