Whey Protein Isolate, Pasture Raised, Grass Fed, rBST/rBGH and soy free

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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.

  • rBST/rBGH (Artificial Hormones) FREE:This product is sourced from a country that has banned the use of artificial hormones for bovines
  • VEGETARIAN: Certified to be vegetarian by the American Vegetarian Association.
  • OU-D KOSHER:Certified to meet the standards of the Orthodox Union for Kosher Dairy. 
  • GLUTEN-FREE:Certified to be Gluten-Free by the Gluten-Free Organization. 
  • NATURAL:Our whey protein powders are all natural. We do not use any fillers or artificial ingredients in our whey protein powders.
  • STEVIA SWEETENED:We do not add sugar or artificial sweeteners to our whey protein powders.
  • NO FACTORY FARMED INGREDIENTS:Muscle Feast does not support factory farming and will not use ingredients supplied by organizations practicing factory farming.

*  Grass (Forage) Fed -Grass and forage shall be the feed source consumed for the lifetime of the ruminant animal, with the exception of milk consumed prior to weaning. The diet shall be derived solely from forage consisting of grass (annual and perennial), forbs (e.g., legumes, Brassica), browse, or cereal grain crops in the vegetative {pre-grain) state. Animals cannot be fed grain or grain byproducts and must have continuous access to pasture during the growing season. Hay, haylage, baleage, silage, crop residue without grain, and other roughage sources may also be included as acceptable feed sources.

Routine mineral and vitamin supplementation may also be included in the feeding regimen. If incidental supplementation occurs due to inadvertent exposure to non-forage feedstuffs or to ensure the animal's well-being at all times during adverse environmental or physical conditions, the producer must fully document (e.g., receipts, ingredients, and tear tags) the supplementation that occurs including the amount, the frequency, and the supplements provided.

*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.

Without taking in sufficient protein, our bodies are more prone to fatigue, illness, muscle loss and tissue damage. Our bodies cannot produce the essential amino acids that we need to recover and replenish our system after a strenuous workout or an injury without taking in high quality and complete protein. Muscle Feast’s whey isolate protein powder is a high quality and complete protein source that provides the necessary building blocks the body needs to recover.

Whey Isolate filters out most non-protein macronutrients, giving you a clean and lean protein source to help you reach your nutrient needs with your physique in mind. We guarantee you will find some of thebest whey isolate protein powder right here with our wide selection of flavors. We even offer unflavored whey isolate that can be used for baking high protein foods or as an additive to anything that needs a protein boost.

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.

Most people can benefit from more high quality protein in their diet. Those who are closely monitoring their macros and actively bodybuilding may benefit greatly from consuming whey isolate protein powder.

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.

Having undergone a specialized filtration process, whey isolate protein is easily absorbed and quickly digested, especially when consumed in liquid form.

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.