All Natural Isolate™ 100% Grass Fed non-GMO, rGHb Free

78 reviews
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MTS Nutrition All Natural Isolate - 100% Grass Fed Whey

“You wanted the very best whey protein isolate ever, we delivered! Natural flavors, natural sweeteners, and 100% (not just a grass blade here and there) Grass Fed, non-GMO, rGHb Free Grass Fed Whey.

This isn’t just Whey Isolate, this is the highest quality, best tasting whey protein ever created.

-Marc Lobliner, CEO of MTS Nutrition


Have you purchased “Grass-Fed Whey”? You’ve probably been lied to!

There’s a good chance the tub of grass-fed protein you’ve got sitting on the shelf isn’t all it's cracked up to be. See, the vast majority of proteins claiming to be grass-fed are most certainly grass-finished.

So what's the difference?

Well, grass-fed cows must consume only grass, while grass-finished cows only eat a few blades of grass towards the end of their life. Dishonest companies market these grass-finished products as grass-fed, and the public is none the wiser. They get richer, while you’re left with a substandard protein powder.

For this reason, and many others, MTS Nutrition All Natural Isolate uses ONLY whey protein from Grass Fed cows. That’s right, these cows have only consumed 100% grass, no exceptions. Each serving of MTS Nutrition All Natural Isolate is non-GMO and rbGH free Whey Protein Isolate, delivering 25g of 90% pure whey protein isolate (WPI), the highest grade of whey protein ever conceived.

To further up the ante, MTS Nutrition has included only natural flavors and natural sweeteners to deliver a superior protein both in taste and quality. You’ll still get the same phenomenal flavoring that MTS Nutrition is known for along with the muscle-building benefits attributed to whey protein supplementation.

These cows are NOT exclusively grass-fed. This negates many of the benefits associated with drinking whey from grass-fed cows.


MTS Nutrition created a perfect, ALL-NATURAL, grass-fed whey. Natural flavors, natural sweeteners, and 100% (not just the occasional blade of grass) grass-fed, non-GMO, rGHb-free, grass-fed whey.

Now let’s talk flavor. Even the fake grass-fed whey tastes awful! MTS Nutrition is known for having the best flavors in the industry, and this product is no exception. MTS Nutrition ISOLATE will have you craving more and more. It is delicious!

Do what’s right for your health, and your results. Try MTS Nutrition Grass-Fed, All-Natural Whey ISOLATE today!


Grass Fed rGHb Free and Non-GMO All Natural Whey Protein Isolate is the most pure form of whey protein you can possibly use. Whey protein isolate yields 90%+ protein, does NOT contain lactose and is perfect for those with digestive issues caused by dairy but still want the benefits of Whey Protein. Whey protein is known for having an extremely high biological value and is fast acting for use around the most strenuous workouts and is perfect for those looking for a protein supplement with controlled carbohydrate and fat. MTS Nutrition Grass Fed All Natural Whey Protein Isolate, you get all of these benefits with ZERO artificial colors or flavors!

MTS Nutrition Grass Fed All Natural Whey Protein Isolate boasts of:

  • Amazingly delicious and rich flavor
  • rGHb Free and Non-GMO
  • High Amounts of Naturally-Occurring L-Glutamine and BCAAs to help build lean muscle
  • Fast-Acting and Hard-Hitting Pre and Post Workout Protein
  • No Sugar Added
  • All Natural Ingredients

MTS Nutrition Grass Fed All Natural Whey Protein Isolate is perfect for use around training and is also a great protein source for your meals. Imagine replacing that bland chicken breast with a delicious milkshake—This is the protein for you!

1. Cribb PJ, Williams AD, Carey MF, Hayes A. The effect of whey isolate and resistance training on strength, body composition, and plasma glutamine. Int J Sport Nutr Exerc Metab. 2006;16(5):494-509.

Customer Reviews
4.7 Based on 78 Reviews
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Joe P.
United States United States

I use it for recovery. Mix it with milk, yogurt, peanut butter and a banana. Tastes great.

Casey L.
United States United States
Absolute Gold!

I’ve been a user of MTS products since the beginning and have tried damn near every flavor that any company has had on the market. MTS has always had the purest, richest flavors of ANY protein I have supplemented. I have always been weary of vanilla. It always tasted synthetic and chalky to me no matter the brand and usually I couldn’t keep it down. I hadn’t ***** vanilla protein in close to 8 years, until of course I bought this. Unbelievable! Not only does it have a cleaner digestive process but it has restored my view of vanilla flavored protein. I’ll be buying several more soon. I recommend not only this product but MTSs whole hearted approach to supplements and being the best you to anyone.

Mike T.
United States United States
Grass Fed Protein

All my experiences with Tiger fitness over the few years have been great. Shipping is fast and customer service has been awesome. I saw this protein while going through the MTS line and could not believe it. What a clean list of ingredients. Don’t get me wrong all the other Machine whey flavors are great as well, but this was cool bc I switched over to grass fed milk a while back. It comes on vanilla and chocolate. Great flavor with no aftertaste and mixes very well. Will definitely be a staple purchase. Thanks

Shanay S.
No scoop!!!

It taste okay, mixes well... but my only real complaint and frustration with this product is the fact that there was NO scoop in my tub!!!! I had to dig all the way through the container only to discover there was never a scoop In the container. That ******!!!

Tiger Fitness

Let the Customer Service team know next time and we'd be happy to send you one!

Tyler W.
All Nat Isolate

The protein powder is certainly of high quality, no surprise there as Mark seems to only source high quality active ingredients. I however don't seem to tolerate this very well with my gut, not sure if it's the stevia or if the whey isolate doesn't agree with me any more. Most people should be fine with their guts, so I'd give it a go. Flavor tastes fine for me nothing too over the top which I think is a good thing.

Nutrition Info

Warning Concerning California Residents: This product may contain chemicals known to the State of California to cause cancer and birth defects or reproductive harm.