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Three whey protein brands, as AI describes them to a buyer.

A case study in AI product recommendations.

Real AI answers collected in October 2026 from five models. Brand names and identifying details are changed, so the study describes no real brand. Source summaries are edited.

This is an excerpt from a study of three whey protein brands. All three sell on clean ingredients and protein per serving, and each looks strong on its own website. We asked five AI models the questions a buyer would ask. The models repeated some of each brand’s claims and dropped others, and those differences decided which brand they recommended. Below is what the models said about each brand.

Measured against the Narrella Standard, our client’s account was current, and accurate except on protein by weight. It was only partly present, and only partly in the client’s own words. Its lab testing claim was under-used.

The brief

Good Whey Labs, our client, sells a grass-fed whey isolate. Its team saw AI assistants recommend two rival brands to its buyers and wanted to know why. The study had to tell the team which claims to strengthen, which to qualify and which to back with published evidence on its product and comparison pages.

The three brands

The three brands are anonymized. Their names and identifying details are changed.

Good Whey Labs (GWL)
Grass-fed isolate, our client.
Energize Isolate (Energize)
Hydrolyzed isolate blend.
Solar Whey (Solar)
Unflavored concentrate.

How we ran it

We wrote the questions a buyer asks before choosing a whey protein and put each one to five AI models. For every claim an answer made about a brand, we traced the sources the model cited and set them against the brand’s own pages. A claim’s reach is the number of models that carry it. Brand names and identifying details are changed.

Answers collected October 2026.

What the market reading shows

The three brands sell on overlapping promises about ingredients, protein and sourcing, and AI does not repeat them evenly. A claim travels further when the brand’s own page states it with its condition, such as a protein figure with its serving weight, or names a single ingredient outright. Claims that need a document to make sense, like lab results or a certification, travel less even when they are the better evidence. Buyers’ reservations reach almost as many models as each brand’s best claims. Each brand ends up with a different story, and our client’s is the thinnest: none of its claims is carried by every model.

our client

Good Whey Labs

Our client’s claims reach most models but never all of them. Its protein figure, printed without the serving weight, is among its least repeated claims, and its independent metals testing travels no further than a rival’s vaguer statement. Reports of stomach discomfort reach as many models as its best claims. The memo below sets out the actions we recommended, in order.

Carried by all five models
None.
Carried by few models
  • Chocolate-flavored isolate 2 of 5 models
  • Protein per serving 2 of 5 models
Claims with a caveat on the evidence
  • Whey isolate formula 4 of 5 modelsIsolate formulation and grass-fed sourcing answer different requirements; one does not establish the other.
Reservations models repeat most

Reported stomach discomfort 4 of 5 models

Premium price 4 of 5 models

Energize Isolate

Every model carries Energize’s protein figure, which gives the serving weight beside the grams. Its hydrolyzed formula is repeated almost as widely and framed around fast absorption, though the cited sources do not show faster recovery. Its most repeated reservation comes from buyers who avoid artificial sweeteners.

Carried by all five models
  • Protein per serving 5 of 5 models
Carried by few models
None.
Claims with a caveat on the evidence
  • Protein per serving 5 of 5 modelsServing size matters: grams per scoop do not establish better absorption or recovery.
  • BCAA amounts stated 4 of 5 modelsThe serving is 32g. A BCAA amount alone does not establish a superior recovery outcome.
  • Hydrolyzed whey 4 of 5 modelsHydrolysis is a formulation distinction. The selected evidence does not establish faster recovery than the other products.
  • All 9 essential amino acids 3 of 5 modelsThe amino acid profile supports completeness; it does not establish a comparative performance advantage.
Reservations models repeat most

Artificial-ingredient exclusions 4 of 5 models

What we would advise

  1. Describe the hydrolyzed formula for what it is and drop the implied faster recovery. Models repeat the claim widely, and the sources they cite do not support the recovery benefit.

    Hydrolyzed whey 4 of 5 models

  2. Name the sweeteners on the product page and in the FAQ. Buyers who exclude artificial ingredients raise the product’s most repeated reservation.

    Artificial-ingredient exclusions 4 of 5 models

  3. Publish what the banned-substance testing covers and how often it runs. Models repeat the claim today with less detail than a rival’s lot-level reports give.

    Banned-substance tested 3 of 5 models

Solar Whey

Solar’s story is the simplest in the study, and models repeat it intact: one ingredient, from grass-fed cows. Its weak points are practical. Buyers report clumping in a shaker, and models pass on the lactose guidance without a figure. Its contents certification, the best proof it has, barely appears.

Carried by all five models
  • Grass-fed sourcing 5 of 5 models
  • One ingredient, unflavored 5 of 5 models
Carried by few models
  • Independent contents certification 2 of 5 models
Claims with a caveat on the evidence
  • Cold-processed, non-hydrolyzed 3 of 5 modelsThese processing descriptions do not establish superior immunity, absorption, or recovery.
Reservations models repeat most

Clumping in a shaker 4 of 5 models

What we would advise

  1. Put preparation guidance next to the product description: which liquid, which method and how long to mix. Clumping is the complaint models repeat most.

    Clumping in a shaker 4 of 5 models

  2. State the lactose per serving and say who the concentrate suits, so the caveat reaches buyers with a figure attached.

    Lactose suitability 3 of 5 models

  3. Move the contents certification onto the product page. It is the brand’s strongest proof, and few models mention it.

    Independent contents certification 2 of 5 models

Pitfalls the study shows

  • A bigger number can travel less.

    Our client printed the larger protein figure without the serving weight. Energize gave both, and models repeated its sentence far more often.

    • GWL · “28g protein per labeled serving.” 2 of 5 models
    • Energize · “25g protein per 32g serving.” 5 of 5 models

  • A frequent claim can be unsupported.

    Energize’s hydrolyzed formula is among the most repeated claims in the study. The sources models cite for it describe the formulation and do not show the faster recovery the claim implies.

    • Energize · Hydrolyzed whey 4 of 5 models

  • A shared attribute stops being a difference.

    Grass-fed sourcing sets our client apart from Energize. Solar makes the same claim and models carry Solar’s version further, so against Solar it is common ground.

    • GWL · Grass-fed sourcing 4 of 5 models
    • Solar · Grass-fed sourcing 5 of 5 models

  • Complaints can travel further than lab results.

    Buyers’ reports of stomach discomfort reach more models than our client’s published metals testing. A complaint fits in one sentence. A lab report has to be read and summarized before a model can repeat it.

    • GWL · Reported stomach discomfort 4 of 5 models
    • GWL · Independently verified for metals 3 of 5 models

How to read it

Start with the memo. The brief states the question and the decision it serves. Each finding comes with its evidence, the corroboration table gives our reading of the claims that matter most, and the plan ranks the work by expected effect, with the page and evidence for each item.

Below the memo, explore each claim, the models that carry it and the edited source summaries.

The communications decision

Why do AI answers favor two rival whey brands, and what should Good Whey Labs publish next?

Scope
Good Whey Labs vs Energize Isolate and Solar Whey · 5 models · October 2026
Decision
Which claims to strengthen, qualify, or back with published evidence on product and comparison pages.

Three findings for the brief

  1. F1

    GWL’s strongest evidence is under-used.

    Public lot-level metals testing is GWL’s one distinctive evidence claim, yet it appears in only 3 of 5 models, the same reach as Energize’s less specific banned-substance statement.

  2. F2

    The headline protein number is not doing its job.

    GWL’s 28g per serving reaches 2 of 5 models, against 5 of 5 for Energize’s 25g. By serving weight (34.9g vs 32g) the two are close, about 80% vs 78% protein, so leading with the bigger number invites a correction.

  3. F3

    Grass-fed wins one comparison and ties the other.

    Against Energize, grass-fed sourcing distinguishes GWL. Against Solar Whey, which all 5 models describe as grass-fed, it is shared ground, and GWL’s case has to rest on its isolate formulation.

Corroboration in the example report
CompanyClaimReading
Solar WheyGrass-fed sourcingConsistent across all five models
Good Whey LabsGrass-fed sourcingWell supported, but Solar makes the same claim
Good Whey LabsIndependent metals testingIts strongest evidence, and its least repeated
Energize IsolateHydrolyzed wheyWidely repeated; cited sources do not show faster recovery

What to publish next · ranked excerpt

  1. P1

    Publish a testing page listing each tested lot, its flavor, and its metals results against specification.

    Where
    Product page and a new testing page
    Evidence
    Existing independent purity and ingredient-verification reports
    Why first
    It is GWL’s one distinctive evidence claim, and it reaches no more models than Energize’s less specific statement. Describe the results as covering tested lots, never as “metals-free.”
  2. P2

    State protein by serving weight next to the 28g headline.

    Where
    Product page, nutrition FAQ, and comparison pages
    Evidence
    Label and ingredient report (34.9g serving)
    Why
    Answers already compare serving sizes. A normalized figure stops GWL’s number from being discounted.
  3. P3

    Separate the comparison content by rival. Against Energize, lead with grass-fed sourcing and no artificial sweeteners; against Solar, lead with the isolate formulation. Add FAQ and Product structured data to each page.

    Where
    Comparison pages and structured data (website audit)
    Evidence
    Product sheets for all three formulas
    Why
    One generic “why GWL” message loses to Solar, where grass-fed is shared ground in all 5 models.

Counts come first: how many of five models carry each claim, and how often it is cited. The claim-support score combines the two, weighting model answers at 65% and cited sources at 35%, to show relative coverage between two products on one claim. It makes no judgment of product quality.

Good Whey Labs: Milk Chocolate isolate. Energize Isolate: Chocolate hydrolyzed isolate. Solar Whey: Standard Unflavored concentrate; its separate isolate is outside this comparison.

Good Whey Labs versus Energize Isolate. Claim bridge. Selected claim: Protein per serving.

AGood Whey Labs

BEnergize Isolate

Implication for Good Whey Labs

Grass-fed sourcing distinguishes Good Whey Labs in this pair. Against Solar Whey, it becomes shared ground. GWL’s advantage then depends on its isolate formulation and the buyer’s requirements.

Comparison view

Brand names changed · Real answers, October 2026

Contested claims

Compare the same proposition across both products, then inspect its caveats
GWL
2/5 models21 cited pages

28g protein per labeled serving.

Energize
5/5 models19 cited pages

25g protein per 32g serving.

Protein per serving
3763
Weighted claim support
GWL
4/5 models20 cited pages

Whey protein isolate supplies the protein in GWL’s Milk Chocolate formula.

Energize
3/5 models14 cited pages

Combines hydrolyzed whey protein isolate with whey protein isolate.

Whey isolate formula
5842
Weighted claim support
GWL
3/5 models12 cited pages

Provides all nine essential amino acids.

Energize
3/5 models12 cited pages

Provides all nine essential amino acids.

All 9 essential amino acids
5050
Weighted claim support

Distinctive claims

Claims represented for one product rather than the other in this pairing
Good Whey Labs
Grass-fed sourcing
4/5 models26 cited pages
No artificial sweeteners
4/5 models23 cited pages
Independently verified for metals
3/5 models17 cited pages
Energize Isolate
Hydrolyzed whey
4/5 models27 cited pages
Dessert-style flavor range
3/5 models15 cited pages
Banned-substance tested
3/5 models18 cited pages
Selected contested claim

Protein per serving

3763
Weighted claim supportEnergize leads on this claim
Good Whey Labs

28g protein per labeled serving.

2/5 models21 cited pages

The Milk Chocolate ingredient report uses a 34.9g serving. Protein per serving must be normalized by serving weight to compare concentration.

  • Product information

    Milk Chocolate: formulation and nutrition

    Good Whey Labs combines grass-fed whey protein isolate, cocoa, and stevia. It provides 28g protein per labeled serving, with all nine essential amino acids, and excludes artificial sweeteners and colors. The product is positioned as gluten-free and non-GMO.

Energize Isolate

25g protein per 32g serving.

5/5 models19 cited pages

Serving size matters: grams per scoop do not establish better absorption or recovery.

  • Product information

    Chocolate: ingredients and nutrition facts

    Energize Isolate combines hydrolyzed whey isolate and whey isolate. A 32g serving provides 25g protein, 5.5g BCAAs, and 0g added sugar. Ingredients include cocoa, soy lecithin, natural and artificial flavor, sucralose, and stevia.

Conditional advantages

A stronger fit for a specific requirement

When the brief calls for
A stated grass-fed sourcing requirement

Good Whey Labs

GWL explicitly combines grass-fed sourcing with whey isolate. Energize emphasizes hydrolysis and flavor-led performance positioning.

4/5 models26 cited pages

Evidence profile: Grass-fed sourcing

When the brief calls for
A hydrolyzed whey requirement

Energize Isolate

Energize includes hydrolyzed isolate. That meets the processing preference; it does not by itself prove a superior recovery outcome.

4/5 models27 cited pages

Evidence profile: Hydrolyzed whey

Reported concerns

Taste, tolerance, preparation, and price can change a recommendation. Coverage shows how a concern is represented in the analysis, not complaint incidence among customers.

Good Whey Labs
Flavor disappointment

Milk Chocolate whey isolate

User report

A Milk Chocolate buyer describes the shake as bland and diluted.

3/5 models9 cited pages
Source context

Other buyers in the same discussion like the flavor. This is a taste report, not a verdict on the whole range.

  • Customer discussion

    Milk Chocolate: flavor feedback

    One buyer describes Milk Chocolate as bland and diluted. Other reactions in the same discussion are favorable.

Reported stomach discomfort

Milk Chocolate whey isolate

User report

Buyers report stomach discomfort after using Milk Chocolate.

4/5 models16 cited pages
Source context

The reports do not establish a cause or frequency. Stevia, flavoring oils, and other ingredients cannot be singled out from these accounts.

  • Customer discussion

    Milk Chocolate: reported stomach discomfort

    Buyers report stomach discomfort after using Milk Chocolate. Their accounts do not establish a diagnosed cause, an implicated ingredient, a defective batch, or how frequently the experience occurs.

Premium price

Milk Chocolate whey isolate

Firsthand review

A firsthand review identifies price as the drawback of GWL’s Milk Chocolate isolate.

4/5 models21 cited pages
Source context

The reviewer also values the taste and ingredients. The decision is whether those features justify the premium for this buyer.

  • Firsthand review

    Milk Chocolate: taste, ingredients, and price

    A firsthand reviewer identifies premium price as a drawback while valuing the taste and ingredient choices. The review supports a cost-versus-preference tradeoff, not a finding that every buyer receives poor value.

Energize Isolate
Taste and texture changes

Chocolate hydrolyzed whey isolate

User report

Chocolate buyers describe differences in taste and texture between purchases.

3/5 models14 cited pages
Source context

Perceived changes are not proof of reformulation. Reports do not agree on a consistent texture direction.

  • Customer discussion

    Chocolate: differences between purchases

    Buyers describe changes in taste and texture between Chocolate purchases. Their descriptions differ, and the discussion does not establish that the manufacturer officially reformulated the product.

Too sweet for some preferences

Chocolate hydrolyzed whey isolate

User report

One buyer finds Chocolate overly sweet when mixed with 2% milk.

2/5 models8 cited pages
Source context

Preparation matters. This older account does not establish how all buyers experience the current formula.

  • Customer discussion

    Chocolate mixed with milk: sweetness feedback

    A buyer finds Chocolate overly sweet when mixed with 2% milk and asks for a less-sweet option. The preparation and preference are specific; the older discussion is not a controlled test of the current formula.

Artificial-ingredient exclusions

Chocolate hydrolyzed whey isolate

Ingredient preference

Sucralose and artificial flavoring conflict with a brief that excludes those ingredients.

4/5 models19 cited pages
Source context

This is an ingredient preference, not a safety finding. Only ingredients listed for this flavor belong in the comparison.

  • Product information

    Chocolate: ingredients and nutrition facts

    Energize Isolate combines hydrolyzed whey isolate and whey isolate. A 32g serving provides 25g protein, 5.5g BCAAs, and 0g added sugar. Ingredients include cocoa, soy lecithin, natural and artificial flavor, sucralose, and stevia.

Evidence notes & how to read the scores

Model coverage. A filled badge means the claim appears in that model’s answers. It does not verify the claim or imply an endorsement, and an unfilled badge means only that the claim did not appear.

Weighted claim support. For each shared claim, a product receives 65% of its share of the two products’ model counts plus 35% of its share of their cited-page counts. The two displayed scores total 100. Whole-point rounding is symmetric; scores that display equally are level. The score compares two products on one claim and says nothing about factual accuracy or overall quality.

Cited pages. Each count represents distinct source URLs for that product’s claim, deduplicated across its answers. A page supporting both products may count once for each. Citation volume does not measure source quality or independence.

Answers collected October 2026

Good Whey Labs
Milk Chocolate whey isolate
Energize Isolate
Chocolate hydrolyzed whey isolate

Milk Chocolate and Chocolate use different labeled serving weights. Flavor-range and testing claims are identified separately from formula-specific facts. No overall quality ranking follows from this comparison.

Scope and attribution. Product statements, laboratory findings, and reported experiences establish different things. A testing claim is limited to its report; one customer’s experience is not a population estimate. Distinctive means relevant to this pairing, not exclusive across the market.

  • Product information

    Milk Chocolate: formulation and nutrition

    Good Whey Labs combines grass-fed whey protein isolate, cocoa, and stevia. It provides 28g protein per labeled serving, with all nine essential amino acids, and excludes artificial sweeteners and colors. The product is positioned as gluten-free and non-GMO.

  • Product information

    Chocolate: ingredients and nutrition facts

    Energize Isolate combines hydrolyzed whey isolate and whey isolate. A 32g serving provides 25g protein, 5.5g BCAAs, and 0g added sugar. Ingredients include cocoa, soy lecithin, natural and artificial flavor, sucralose, and stevia.

  • Testing and verification

    Independent laboratory testing: metals and ingredient verification

    Public purity reports identify a tested lot and give results for lead, cadmium, arsenic, and mercury against stated specifications. Ingredient verification is reported separately. The metals evidence concerns tested lots in the whey isolate range; the applicable flavor and batch must be matched to each report.

  • Product information

    Flavor range and product positioning

    Energize Isolate’s range emphasizes flavored shakes, including dessert- and cereal-inspired options. Its Chocolate formulation is one product within that range; other flavors have their own ingredient and nutrition profiles.

  • Testing and verification

    Manufacturer’s banned-substance-testing statement

    The manufacturer states that the product is banned-substance tested. The statement does not by itself specify a complete panel, testing frequency, or clearance of every production batch.

Source summaries are edited under the changed brand names. They are not verbatim quotations or statements about any real company.

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