100% Grass-Fed Whey Protein Isolate: The Cleanest Protein Powder?

by Nader Qudimat
Updated February 28, 2024
Whey Protein Isolate
Serving Size
Available in the U.S. but ships worldwide
Very clean source of protein
Made from grass fed cows which has the highest quality source of vitamins and nutrients
110% transparency (discloses other ingredients)
Fast absorbing whey source
Only available at one source

Bottom Line

Discover the pinnacle of pure, muscle-building fuel with Transparent Labs' 100% Grass-Fed Whey Protein Isolate.

Sourced from the healthiest, grass-fed cows in the USA, this protein powder stands out in a crowded market for its unmatched quality and nutritional profile.

Offering a whopping 28g of protein per serving, with minimal fat and carbs, it's the cleanest, most potent protein source available to support your fitness goals.

Whether you're aiming to bulk up, slim down, or enhance recovery, this whey isolate delivers all the essential nutrients without any artificial additives.

Dive into a range of delicious flavors, all naturally sweetened, for a protein shake that tastes as good as it feels. Choose Transparent Labs for a transparent, no-compromise approach to your nutrition.

If you've been on the hunt for the ultimate protein powder, chances are, you've stumbled upon Transparent Labs.

Recommended: Transparent Labs Protein Flavors Ranked

It's like they've sprung up out of nowhere, and suddenly they're the talk of the town.

Everyone's singing their praises - from casual users to professional reviewers.

Seems a bit fishy, doesn't it?

Well, your skepticism isn't misplaced. Transparent Labs does indeed have a killer affiliate program.

But here's something that might impress you - they're exclusive. You won't find their products on Amazon,, Walmart, GNC, or even Ebay.


If you want to get your hands on their supplements, you've got to head straight to the source - Transparent Labs' own website.

The upside? You don't have to worry about getting a dodgy product.

There's no risk of contamination, expiry, or any other issues.

If there's a problem, you'll be the first to know.

So, let's get down to business.

What's this protein powder we're all excited about? It's none other than Transparent Labs Grass-Fed Isolate protein.

Now, I know what you're thinking - it sounds like something that would have the vegans jumping for joy. But trust us, if you're after the most "anabolic" source of protein, you want it to come from natural, grass-fed cows.

And guess what?

This protein comes straight from small farms right here in the good ol' USA.

ProteinSeries Grass-Fed Protein

Let’s be honest.

When you first heard “grass-fed” all you could think about is some hippies running a free-roam farm where cows can go wherever they want, and eat the healthiest and natural sources of food.

And you’re probably sitting there with a bit of skepticism, as we once were.

This is what Transparent Labs write about their grass fed protein:

“Made from naturally-fed, hormone-free cow and clean of artificial sweeteners, food dyes, gluten, and preservatives”.

So what?

It’s one of the cleanest protein in the market.

Most people don’t care much about how their food was treated before it was slaughtered for food, but there’s more to it than just having a source of clean protein.

Grass fed cows have a ton more benefits for your own health.

They not only have a higher source of omega 3 fatty acids (by 5 times!) but their protein also have a higher source of minerals and the fatty acid ratio is better when compared to grain-fed cows.

Who's It For?

By now you probably have a bit of interest in what getting some Grass-Fed protein from TL.

As with all protein powders, this is a supplement that should assist you with your diet.

There are a few reasons and benefits why you’d want to take a protein isolate like…

  • Lower calories / high protein
  • Quick source of protein
  • Convenience
  • Quicker digestion of protein (post workout recovery)
  • Milk allergies / intolerance of lactose

And to top it off, this naturally flavored whey isolate is one of the best-tasting ones.

It doesn’t matter what your fitness level is, if you’re a man or woman, this protein isolate is made for everyone.

Bodybuilders who are looking to take the natural route of diet and supplements will probably enjoy this.

The whole line up of supplements from transparent Labs, from pre workouts to bulk powders are naturally flavored and have an edge in advantage when it comes to buying their products in bulk.

ProteinSeries 100% Grass-Fed Whey Protein Isolate by Transparent Labs

Made from American Cows, Whey Protein Isolate is a fully transparent grass fed whey from Transparent Labs.

It's a whey isolate and only contains 0.5g fat and 1g carbs per serving.

  • Diverse delicious flavors
  • Low carb and low fat
  • Clean label
Ingredients: ​120 Calories, 28g Protein, 2g Carbs, 0mg Cholesterol
Discount code: FITFREK
FitFrek earns a commission if you click this link and make a purchase, at no additional cost to you.

What To Use TL Grass Fed Isolate With?

If you’ve ever made a smoothie or a protein shake, then you’d know all kinds of good stuff that goes well with protein powders.

Grass Fed Isolate is no different.

Depending on the flavor you get, you can use various recipes for shakes and smoothies that will go well with this protein powder.

What Goals Does This Support?

Since Grass Fed Isolate has no fat or carbs, it works well if you’re trying to lose weight.

It is low in calories, uses natural flavoring, and tastes amazing.

Protein powders using stevia or natural flavoring are usually ok or just bareable enough to tolerate.

However with Grass Fed Isolate, naturally flavored protein powder doesn’t taste better than this.

This also works well if you’re bulking or maintaining since it’s quite versatile and can be used with any kind of diet.

It is basically pure protein without the fats or calories.

Best Time To Use Grass Fed Isolate

Whey isolate is super fast with digestion.

Since it doesn’t have anything to slow it down, it is best used post-workout.

If you’re mixing this in a smoothie or shake, you can add in sources of fat to slow down the digestion but that would increase the calories which is something to watch out for if you’re trying to lose weight.

How Does Locally Sourced Protein Sound to You?

It’s hard finding protein powder that is made from grass fed cows, let alone from small clean farms.

Most farms in the States are using grain-fed cows and contain far more health risks that are not worth it.

This is 100% percent pure grass fed protein.

It doesn't get cleaner than this.

Transparent Labs Protein

The various choices of protein from TLabs lets you have the choice between isolate, concentrate, mass gainer and even vegan protein and collagen hydrolysate.

Isolate, concentrate and the mass gainer are all made from grass-fed cows. 

The difference between isolate and concentrate is the processing methods.

Isolate is much more filtered for protein, so you’ll get less carbs and fats while keeping protein as high as possible.

Concentrate has all of it’s protein content but it comes with carbs and fats.

If you’re a “hardgainer” then you’ll want to get something healthy with high calories, and TLabs serves that with their ProteinSeries.

While the mass gainer has the most amount of calories and macros, concentrate and isolate allow flexibility as you can make your own mass gainer.

TL 100% Grass Fed Whey Isolate Ingredients

Straight out of sustainable, American-owned farms, ProteinSeries Whey Isolate is made out of 100% grass-fed cows.

This means you’ll be getting the highest quality protein with the best possible profile of omega 3’s, fats, proteins and vitamins.

One bottle of whey isolate contains 88% protein so you’re getting 28 grams of protein per 32 gram scoop.

“Made from naturally fed, hormone-free cow whey and clean of artificial sweeteners, food dyes, gluten, and preservatives” – Transparent Labs

This stevia sweetened protein isolate is one of the cleanest choices available on the market today.


While we’ve touched on why you should choose grass-fed protein, we can not stop preaching about it.

Most farms treat cows in an inhumane manner, live in dirty and crowded conditions and are usually pumped with hormones and steroids.

Protein made from these cows are going to be unclean, possibly spiked with contaminants and have higher risks for general health in the long run.

Grass-fed cows are given the best possible living conditions, have plenty of space and are much more “natural”.

They have higher and improved fatty acid content, high CLA content (great for fat burning and vitamins.

At the end of the day, Grass-Fed cows are here to stay for the future and nothing will change that so Whey Isolate from TLabs is future-proof.


Any whey isolate should have a high amount of protein per scoop. If you’re only getting 28 grams of protein per 40 gram serving, then you’d know something is wrong.

Fortunately, Transparent Labs Whey Isolate contains one of the highest protein-by-weight ratios we’ve seen with 28 grams of protein per 32 gram serving.

Here are the marcos:

  • 120 Calories
  • 28g Protein
  • 0g Fats
  • 2g Carbs 

Other Ingredients

  • 0mg Cholesterol
  • 134mg Calcium
  • 140mg Sodium
  • 500mg-1g Natural Flavoring
  • 200mg Stevia

Noticed how the transparency continues with the non-active ingredients, in the other ingredients?

The other ingredients are never disclosed with all supplements, but Transparent Labs is the only company (besides NutraBio) that discloses every single ingredient with no exceptions for the other ingredients.

This is the level of transparency that has won this company the reputation that it has today.

We noticed they’ve decreased the cholesterol content from 5.5mg to 0, sodium went from 220mg to 90mg and they’ve increased the carb content to 1g.

This goes to show that Transparent Labs is listening to their customers feedback and improves where they needed to.

Although the 1g carb content is not what anyone wants to see, it is better than having high cholesterol and sodium content.

They’ve even improved their calcium content from 2% to 10% of daily value requirements.


Like the ingredients they’ve improved on, the flavors have gone from chocolate and vanilla to 6 different and diverse flavors.

They still have chocolate but they’ve added in 5 exotic flavors, from french vanilla to cinnamon pastry.

For a protein powder that depends on natural flavoring, this must’ve been very challenging to accomplish as most protein powders with these flavors use massive amounts of artificial flavors and sweeteners.

Here are the current flavors:

    • Cereal Splash
    • Chocolate
    • Salted Caramel
    • French Vanilla
    • Strawberry
    • Mocha
    • Cinnamon Pastry

Benefits of using Transparent Labs Grass-Fed Isolate Protein  

Muscle Growth and Recovery

The high protein content in Transparent Labs Grass Fed Whey Protein Isolate makes it an excellent supplement for supporting muscle growth and recovery.

Protein is essential for repairing and building new muscle tissue, especially after a strenuous workout.

Healthy Without the Side Effects

Transparent Labs Grass Fed Whey Protein Isolate is not just for bodybuilders and athletes.

The clean, high-quality protein it provides can support overall health and longevity, making it a great addition to any diet.

100% Grass-Fed

Transparent Labs ensures that their whey protein isolate is sourced from cows that have been 100% grass-fed and grass-finished. This not only makes for a cleaner product but also contributes to more sustainable farming practice.

High Protein Content

With one of the industry's highest protein-by-weight ratios, Transparent Labs Grass Fed Whey Protein Isolate delivers 28 grams of protein per 32-gram scoop. This makes it an excellent choice for those looking to support muscle growth and recovery.

No Artificial Additives

Transparent Labs prides itself on creating clean, healthy supplements. Their Grass Fed Whey Protein Isolate is free of artificial sweeteners, food dyes, gluten, and preservatives.


Is Transparent Labs Grass Fed Whey Protein Isolate gluten-free?

Yes, it is gluten-free.

Can I use Transparent Labs Grass Fed Whey Protein Isolate if I'm lactose intolerant?

Yes, whey protein isolate is typically safe for people with lactose intolerance because most of the lactose is removed during processing.

How many servings are in each container of Transparent Labs Grass Fed Whey Protein Isolate?

There are approximately 30 servings in each container.

Can I use Transparent Labs Grass Fed Whey Protein Isolate as a meal replacement?

While it's high in protein, it's not intended to be used as a complete meal replacement. It's best used as a supplement to a balanced diet.

Is Transparent Labs Grass Fed Whey Protein Isolate suitable for vegetarians?

Yes, it's suitable for vegetarians. However, it's not suitable for vegans as it's a dairy-based product.

Does Transparent Labs Grass Fed Whey Protein Isolate contain any artificial sweeteners?

No, it does not contain any artificial sweeteners. It's sweetened naturally.

Can I use Transparent Labs Grass Fed Whey Protein Isolate if I'm pregnant or breastfeeding?

If you're pregnant or breastfeeding, it's always best to consult with a healthcare professional before starting any new supplement.

ProteinSeries 100% Grass-Fed Whey Protein Isolate by Transparent Labs

Made from American Cows, Whey Protein Isolate is a fully transparent grass fed whey from Transparent Labs.

It's a whey isolate and only contains 0.5g fat and 1g carbs per serving.

  • Diverse delicious flavors
  • Low carb and low fat
  • Clean label
Ingredients: ​120 Calories, 28g Protein, 2g Carbs, 0mg Cholesterol
Discount code: FITFREK
FitFrek earns a commission if you click this link and make a purchase, at no additional cost to you.

U.S. Sustainable Farms Sourced Grass-Fed Protein

This type of protein is something that will stay on the market for many years to come.

With a high rating on protein source, profile and company reputation, there’s nothing negative that can be said about this supplement.

It is packed as it has 90% protein content of the cleanest possible source, grass fed cows from sustainable American farms. 

It’s safe for people on strict paleo diet, women, men, hardgainers, strength lifters…

While other protein supplements regularly have to improve on either their profile, sources, or artificial flavoring, TLabs Whey Isolate is perfect for now, the future and for anyone looking for a clean protein powder.

Use the 10% off coupon code FITFREK

by Nader Qudimat

Forged by iron and cold steel, I'm Nader, a mid-30s natural bodybuilder. Once a 100lb skinny guy, I've transformed into a 200lb muscular athlete with over 15 years of lifting experience. Today, I leverage my transformation and extensive experience to guide countless individuals on their fitness journeys.

Click here to check out my 12 year transformation: Natural 12 Year Transformation

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