100% Whey Protein Isolate Single Servings

$ 2.95 $ 3.25
$ 2.95 $ 3.25you save $ 0.30

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, and single serving packets.
  • 20g grass-fed whey protein isolate per serving.
  • Informed Sport certified and tested for 280+ banned substances. (Certificate of Analysis available here.)
  • Delicious vanilla & chocolate flavors, 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 29 reviews
    FRW (Edmond, US)
    Great flavor

    Protein mixed easily into water. Taste and texture was great!

    Caleb Guest (Healdsburg, US)

    I’m always on the lookout for a good whey protein isolate to help boost my protein consumption throughout the day and up until now I was never really sold on any product I tried. FLUID has absolutely nailed this Protein supplement! It mixes up well and has just the right amount of sweetness with no additional fluff. I highly recommend this product!

    L (Gilbert, US)
    Great product, Great company!

    Fluid has a very easy website to navigate and it's a breeze to order. Both times I ordered, the products were delivered in a timely fashion. I love the vanilla flavored protein and like how stevia is used for sweetness (I add to oatmeal). I will continue to buy it through Fluid.

    Mark Turner (Arroyo Grande, US)
    Stevia, stevia, wherefore art thou Sucrose??

    I have been using the fluid recovery drink for years after bicycle rides. I went back and looked at their website to see what they offered in terms of whey protein. I was encouraged to see that they had a flavor of chocolate and also of vanilla. I had read one review that mentioned that this product contained Stevia, which is a sugar alternative. The reviewer mentioned that the Stevia taste was mild and hardly noticeable. I found the exact opposite With the Stevia being overwhelmingly sweet
    I’m aware that anytime you can have beverage that has fever, sugar grams, that is a healthier choice. But in this case I would’ve preferred to have an option that would’ve had a true sugar nutrient rather than the Stevia.

    The flavor itself of the chocolate was similar to the chocolate that I had had with bear recovery drink so that itself was quite enjoyable.

    If you do decide to make a variation for those of us that really are purists, and like the sugar supposed to be artificial sugar, I would be willing to try it again and give my honest feedback at that time.


    Love the protein content. Good flavor.