A naturally sweetened whey isolate from Truly Grass Fed-certified Irish milk, with Labdoor certification and batch lab reports linked online.
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Last reviewed September 29, 2026 by the Nutrition Reviews Editorial Team · How we review
Our verdict
Legion Whey+ is one of the most credible naturally sweetened whey isolates, pairing certified grass-fed sourcing with public lab testing. You get slightly less protein per scoop than some rivals and pay a premium, but for buyers avoiding artificial sweeteners who want proof of what is in the bag, it is an easy recommendation.
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Our five-factor score out of 10. Factors are weighted by how much they matter to the outcome you’re paying for. Methodology
out of 10
Key ingredients at clinically studied doses, and how strong the evidence is.
Third-party testing and certifications, manufacturing standards, contaminant testing, recall history.
Cost per effective serving compared with category peers.
Taste, mixability, texture and tolerability from aggregated buyer and creator feedback.
Full label disclosure (no proprietary blends), available COAs, honest marketing.
Legion Whey+ is built for shoppers who care about sourcing and sweeteners as much as macros. It uses whey protein isolate from Irish milk certified under the Truly Grass Fed program, which the brand highlights because grass-fed dairy claims have no legal definition in the US. Flavored versions rely on stevia and other natural sweeteners rather than sucralose or acesulfame potassium, and there are no artificial dyes.
A serving provides 21 to 23 g of protein and 100 to 130 calories depending on flavor, with no added sugar; Dutch Chocolate is listed at 23 g of protein and 100 calories. That is a few grams less per scoop than Dymatize ISO100 or Transparent Labs, but still within the range research associates with a meaningful muscle protein synthesis response. The brand lists 5.6 g of BCAAs per serving.
Transparency is a strength. Legion says each batch is analyzed by an ISO 17025-accredited lab, current certificates of analysis are linked on the product page, and the product is certified by Labdoor. NSF's dietary supplement listings also show the Dutch Chocolate and French Vanilla flavors as certified to NSF/ANSI 173 for label accuracy and contaminants, though the product is not in the NSF Certified for Sport or Informed Choice programs.
On Amazon the Chocolate bag averages 4.3 stars; buyers praise the taste, smooth mixing in water and easy digestion, while price is the most common complaint. It costs about $2.06 per serving at typical retail prices, and the brand's $69.99 list price for 30 servings was discounted to $48.99 when we checked. On TikTok Shop, the official listing has sold more than 7,600 units.
| Key ingredient | Per serving | Why it matters |
|---|---|---|
| Truly Grass Fed whey protein isolate Irish whey isolate from a certified grass-fed program; the brand lists 5.6 g BCAAs per serving. | 21-23 g protein (varies by flavor) | Irish whey isolate from a certified grass-fed program; the brand lists 5.6 g BCAAs per serving. |
| Stevia leaf extract Natural non-nutritive sweetener; some flavors also use allulose or monk fruit, per the brand. | — | Natural non-nutritive sweetener; some flavors also use allulose or monk fruit, per the brand. |
Flavors & variants
Testing & quality
States that products are tested in ISO 17025-accredited labs and links certificates of analysis; Whey+ is certified by Labdoor, and two Whey+ flavors are listed as NSF/ANSI 173 contents-certified.
Goals it supports
Independent creators reviewing Whey+ Grass-Fed Whey Protein Isolate on TikTok and YouTube.
What we like
Watch-outs
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