100% Whey Protein Isolate

$ 59.95 $ 64.95
$ 59.95 $ 64.95you save $ 5.00

Fluid is beyond excited to share our latest creation with you! 100% Whey Protein Isolate. With only 3 ingredients, each serving packs 20g of fast digesting protein exclusively from grass-fed whey. Formulated for easy mixing, this subtly-sweet vanilla has the amino acids you need and a taste you’ll actually enjoy. Did we mention it’s also tested for banned substances (3x!) and Certified Informed Sport? Booyah! Let’s goooo.

  • Available in 2lb bags, 40 servings per container.
  • 20g grass-fed whey protein isolate per serving.
  • Informed Sport certified and tested for 280+ banned substances. (Certificate of Analysis available here.)
  • Delicious vanilla flavor, naturally sweetened with stevia.
  • Micro filtered using low pressure and temperature.
  • Free from gluten, soy, & egg.


1) Why did Fluid decide to make a whey protein?

We made this product to be of service to customers we care about and the athletes they serve. We are a customer driven organization, and when our dietitians and strength coaches at the professional and D1 level ask for a clean, simple, whey protein, we listen. While there is no shortage of protein options, there is a void at the intersection of taste, quality, affordability, availability, customer service, and banned substance testing. We have been sourcing premium whey isolate since 2006 for use in our 3:1 recovery drink mixes. Now we are proud to make a stand-alone whey protein option.

2) Where is the whey sourced from?

Our whey protein is sourced from grass-fed cows in the UK and Wales that have not been treated with growth hormones or antibiotics. It is GMO & rBGH free.

3) How and when should I use this?

  • Use after a workout
  • Blend into your breakfast
  • Add to your bedtime routine

  • Directions: Add one scoop per 6-8 fl oz. Shake or blend in water or your preferred milk. Try it in smoothies with your favorite fruits, add to morning oatmeal, inside pancakes or even baked goods. Enjoy!

    Nutrition Facts: (Per 1 scoop, 23g Serving): Calories 80, Total Fat 0g, (Sat Fat 0g, Trans Fat 0g), Sodium 60 mg (3% DV), Total Carb 1g (0% DV), Total Sugars 0g, (Includes 0g Added Sugars), Protein 20g (40% DV), Calcium 130mg (10%), Potassium 94mg (2%) 

    Ingredients: Grass-Fed Whey Protein Isolate, Vanilla, Stevia.

    Amino Acid Content (g): 

      20g Serving Per 100g
    Alanine 1.00 5.00
    Arginine 0.42 2.1
    Aspartic Acid 2.20 11
    Cystine 0.44 2.2
    Glutamic Acid 3.62 18.1
    Glycine 0.28 1.4
    Histidine 0.34 1.7
    Isoleucine 1.28 6.4
    Leucine 2.12 10.6
    Lysine 1.92 9.6
    Methionine 0.42 2.1
    Phenylalanine 0.60 3
    Proline 1.10 5.5
    Serine 0.92 4.6
    Threonine 1.34 6.7
    Tryptophan 0.28 1.4
    Tyrosine 0.52 2.6
    Valine 1.18 5.9


    Customer Reviews

    Based on 24 reviews
    Thomas Armstrong (Sierra Vista, US)
    This product works well in smoothies and I love the flavor.

    Also, the shipping department made a mistake with my order. They quickly make good on the order and include some extra swag.

    Greg Espinosa (Chino, US)
    Love this product

    The 100% Whey Protein Isolate is a great addition to help meet my protein goals for the day. Tastes great and mixes well.

    Tina Hart (Boulder, US)
    Tastes delicious!

    I really enjoy the chocolate whey! I've used it both on its own and mixed with Fluid's recovery mixes (including both the chocolate and the mixed berry). It's got no funky or chalky aftertaste, and the chocolate flavor is rich and creamy. I also feel good knowing it's third party tested. I typically don't like Stevia in my drinks, but in this case I didn't even notice it. Definitely my go-to for whey protein, and highly recommended.

    Kristen Lines (San Diego, US)
    The Best

    I'm a Sports Dietitian and found this product at a conference. It is honestly the best tasting and functional protein powder I've found!

    CBA (Lexington, US)
    Awesome Whey

    I exclusively use Fluid and was excited to see a whey isolate protein option. Post-menopausal women need more protein. Plant based is good, but whey isolate is better because PM women need the leucine for muscle synthesis. This was a win-win. I didn’t need to find a separate company for my whey! So far, so good. I start with a smoothie in the morning and on really big days, I will sometimes add a scoop in with my Fluid Recovery (to increase the protein). It’s been an up-and-down year in terms of training and dealing with a changing body, but Fluid has been there for me!