100% Whey Protein Isolate

100% Whey Protein Isolate

100% Whey Protein Isolate For Supporting Muscle Growth*
25 Grams Of Protein Per Serving
9.0 out of 10  (9 Reviews)
1 Size
2 Lbs.
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Chocolate Peanut Butter
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Product Overview


  • Fast acting to support repair & recovery
  • Over 5g BCAAs per serving
  • NON-GMO & No fillers or excipients.
  • No soy, lactose, gluten, or hormones
  • No proprietary blends & full label disclosure










NutraBio Whey Protein Isolate is guaranteed to be the absolute cleanest protein available. Each serving contains 25 grams of complete protein derived solely from 100% Whey Protein Isolate. It is fat-free with less than 1 gram of carbs making it the perfect choice for low-carb dieters or athletes who want to get ripped while packing on muscle. Our Whey Protein isolate contains no whey concentrate, added carbs, creamers or any other filler, just pure cross-flow ultra-filtered, non-denatured whey. It has a high biological value with an advanced full-spectrum amino acid profile that provides optimum nitrogen retention and protein synthesis to accelerate muscle growth and repair.


Whey Protein is well known as the most powerful source of protein for building muscle. However, there are different types of whey; the most common are Whey Protein Isolate and Whey Protein Concentrate. Whey Protein Isolate is 90% protein by weight and is the purest form of whey that exists, which is why it’s the only protein we use in this product. Whey Protein Concentrate is a cheaper grade with 11% less protein than whey isolate and a lot more fat, cholesterol and lactose. NutraBio’s Whey Protein Isolate contains only Whey Protein Isolate with absolutely NO whey concentrate or other proteins.

Founded in 1996, NutraBio is the original No Proprietary Blend, No B.S. honest brand. 15 years ago we revolutionized the supplement industry by introducing 4 quality commitments:

1. NO proprietary blends and full label disclosure

2. NO fillers, excipients, or additives (except flavor)

3. Full therapeutic dosages of every active ingredient

4. Manufacturing our own products to control every aspect of quality.

Two decades ago we set the goal of providing our customers with the most effective, clean and honest supplements available. Since that very first day, we have led the charge in supplement innovation with science-backed therapeutic doses and full label disclosure.

We manufacture our products in our FDA registered and audited facility. We are GMP certified and manufacture to exceed 21 CFP Part 111 cGMP regulations. We don't compromise on quality so you don't have to compromise on results.

PLEASE NOTE: View the supplement facts panel tab for a current version of the ingredients.

100% Whey Protein Isolate with Absolutely Nothing Else.

NutraBio Whey Protein Isolate contains 100% Whey Protein Isolate only! There is No whey concentrate or other proteins, maltodextrin, dextrose, creamer or any other filler in this product. It is lactose free, fat free, cholesterol free, gluten free, BSE/TSE free, filler free, excipient free, non-denatured and kosher. These days, the market is flooded with protein brands and to compete companies use confusing labels and deceptive claims to hide cheap ingredients in their products. It’s almost impossible for the consumer to figure out what they are really getting. We make it simple by providing full label disclosure. We never hide cheap ingredients in deceptive proprietary blends. Our labels are simple, honest and disclose every single ingredient along with the exact dosage. Our label doesn't state "100% Whey", it states "100% Whey Isolate" so our unflavored version contains absolutely nothing but whey protein ISOLATE, and out flavored versions contain a small amount of flavoring, that’s it.

To Make the Best Protein You Must Start With The Best Ingredients:

Our factory fresh whey protein isolate (WPI) contains 25 grams of pure protein per scoop and is lactose free, fat free and cholesterol free with less than 1 gram of carbs making it the perfect choice for low-carb dieters or athletes who want to get ripped while packing on muscle. Our WPI is 100% pure, non-denatured, non-acid treated whey isolate with absolutely no whey concentrate, ion exchange, or other cheaper forms of protein blended in. Whey protein isolate has the best overall amino acid profile, biological value and protein efficiency for building muscle. Adding anything else to it just takes away the benefits you should be getting from your hard work, so we don't. No games, no tricks just the purest, freshest whey isolate available.

High Biological Value & Protein Efficiency:

You've just chosen the world's leading muscle building protein designed specifically for individuals needing the highest quality protein. This protein has a Biological Value of 159, Protein Digestibility of 95, Protein Efficiency Ratio of 3.6, Net Protein Utilization of 92, and a perfect 1.0 PDCAAS (Protein Digestibility Corrected Amino Acid Score).

Advanced Complete-Spectrum Amino Acid Profile:

Rich in Branched Chain Amino Acids. Provides the perfect profile of Essential, Non-Essential, and Conditionally Essential amino acids that your body requires for optimum nitrogen retention, protein synthesis and muscle growth.

High in Glycomacropeptides:

Contains approximately 18% GMP (glycomacropeptides), while ion-exchange whey isolate contains none.

Ratings & Reviews

Overall Rating
9 Ratings
Verified Buyer Rating
3 Ratings
Average Flavor Rating
5 Flavors
Top Rated Flavor
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  • 10 Vanilla

This is the best protein powder I've come across. I've been using protein supplements for over 4 years and this one is exceptional in terms of taste and dissolvability . I mix it with skim milk and it makes a thick tasty shake.I would highly recommend this product.

Verified Buyer
  • 10 Vanilla
  • 10 Dutch Chocolate

This is the best protein I have ever came across in all my years of bodybuilding and I will never try another protein again. It's helped me win competition after competition. Nutrabio has the cleanest and most pure protein on the market and is extremely undermarketed. I recommend this protein to anyone who asks me what I take.

Verified Buyer
  • 10 Vanilla

The best products I have used to date. The protein mixes very well and tastes great. Love the full label disclosure. One of the only brands I trust. Highly recommend.

Verified Buyer
  • 1 Dutch Chocolate

Absolutlely the worst tasting protein I have ever tried!! The worst after taste and smell!!

  • 10 Vanilla

This product is a perfect example of NutraBio doing what NutraBio does best - producing a pure, clean product that is effective and absolutely delicious. First and foremost I care about what I put in my body and the results I'll get. Taste comes next. I can happily say that this is a FULLY disclosed label (even tells you how much flavoring is in the product) so you know EVERYTHING that is in the product and the EXACT amount/dosing - just like with all their other products. As for results, it's exactly what you'd expect with a 100% whey protein isolate. It gives you the purest protein that is readily available for the body to use and aid in the muscle building process. Lastly, the flavor is so, so good - especially for an isolate (it has less fat and carbs than a concentrate so you wouldn't expect it to taste as good as it does). To date, I have had the unflavored, vanilla, and orange cream. Unflavored is exactly what you would expect - unflavored LOL. And the vanilla and orange cream are better than most concentrates and some weight gainers I had. There is a reason this protein has own the protein wars two years in a row - it's an outstanding all-around product! I'm so happy it's available on BB.com now. Definitely give this one a try.

What's in NutraBio 100% Whey Protein Isolate

2 Lbs. Chocolate Peanut Butter
Serving Size: 1 scoop/4.75tbs. (30.86 grams)
Servings Per Container:30.47
Amount Per Serving % Daily Value
Calories 110       
Total Fat 3 g 1%*
Cholesterol 5 mg <1%*
Total Carbohydrate 2 g <1%*
Dietary Fiber 1 g 3%*
Protein 25 g 50%*
Calcium 140 mg 14%*
Phosphorus 64 mg 6%*
Magnesium 22 mg 5%*
Sodium 116 mg 5%*
Potassium 161 mg 5%*
Whey Protein Isolate (non-denatured) 28.74g
(28.74 grams WPI yielding 25 grams of complete protein), (CFM cross flow micro and ultra-filtered. Cold processed. Instantized with sunflower lecithin.)
Flavoring 2.12g
(natural flavor 750 mg, natural cocoa 750 mg, xanthan gum 350 mg, salt 110 mg, annatto powder 80 mg, sucralose 80 mg)
* Percent Daily Values are based on a 2000 calorie diet
† Daily Value not established
Allergens: Milk.

Directions For 100% Whey Protein Isolate: Add 1 scoop with 6 ounces of cold water or your favorite beverage to a shaker cup or blender and mix for 25-30 seconds. Vary the amount of liquid to meet your desired taste and consistency. Drink 1-3 servings daily as needed to satisfy your protein requirements. Using nonfat milk instead of water will give your a thicker, creamier shake.

Warnings: This product is intended as a dietary supplement only. Do not use as a sole source of nutrition.

* 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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