NutraBio Grass-Fed Whey Isolate Starts the NutraBio Natural Series

NutraBio Naturals Grass-Fed Whey Isolate

NutraBio Naturals is a brand new series of all-natural products for the hollistic fitness buffs headlined by Grass-Fed Whey Isolate.

You know the team over at NutraBio led by Mark Glazier is always up to something. It’s never too long before we see a new product or revamped formula hitting the news wire. Well, the most trusted supplement company in the world is back at it again with the debut of their new NutraBio Naturals series of products.

The first product released as part of this new all-natural supplement series is a 100% Grass-Fed Whey Isolate powder that all about high quality protein and nothing else. There’s no fillers, dyes, excipients, artificial colors, hormones, artificial flavors, or anything else of the sort!

If you’re the kind who’s tired of meat, protein, and other dairy products that have been peppered with growth hormones, or you’re simply a supporter of ethical treatment of cows, this one’s worth a look.

We’ve got all the details on NutraBio’s newest protein powder down below, but first, take a moment to check the best deal and sign up for alerts from PricePlow:

NutraBio Grass-Fed Whey Protein Isolate – Deals and Price Drop Alerts

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Grass-Fed Whey Isolate Ingredients

True to form, NutraBio has a fully-disclosed label that gives you all the pertinent info including how much sweetener, flavoring, and thickener is in there!

  • Grass-Fed Whey Protein Isolate (28.74g yielding 25g protein)

    NutraBio Naturals Grass-Fed Whey Isolate Ingredients

    NutraBio uses only the finest grass-fed whey protein isolate in the new Natural series for superior quality.

    Each serving of NutraBio Naturals Grass-Fed Whey Isolate provides 25 grams of 90% pure, clean protein sourced from dairy cows that have a 100% grass-fed diet. NutraBio uses cold processed cross-flow micro- and ultra-filtered, non-denatured whey protein isolate which provides a full balance of bioactive whey protein fractions.

    Whey protein isolate is incredibly bioavailable with a protein digestibility rating of 95, protein efficiency ratio of 3.6, net protein utilization of 92, biological value of 159 and a perfect 1.0 PDCAAS (Protein Digestibility Corrected Amino Acid Score)![1]

    Does Grass-Fed matter?

    The upside to consuming Grass-Fed beef is the better fatty acid content / ratio over standard beef. However, when using isolates, all of the fat is stripped out, so it makes us wonder if grass-fed isolate really has many health benefits over standard whey isolates?

    There are two ways we see it – first off, less growth hormones inside, which many don’t want to touch. And second, grass-fed cows are simply treated better, so there is an ethical angle to this that many don’t think of. Cows aren’t meant to eat corn and other cheap grains – they’re grass-eaters – and happier and healthier that way too!

    Regardless of the fatty acid profile, a growing niche of the market is savvy to the natural movement and don’t subscribe to using products derived from standard dairy cows who are “tortured” in a manner of speaking, and NutraBio Naturals fits this crowd 100%.

  • Natural Sweeteners

    NutraBio Naturals Grass-Fed Whey Isolate Cow

    Each serving provides 25g of the purest, cleanest, naturally flavored protein around. There’s no fillers, additives, hormones, lactose, or gluten in here!

    Keeping in line with the high-quality, holistic approach of the Naturals series, NutraBio has included only natural sweeteners in their new powder. Each serving provides 170mg monk fruit extract along with 125mg stevia extract.

    Natural sweeteners are notorious for lending a bit of a “unique” flavor to protein powders, it’ll be interesting to see how NutraBio handles dealing with these natural sweeteners. Stevia extracts have been improving every year, but the bittersweet taste still has a bit of bitterness that the scientists and flavorists are working to strip out. We’ll see how NutraBio’s expert flavorist and ingredient sourcers tackled the job!

  • The rest

    There’s not much else to NutraBio’s new protein other than 450mg of natural flavoring and 350mg of xanthan gum to help thicken the powder up a bit when mixed so it’s not too thin. This makes it more palatable and enjoyable for you the consumer.

NutraBio Lot Number

Simply enter your lot number on NutraBio’s website, and you’ll be able to view your own products batch lab test.


Each serving of the new NutraBio Natural Series Grass-Fed Whey weighs in at 29.83g and contains the following nutrition:

  • Calories: 110
  • Protein: 25g
  • Carbs: 1g
  • Fat: 0g

Flavors Available

NutraBio has three flavors of the newly launched Naturals series Grass-Fed Whey. So far, the flavors currently available are: Chocolate, Vanilla, and Horchata.

Hopefully, if the line catches on with the public, NutraBio will expand the flavor lineup similar to what they’ve done with the award-winning NutraBio 100% Whey Protein Isolate, which has been 3rd-party certified to be true to label and free of amino acid spiking or any other such label deception.

3rd Party Lab Tests Available!

On the note of lab tests, NutraBio now offers third-party lab tests for every batch of protein manufactured during or after 2017! You can read more about NutraBio’s Lab Test situation, or simply click on our links to their website in the price comparison widgets on this page, go to the “Test Results” tab, click on “Check My Lot Number”, and have at it!


NutraBio has yet again delivered a superior quality protein that’s not easily matched by any others when it comes to quality and transparency.

NutraBio Naturals Grass-Fed Whey Isolate Facts

NutraBio’s latest Natural Series release brings all the top-level quality and taste that you’ve come to know and love about the brand.

Grass-Fed Whey is not for all of our cost-crunching users here on PricePlow, but if you’re looking to remove as much artificial-laden, hormone-infested, misery-inducing food from your life as possible, and you have the money to do so, then this is a logical product to try.

Now that NutraBio’s new Naturals Series is off and running, what’s up next? A Naturals PRE or Intra Blast perhaps?

We’ll just have to wait and see!

NutraBio Grass-Fed Whey Protein Isolate – Deals and Price Drop Alerts

Get Price Alerts

No spam, no scams.

Disclosure: PricePlow relies on pricing from stores with which we have a business relationship. We work hard to keep pricing current, but you may find a better offer.

Posts are sponsored in part by the retailers and/or brands listed on this page.

NutraBio Naturals Grass-Fed Whey Isolate Label

About the Author: Mike Roberto

Mike Roberto

Mike Roberto is a research scientist and water sports athlete who founded PricePlow. He is an n=1 diet experimenter with extensive experience in supplementation and dietary modification, whose personal expertise stems from several experiments done on himself while sharing lab tests.

Mike's goal is to bridge the gap between nutritional research scientists and non-academics who seek to better their health in a system that has catastrophically failed the public.

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  1. Rutherfurd SM, Fanning AC, Miller BJ, Moughan PJ. Protein digestibility-corrected amino acid scores and digestible indispensable amino acid scores differentially describe protein quality in growing male rats. J Nutr. 2015;145(2):372-379. doi:10.3945/jn.114.195438.

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