Grass-Fed Beef Protein Isolate (1lb.)
14 servings $1.47/Serving
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Product Details
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True Nutrition's Grass-Fed Beef Protein Isolate is fat-free with 0g of sugar. This makes it a perfect protein for Paleo enthusiasts and offers athletes a protein-packed alternative to help support muscle building.
Ingredients: Beef Protein Isolate.
Amino Acid Profile (Per 100g)Amino Acid Amount Alanine 9.0g Arginine 7.6g Aspartic Acid 6.2g Cystine 0.1g Glutamic Acid 11.1g Glycine 21.0g Histidine 1.1g Isoleucine 1.7g Leucine 3.9g Lysine 3.9g Methionine 0.09g Phenylalanine 2.4g Proline 11.5g Serine 3.3g Threonine 2.2g Tryptophan 0.2g Tyrosine 1.0g Valine 2.8g -
A low score is not a strike against a product
It means researchers haven't studied that pairing yet. Whey isolate scores low for joint health because almost no one has tested it there, not because it works against your joints. A score reflects the state of the research — not product quality, purity, or nutrition content. Most pairings sit low for the same reason: research funding has concentrated on a handful of well-studied questions, and everything else is simply unexamined.
What the number means
Each score estimates how strong the published human research is between one product and one goal. We weigh study design first (meta-analyses and randomized controlled trials count for more than mechanistic or animal data), then sample size, consistency across studies, and how recent the work is. The score says nothing about quality, safety, purity, or nutrition content.
9–10 Extensively studied: Multiple meta-analyses or systematic reviews of RCTs, pointing the same direction.
7–8 Well studied: Multiple RCTs on this product, or on its immediate class, for this outcome.
4–6 Some research: Human trials exist but are small, short, mixed, or run on a closely related substance.
2–3 Early research only: Mostly mechanistic, animal, or lab evidence. Plausible, not yet established in people.
1 Not yet studied: No meaningful research connects this product to this goal.
Why some goals aren't scored for some product types
Not every goal is a question you can meaningfully ask of every product. Carb powders have nothing to say about hormone support, and a fruit powder has nothing to say about muscle growth. Asking anyway would produce a column of 1s that reads like a verdict rather than an absence. Each product is scored only against the goals its research literature actually addresses. In the grid, those cells are marked as not scored rather than given a number.
What "pending review" means
Some products have been identified and their reasoning written, but the literature review isn't complete. Those carry no citations yet and we don't claim an evidence tier for them — the number shown is a working placeholder, not a finding.
How blends are scored
Some products are single substances and some are blends of several. When a product is a blend, we score the product as a whole and name the component the evidence actually comes from — so a greens blend's gut score is attributed to the greens in it, and a pre-workout's energy score to the caffeine and beta-alanine in it. The research was run on those components, not on our particular formula, and saying so is the difference between a citation and a claim.
Why some products share a score
Products built on the same underlying substance share a score, because that substance is what the studies actually tested. Trials run on standard whey isolate or a specific collagen peptide, not on a branded product. Where a variant has a documented functional difference, such as hydrolysis speeding digestion, we note it in that product's reasoning instead of inventing a separate score.
What "what the research studied" means
That column names the exact form used in the underlying studies: whey protein isolate, hydrolyzed collagen peptides, pea protein isolate. We include it so nothing here reads as a claim that our specific products have been clinically tested. The studies are on the substance. Our products are built from that substance.
About the study links
Where a score links out, that link points to a real, published human study (PubMed, PMC, or the journal's own page) that fed into that score — not a single citation "proving" the claim, but one of the studies actually reviewed. Not every score has a linkable study behind it: many reflect a body of general nutrition research (protein intake and satiety, for example) rather than one paper, and some reflect the informed absence of any research at all. In both of those cases we don't force a link.
Limits
This is a directional guide built from peer-reviewed, PubMed-indexed literature and published meta-analyses. It is not medical advice, and scores will move as new research publishes. We review it periodically rather than treating it as settled.
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Clean, Honest Ingredients
- BSBrittnie S.Verified BuyerRated 5 out of 5 starsYesterdayGreat product
Love the clean ingredients and amount of protein. And at a great price. I always got the unflavoured to mix in my coffee, look forward to it every morning.
- LCLaura C.Verified BuyerRated 5 out of 5 stars3 days agoExcellent Product
I bought three flavors to try, two of which are fantastic (French Vanilla and the Chocolate). Not a fan of the Peanut Butter Chocolate tho.
The key is putting the protein powder into a wide mouth jar, pouring warm or boiling water on it, using an immersion blender to mix, then adding whatever milk you want. I also add ice cubes to cool it off faster. But this is seriously a great product with minimal clumping when using hot water and a blender. We love the chocolate and vanilla flavors! Quality is excellent!
- MEMelanie E.Verified BuyerRated 4 out of 5 stars6 days agoProtein
Love this flavor, my only complaint is it foams a bit.
TNTrue Nutrition29 minutes agoHi Melanie,
Thank you for sharing your feedback! We're so glad to hear you're loving the flavor of our Grass-Fed Beef Protein Isolate.
We completely understand your concern about the foaming. Beef protein isolate is naturally hydrophobic, which can sometimes result in foam during mixing. Some customers find that using a shaker bottle with a whisk ball or adjusting the amount of liquid helps reduce this. We appreciate you taking the time to share your experience, and we'll pass your feedback along to our product team as we continue to refine our offerings.
Thanks for your support!
Best regards,
True Nutrition Customer Service - JKJordan K.Verified BuyerRated 4 out of 5 stars1 week agoOver good
Over all its good. 4stars only due to mix ability in shaker . Better results with blender
TNTrue Nutrition29 minutes agoHi Jordan,
Thanks so much for the feedback! We're glad you're enjoying the Grass-Fed Beef Protein Isolate overall!! We appreciate you letting us know about your experience with mixing, good to know that a blender works better for you than a shaker. Thanks for supporting True Nutrition!😊
- AAshleyRated 5 out of 5 stars1 week ago5 Stars
The cookie butter flavor is so yummy! It is very sweet so I mixed in my coffee with milk and needed no creamer. Mixed well with my coffee, no chalky-ness.