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The Best Whey Protein Isolate Powder

Last updated on June 2, 2020

We looked at the top 10 Whey Protein Isolate Powders and dug through the reviews from 76 of the most popular review sites including Supplement Reviews, Best Workout Supplements Blog, Good Housekeeping, The Gym Rat World, The Healthy RD, The Source and more. The result is a ranking of the best Whey Protein Isolate Powders.

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Our Picks For The Top Whey Protein Isolate Powders

Show Contents
Our Take
Experts Included
Pros
Cons
  The Best Overall
  The Best Value

Nutricost Whey Protein Isolate Powder, Milk Chocolate

Nutricost

Whey Protein Isolate Powder, Milk Chocolate

Overall Take

Good Flavor and ValueThis whey protein isolate powder is a low-carb, high-protein product with a lot of flavors.

Experts Included
DWYM Health & Wellness Experts plus BestReviews, ProteinPowder.net, Chicago Tribune, Train Your Body With Voicu. Along with user reviews from Amazon and Walmart.
Pros
" Lower amounts of carbs, fat, and sugars than many other powders on the market. Gluten-free formula that offers 25 grams of protein per serving. Beyond the unflavored formula, vanilla and chocolate options are available too. Lower calorie count than competitors...."
Cons
"The only issue I found was with mixing it, it did take a little bit of sorcery to get it to the right consistency."

Dymatize ISO100 Hydrolyzed Whey Isolate, Chocolate Peanut Butter

Dymatize

Hydrolyzed Whey Isolate, Chocolate Peanut Butter

Overall Take

Easy DigestingThis whey isolate powder is loaded with nutrition and BCAA's and it's designed to digest easily.

Experts Included
DWYM Health & Wellness Experts plus BestReviews, Bar Bend, Protein Guide, Fighting Report, dietspotlight, Protein Powder and 6 more. Along with user reviews from Amazon.
Pros
" Multiple great tasting flavor options that work well in various recipes. Deliver 25 grams of protein per serving, and it has extremely low levels of sugar, carbs, and fat. Pure whey protein isolate, so it's easy to digest. Includes 5.5..."
Cons
"It is a tiny bit salty, with 160 milligrams of sodium or 7 percent of the recommended daily intake. Contains soy. Contains artificial sweeteners. A little pricy."

NOW Sports Whey Protein Isolate Powder, Unflavored

NOW Sports

Whey Protein Isolate Powder, Unflavored

Overall Take

With BCAAsThis whey protein isolate powder is full of great nutrition, it's low in calories and the unflavored powder has limitless uses.

Experts Included
DWYM Health & Wellness Experts plus Supplement Review Pal, USA Home Gym, Verywell Fit, Whey and Weigh, Labdoor, Top Ten Product Review and 4 more. Along with user reviews from Amazon.
Pros
" NOW was one of the very first companies to voluntarily adhere to standards. Their products are made with a high degree of cleanliness and quality control. The size options are also unique they are 10 pound, 5 pound, 1.8 pound..."
Cons
"Does include dairy."

Isopure Zero Carb Keto Whey Protein Isolate, Unflavored

Isopure

Keto Whey Protein Isolate, Unflavored

Overall Take

Great for RecipesThis unflavored protein powder is great for adding protein to your favorite recipes without effecting the overall flavor.

Experts Included
DWYM Health & Wellness Experts plus BestReviews, USA Home Gym, The Z8, Products Browser, Total Shape, Top Ten Product Review and 3 more. Along with user reviews from Amazon, Walmart and Target.
Pros
" 25 grams of protein per serving. 17 flavors including unflavored option. Disolves easily without clumping-no blender needed. Great price for the amount you get. Doesn't leave an aftertaste. Low-carb protein powder."
Cons
"Taste is not good."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
17

Products Considered

We identified the majority of the whey protein isolate powders available to purchase.
10

Products Analyzed

We then selected the leading and most popular products for our team to review.

View All Product Rankings

76

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Supplement Reviews, Best Workout Supplements Blog, Good Housekeeping, The Gym Rat World, The Healthy RD.

109,789

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon, Walmart, Target and 16 others.

Our experts reviewed the top 10 Whey Protein Isolate Powders and also dug through the reviews from 76 of the most popular review sites including Supplement Reviews, Best Workout Supplements Blog, Good Housekeeping, The Gym Rat World, The Healthy RD, The Source and more. The result is a ranking of the best of the best Whey Protein Isolate Powders.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

Nutricost Whey Protein Isolate Powder, Milk Chocolate

Our Expert Score
9.4
4 expert reviews
User Summarized Score
8.8
787 user reviews
Our Take

Make your protein shakes taste just the way you like them with this whey protein isolate powder, as there are great flavors like milk chocolate, salted caramel, strawberry and more. You get a well-rounded whey isolate in a large supply.

What other experts liked
Lower amounts of carbs, fat, and sugars than many other powders on the market. Gluten-free formula that offers 25 grams of protein per serving. Beyond the unflavored formula, vanilla and chocolate options are available too. Lower calorie count than competitors....
- BestReviews
This particular product, the Whey Protein Isolate, is a new industry favorite. It maintains the quality users have grown to expect from Nutricost while ensuring that it meets the needs of the supplement itself. Overall I enjoyed the supplement. Yes...
- ProteinPowder.net
A versatile, great-tasting powder that can be mixed into smoothies or water. What we like: A whopping 30 grams of protein per serving. Dissolves well into liquid. No unpleasant aftertaste. Doesn't cause digestive problems for most people.
- Chicago Tribune
Good quality. It is of high quality, cold processed, rBGH Free, non-GMO, and gluten-free. Flavored and unflavored taste. Good ratio of price and quality.
- Train Your Body With Voicu
What other experts didn't like
Recipe consistency from batch to batch sometimes is off.
- BestReviews
The only issue I found was with mixing it, it did take a little bit of sorcery to get it to the right consistency.
- ProteinPowder.net
Contains artificial sweeteners that makes it too sweet for some.
- Chicago Tribune
The BCAA Ration is not Provided for this product.
- Train Your Body With Voicu

Overall Product Rankings

Nutricost Whey Protein Isolate Powder, Milk Chocolate

1. Nutricost Whey Protein Isolate Powder, Milk Chocolate

Overall Score: 9.7
Reviews Included: 9

NOW Sports Whey Protein Isolate Powder, Unflavored

3. NOW Sports Whey Protein Isolate Powder, Unflavored

Overall Score: 9.3
Reviews Included: 15

Isopure Zero Carb Keto Whey Protein Isolate, Unflavored

4. Isopure Zero Carb Keto Whey Protein Isolate, Unflavored

Overall Score: 9.2
Reviews Included: 15

Isopure Zero Carb Keto Whey Protein Isolate, Creamy Vanilla

5. Isopure Zero Carb Keto Whey Protein Isolate, Creamy Vanilla

Overall Score: 9.1
Reviews Included: 12

Bluebonnet Whey Protein Isolate Powder, French Vanilla

6. Bluebonnet Whey Protein Isolate Powder, French Vanilla

Overall Score: 9.0
Reviews Included: 11

Garden Of Life Grass Fed Whey Protein Isolate, Chocolate

7. Garden Of Life Grass Fed Whey Protein Isolate, Chocolate

Overall Score: 8.9
Reviews Included: 13

Muscle Feast Grass Fed Whey Protein Isolate, Chocolate

8. Muscle Feast Grass Fed Whey Protein Isolate, Chocolate

Overall Score: 8.9
Reviews Included: 13

Opportuniteas Grass Fed Whey Protein Isolate, Unflavored

10. Opportuniteas Grass Fed Whey Protein Isolate, Unflavored

Overall Score: 8.9
Reviews Included: 12

Our Whey Protein Isolate Powder Findings

Nutricost Whey Protein Isolate Powder, Milk Chocolate

What We Liked: Make your protein shakes taste just the way you like them with this whey protein isolate powder, as there are great flavors like milk chocolate, salted caramel, strawberry and more. You get a well-rounded whey isolate in a large supply.

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Dymatize ISO100 Hydrolyzed Whey Isolate, Chocolate Peanut Butter

What We Liked: We like how this whey isolate powder was designed with digestion in mind. It is packed with good things like BCAAs and it goes down smoothly while tasting great.

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NOW Sports Whey Protein Isolate Powder, Unflavored

What We Liked: Adding BCAAs to boost the already nutritionally-robust whey protein isolate powder was a good move in our books. This protein isolate will help you meet your protein goals while keeping the calories low and the nutrients high.

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Isopure Zero Carb Keto Whey Protein Isolate, Unflavored

What We Liked: With no flavor at all, this whey protein isolate powder can be used in many culinary applications. Add it to a shake or mix it in with your breakfast cereal, the recipe options you have are nearly limitless.

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Isopure Zero Carb Keto Whey Protein Isolate, Creamy Vanilla

What We Liked: Don’t worry about overstepping your net carb goals when you use this whey protein isolate powder, as it’s a completely carb-free product to help you boost your protein macros. The additional nutrients and electrolytes in this powder add an even stronger benefit as it helps round your diet out in areas that your food intake might lack.

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Our Whey Protein Isolate Powder Buying Guide

Eating enough protein during the day can be tough for those who are looking to ensure their muscles have the fuel they need for growth and recovery. Whey protein isolate powders are made to fill this need, as they are designed to be a high dose of protein with relatively low calories so they can be added to a normal diet easily.

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Whey protein isolate is one of three types of whey that can be produced from the byproduct of making cheese. The other two types of whey are whey concentrate and whey hydrolysate. The primary difference is that whey protein isolate is the purest form of protein from the selection and therefore can be produced to have very little calories, fat and carbohydrates, with some even being lactose or cholesterol-free.

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Whey protein isolate powder comes in many flavors and varying levels of carbohydrates and micronutrients, which can make your search for the right one a tedious and, at times, a daunting exercise that will have your head spinning.

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The first thing you should do in this search for protein is set a defined goal for what it is you want to achieve by adding this protein supplement to your diet. If you’re beginning your journey towards exercising and increasing your muscle tone or definition, it’s important to understand your recommended daily calories, as well as how much protein you need to eat.

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There are calculators online that can help you figure these numbers out. Find one that lets you input your body weight, age, height and the level of activity you have in your daily life. The output of these calculators will give you a great idea of what your lean body mass is and how much protein you need to consume every day to maintain that. Similarly, it will tell you how many calories your body burns during the day, which is the number of calories you would eat in order to maintain your current body weight.

There are whey protein isolates that have no net carbohydrates, which can be ideal for those attempting a ketogenic diet or even just a lower-carb diet. Some whey protein isolates are even packed with vitamins and micronutrients or electrolytes like magnesium and potassium, which can be tough to fit into some of our diets naturally.

Keep an eye on the serving size when you are reading the nutrition facts on any of these packages. It is a heavily debated topic in nutritional science, but it is widely agreed upon that our bodies can only process a certain amount of protein at one time. This means you shouldn’t just drink your entire daily limit of protein in one sitting as a means of getting it out of the way.

Rather, you will want to keep your single-serving sizes of protein in the range of 25-50 grams of protein so that your body can properly process and use it. If you are on the smaller size, mass-wise, you might just want one scoop of protein even if the serving size is recommended as two-scoops. This saves you money in the big picture, but also helps you pace your protein ingestion in a smart way.

It’s hard to know which brand will work well with your tummy, so it is a good idea to try a few different brands and flavors until you find the one that works harmoniously with your body.

On that note, keep an eye out for the various flavor offerings. You’ll often find chocolate, strawberry, banana, vanilla and unflavored powders. These can be mixed with water for simplicity, in which you will mainly get the exact flavor of the powder and not much more. Using protein powder as an ingredient in a smoothie is a really common way to consume it and you can find tons of recipes and information online that will aim you towards a really tasty protein shake.

Once you have defined your daily protein intake and calories, the rest is simply building your diet around these two criteria. If you’re lifting weights as a means of getting more toned while also losing fat, you might be better off with a low-calorie protein powder that will help you stay in the caloric deficit that you will need to lose weight.

DWYM Fun Fact

The protein supplement industry is bigger than even the beefiest body-builder at your local gym, selling more than $17 billion worth of protein products in 2019. Many people are buying protein products to supplement their diets.

The Whey Protein Isolate Powder Tips and Advice

  • Protein powder mixed with plain water isn’t for everyone. Don’t be afraid to mix it with things like cream or almond milk to really enhance the experience you have when drinking it.
  • Use your whey protein isolate to make protein-bombs that can be stored in the refrigerator for convenient and healthy snacking.
  • If you use a shaker-bottle to drink protein powders, clean it every time you use it. Protein residue will start stinking quite noticeably when left in a seal-off bottle for a week.
  • Don’t give up on whey protein isolates if they don’t taste good to or if they upset your stomach. Try a new brand instead. Many times there is a whey isolate protein powder that will work well for you, you just need to find it.

About The Author

Avatar
Russell Hinkle 

Russell Hinkle is a writer and engineer based in Longmont, Colorado. Raised in a family of collegiate and professional athletes, Russell Hinkle has a breadth of knowledge on health and wellness as it pertains to movement, strength and flexibility. Though he loves to lift weights, practice yoga, and participate in recreational sports leagues, he always pushes to keep up with the newest scientific studies related to wellness. He believes that wellness is a happy marriage of the physical, mental and spiritual well being that you are experiencing as a person.