Grass Fed Hormone Free Whey Protein Isolate


Muscle Feast Grass Fed & Hormone Free Whey Isolate contains 21.5g (depends on flavor) of high-quality protein per 24g serving (90% before flavoring). We source our whey protein from dairy cows that are certified to be grass fed and given zero artificial hormones (rBGH &rBST free). This product is undenatured, cold microfiltered, & ultrafiltration processed. It contains 6g of naturally occurring BCAAs per serving and has zero additives or artificial ingredients.

  • Soy Free
  • Non-GMO
  • Gluten Free
  • Certified OU Kosher
  • Supports muscle growth & recovery.
  • Maximizes muscle protein synthesis.
  • Help meet daily protein requirements.
  • Deliver the purest form of protein available.
  • Eliminates gastric distress some individuals experience from whey concentrates.
  • Provides a balanced source of essential amino acids & peptides.

Available in 4 flavor options, including a richer Chocolate flavor!

  • Unflavored
  • Chocolate
  • Vanilla
  • Strawberry Cheesecake - Limited Time Only!

*If the Chocolate flavor is too chocolaty, we suggest adding more water or milk.


Mix one serving (1 level Scoop) thoroughly into 4 or more ounces of water or beverage of your choice. We do not believe in using fillers in our protein powders; we suggest using milk or milk substitute for better taste.

Protein Profile (Percent of Total Protein):

  • Beta-Lactoglobulin - 52%
  • Alpha-Lactalbumin - 20%
  • Bovine Serum Albumin - 2.0%
  • Immunoglobulin - 4.0%
  • Lactoferrin - <1.0%
  • Lactoperoxidase - <1.0%
  • Glycomacropeptide - 20%

Does not contain any of the following:

  • Soy
  • Gluten
  • Additives
  • Added Sugars
  • Artificial Colors
  • Artificial Flavors
  • Unnecessary Fillers
  • Artificial Sweeteners



Whey Protein Isolate

What is it?

Whey Isolates are 90-98% pure protein that digests and absorbs rapidly and is, gram for gram, one of the highest quality forms of protein available. This level of purity is achieved through a cold, cross-micro and ultra-filtration process that removes the larger, less absorbent protein molecules; while also filtering out fat, lactose, and ash.

What does the research say?

Studies suggest that whey isolates can quickly increase amino acid levels in systemic circulation and stimulate robust increases in protein synthesis; arguably the most important physiological factor in existence when it comes to muscle growth, strength, and recovery.

Who is it best for?

Since whey isolates are low in carbs, lactose-free, fat-free, cholesterol free, and gluten free; it makes it the perfect choice for those watching their calories, low-carb dieters, and lactose intolerant individuals. People who want only the highest quality of proteins should stick with a whey isolate.

How quickly does it digest/absorb and raise amino acid levels?

When consumed, whey isolates elevate amino acid concentrations in the blood above baseline after ~20 minutes and peak out at ~60 minutes, followed by a gradual decline that can last up to 1.5 to 3 hours depending on the dose taken.

When is the best time to take it?

Whey isolate is best taken 30-60 minutes pre-workout and immediately post workout to maximize muscle protein synthesis.  It can also be consumed throughout the day or between meals to meet individual protein requirements.



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Customer Reviews

Based on 422 reviews
Best Protein out there

Make sure you buy this flavor before it runs out! Perfect for having in your coffee, water, pudding. Taste is amazing and can taste the cheesecake and strawberry in perfect blend and not overpowering what ever you choose to put it in. Highly recommend


Grass Fed Hormone Free Whey Protein Isolate

Great products at a great price

I have used the whey isolate (several flavors) and casein from muscle feast. This is a great very clean product for those who want to be precise about their nutrition and ensure good quality. I would definitely recommend these products for athletes (including professional) and any natural lifter who wants to ensure optimal health and results.

Absolutely the best there is

I’ve used countless protein powders over the past 25 years or so. I found Muscle Feast during their early years, and since then, I’ve never used another brand. I love the grass fed isolate in chocolate flavor. Simply the best quality product, hands down.

Great product. Great service. Highly recommend!

Clean supplement. Flavors are at the top of their respective category and a transparent label. Great customer service and delivery time as well.

Grass Fed Hormone Free Whey Protein Isolate has a rating of 4.9 stars based on 357 reviews.