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Muscle Feast Grass Fed Whey Isolate









  • Low cholesterol and carbs
  • Low saturated fat and sugar
  • Clean label
  • Generally acceptable taste


  • Low protein per serving
  • Premium price

Muscle Feast Grass-Fed Whey Isolate FAQ

  • One container: 37 servings
  • Price: $33.99
  • Serving size: 21.5 g
  • Serving Suggestion: 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.
  • Refund Policy: They have a 30-day return policy in place. Receiving back product that may be defective within 30 days of purchase date helps them to identify an issue and resolve it faster. If a customer wishes to return a product for any reason that is not due to Muscle Feast error, the customer will need to pay return shipping costs, which is deducted from their refund total. However, refunds will not be processed until Muscle Feast has received the returned item.

When it comes to supplements, everybody hates fillers. Everybody. Not a single soul in the world will tell you that fillers are why they’re buying supplements.

However, they can’t be really avoided. After all, supplements, especially protein powders, pass through the mouth before it actually becomes useful.

Before that, we see what it looks like, smell it, and for others even notice the ease or difficulty in mixing. Fillers do wonders in making sure each of our senses are happy.

Well, Muscle Feast doesn’t believe in that tradition. Its Grass-Fed Whey Protein Isolate is definitely one of the cleanest whey protein supplements out there, with only Sunflower Lecithin as the other ingredient after whey protein isolate.

Is this type of formulation something consumers will love? Will it work as advertised? Read our review to find out!

Who Makes It?

Muscle Feast is behind Grass-Fed Whey Isolate. The company is based in Nashport, Ohio and sells protein powders, carb supplements, amino acids, creatine, pre-workouts and post workouts [1]. On top of their business as a supplement seller, they also have discounts for military and first responders.

Marketing Claims Made

The following claims were made about Muscle Feast Grass-Fed Whey Isolate:

  • Rich in amino acids and peptides: There’s definitely an abundance of amino acids and peptides in whey protein isolate, especially if it’s grass-fed. We actually like how they displayed the potential dosage of each amino acid on the bottle. Most companies would gloss over this minor yet supercritical detail in protein powders.
  • Maximize muscle protein synthesis: It’s a single-ingredient protein powder, so its job is to do nothing but initiate muscle building right after ingestion.
  • Deliver the purest form of proteins: Whey protein isolate is indeed purer and more potent than its concentrate counterpart, but whey protein hydrolyzate takes the concentration game on another level.

What’s in it?

Now, let’s take a closer look at what’s inside Grass-Fed Whey Isolate:

  • Whey Protein Isolate: Considered the next step in whey protein after the raw “concentrate,” whey protein isolate boasts a whopping 90% protein content per gram [2]. Compare that to whey protein concentrate which usually tops at 70%, you’re definitely getting a lot more for your money. While it’s also much more expensive, whey protein isolate is of course much better in terms of absorption and amino acid profile. Speaking of amino acid profile, we like how Muscle Feast included the plausible amino acid profile of their product on the label. So few supplement companies ever do this, so it’s a breath of fresh air to actually evaluate the protein powder’s potency without having to open a browser. We’re glad to see such a potent ingredient, but can’t help but balk at the low protein content per serving of only 21.5 grams.
  • Sunflower Lecithin: We normally don’t include other ingredients in this section, but we felt the need to note this one. Normally, companies would opt for soy lecithin aka the most commonly used lecithin in the world. Lecithin is often used in various food items that are initially liquid before taking a solid form. Its main purpose is to add flowability and better machine efficiency and yield. The problem with soy is, it’s had a bad rap in the last two decades due to the soy-scare and how it ruins hormone balance in large amounts or chronic intake. To solve that problem, and to get back more sales from health-conscious people, companies then turned to sunflower lecithin. It’s more expensive, but it’s also a much healthier option. More importantly, it doesn’t carry the same side effects of a soy-based product.

Supplement Facts Label

Muscle Feast Grass Fed Whey Isolate Supplement Facts Label


There’s really not much to Muscle Feast’s Grass-Fed Whey Protein Isolate other than the high quality protein powder. Then again, it’s also one of its main advantages in a world that’s increasingly becoming more complex with formulations.

The fact that the powder only really has one key ingredient makes it really open for customization, the one thing complex formulas don’t really have potential for.

You can use Muscle Feast Grass-Fed Whey Protein Isolate as a base for your muscle building nutrition or as part of a complex pre or post workout supplement.


It’s a single-ingredient formula, and as with any single-ingredient whey powders the side effects will only come from the whey itself. The form of whey used is high quality and pure compared to the troublesome whey protein concentrate, but sometimes even whey protein isolates mess up. They can cause bloating, indigestion, and could also have funny or really bad aftertastes.

We always recommend you speak with your doctor before taking any supplements featured on this site.

How to Take It

Muscle Feast recommends mixing one serving of this powder into at least four ounces of water or any beverage of your choice. They advise against complicated drinks and suggest simple milk or milk substitutes for a better taste and experience.


Currently, Grass-Fed Whey Protein Isolate has four flavors:

  • Unflavored
  • Chocolate
  • Vanilla
  • Pumpkin Spice

Number of Servings

One container has 37 servings. This should translate to 37 days unless you double up or use it more frequently. This also makes it ideal for users who have problems with shipments or take a while before the bank refreshes their credit card for monthly purchases and subscriptions.

Top Alternative to This Product

Muscle Feast Grass-Fed Whey Protein Isolate vs Legion Whey+

The best product to match Muscle Feast Grass-Fed Whey Protein Isolate is Legion’s Whey+ because they have the same formula type: A single-ingredient whey protein powder with an extra accessory ingredient that doesn’t directly influence protein efficiency.

  • Muscle Feast’s protein powder has whey protein isolate and sunflower lecithin.
  • Legion’s protein powder has whey protein isolate and maltodextrin.
  • Both offer a low protein content per serving.
  • Both offer unflavored options, which is rare in this type of industry given the poor taste of pure whey protein powder.
  • Both have Grass-Fed protein sources, but Legion prides itself on sourcing from Irish farms. However, this also makes Legion priced at a higher premium than most of its contemporaries.

Nationality of cows aside, we think the difference maker for the consumer would be the price and value of the overall product.

Legion Whey+ definitely has a reputable name and loyal following, but users might be more comfortable buying Muscle Feast’s product for its number of servings and lower price point.

It also doesn’t help Legion’s case that they didn’t disclose their hypothetical amino acid profile – something Muscle Feast did.

It’s a battle between value and premium, but we think Muscle Feast will sell more.

Customer Feedback

The general consensus on Amazon and most online review sites score it a 4/5.

Its fans like the idea of sourcing from Grass-Fed cows, lack of fillers, and the whey protein quality. Users pleasantly noted the lack of artificial sweeteners, low fat and carb content, and the unflavored option.

Critics hit the lack of size variety which often leads them to see it as an expensive line if you opt for the 2 lb cans. Some also didn’t like its taste and watery texture as well as comments on it not being filling.

Bottom Line

Muscle Feast Grass-Fed Whey Protein Isolate may look too simple on the outside, but any veteran in this industry would prefer it.

There’s much potential for customization, you don’t have to worry about the other stuff you’re drinking, and you know exactly where the protein comes from. There’s also a low risk of incurring side effects due to the single-ingredient nature of the product.

The only drawbacks it has are the price, the poor physical qualities of the mixture, and low protein content per serving.

However, if you’re looking for a good value type of protein powder – or at the very least a powder that can last longer than most – Muscle Feast Grass-Fed Whey Protein Isolate is for you.

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