For a lean-muscle lifter, the three responding engines agree on the same top three in the same order in the ranking prompt - Transparent Labs, Optimum Nutrition, Dymatize - while still telling the buyer to start with Optimum Nutrition on value. That rank-versus-recommend split is the category's defining pattern this run. Legion arriving in two engines at once and Thorne crossing categories are the challenger movements; ChatGPT's second consecutive full outage is the reliability finding.
Brands ordered by mention count in each run. Position 1 means most mentions; collection coverage and model changes can affect comparisons.
Scroll sideways to see all dates and labels.
Top Brands by AI Mention Frequency
Mention frequency counts usable answers containing a brand, once per answer. Unranked and critical mentions count as visibility. Recommendation ranks are shown separately below.
Most Mentioned = most answers mentioning a brandTied #1 = tied for most mentionsTop 3 across models = a recorded top-three rank in multiple comparisonsRanked #1 in [Model] = first in that comparative answerUnranked mentions = visibility without an inferred rank
1Optimum NutritionMost Mentioned9/9
2DymatizeTop 3 across models8/9
3Transparent LabsTop 3 across models6/9
4Momentous3/9
5GGhost2/9
Cross-Agent Comparison
Recorded ranks from the comparative prompt (Prompt 3). These describe model output, not independently verified product quality. Historical parsing conventions may differ.
3/3 models with recorded ranks
Agent
#1
#2
#3
Claude
Transparent Labs
Optimum Nutrition
Dymatize
Gemini
Transparent Labs
Optimum Nutrition
Dymatize
Perplexity
Transparent Labs
Optimum Nutrition
Dymatize
All 3 ranked comparisons list Transparent Labs at recorded rank #1
What This Means
The three responding engines split two-to-one on the aggregate #1: Optimum Nutrition leads for Gemini and Perplexity, Transparent Labs leads for Claude, and every engine has the other of those two at #2 - the tightest two-brand aggregate race in the category to date.
The table exposes two profiles the prose would miss: Dymatize is second on total mentions (eight of nine responses) yet reaches only one engine's top 3 (Perplexity #3), the always-present, rarely-top-picked pattern; and Nutricost cracks two aggregate top-3s (Claude, Gemini) on just two mentions, because both were #2 slots in the budget prompts.
The rank-versus-recommend split holds across all three engines: each crowns Transparent Labs #1 in its explicit ranking prompt while advising the buyer to start with Optimum Nutrition on value.
Claude surfaces the deepest ranked list (six brands including Legion, Momentous, Ghost).
Gemini uniquely surfaces Thorne on medical-grade NSF framing.
Perplexity uniquely surfaces Muscle Milk, Vitamin Shoppe house brands, and the plant tier (Orgain, Truvani).
ChatGPT is absent (second consecutive outage day).
Findings and Limitations
The challenger tier shifted rather than thinned: Kaged, Promix, Myprotein, NutraBio, Swolverine, MuscleTech, Levels, Isopure, Premier Protein, and Body Fortress - all present in the May run - did not surface, while Legion (two engines at once), Thorne, Truvani, Muscle Milk, and Vitamin Shoppe house brands entered.
The plant-based tier remains thin and Perplexity-concentrated.
Amazon-strong budget names (Body Fortress, Six Star, Isopure) and the Costco/Walmart retail giant Premier Protein are absent again - the recurring marketplace-vs-AI-visibility disconnect.
No budget brand below Nutricost holds multi-engine agreement.
Recurring themes in the answers
The brands AI favors share whey-isolate-first framing for the lean-muscle persona, third-party testing as the universal gate (NSF Certified for Sport, Informed Sport, Informed Choice - every model now explains the badges unprompted), 20-30g protein per serving as the cited floor, clean-label positioning (no artificial sweeteners) as the premium differentiator, and price-per-serving as the value math every model walks through.
Inspect the captured answers
Saved response text is model output. Product and health claims are unverified. Tables and cards may be transcribed as text; source labels can remain. Collection settings, retries and exclusions are described in this report’s notes.
Claude · Prompt 1Usable answer
Best protein powder, 28yo trains 4-5x/week, lean muscle
Claude P1: Best overall Transparent Labs 100% Grass-Fed Whey Isolate (28g/120cal, no artificial sweeteners, stevia + monk fruit, Informed Sport tested, best protein-to-calorie ratio). Best value Optimum Nutrition Gold Standard (24g, ~1.30-1.70/scoop, 20+ year track record, isolate+concentrate+peptides blend). Best sensitive stomach Dymatize ISO100 (25g hydrolyzed, near-zero lactose, licensed Fruity Pebbles flavors). Best plant Momentous Essential Plant (pea+rice, 20g, NSF Certified for Sport). Rec: ON safest start, TL for cleaner ingredients, ISO100 for stomach issues. Always check third-party badges (NSF, Informed Sport/Choice).
Gemini · Prompt 1Usable answer
Best protein powder, 28yo trains 4-5x/week, lean muscle
Gemini P1: Concentrate-vs-isolate table first (concentrate 70-80% cost-effective; isolate 90%+ for bloat-prone/lean). Industry standard ON Gold Standard (isolate+concentrate blend, 24g/~120cal, mixes clump-free, affordability sweet spot). Clean premium Transparent Labs Whey Isolate (grass-fed, stevia, no sucralose/ace-K/dyes, 28g/130cal). Maximum refined Dymatize ISO100 (hydrolyzed, fastest absorption, arguably best-tasting, near-zero carbs/fats). Look for Certified for Sport / Informed-Choice badges.
Perplexity · Prompt 1Usable answer
Best protein powder, 28yo trains 4-5x/week, lean muscle
Perplexity P1: Whey default, isolate if cleanest digestion. Best value ON Gold Standard Whey (widely recommended, mixes well, 24g reliable starter). Best premium Transparent Labs Grass-Fed Whey Isolate (minimal ingredients, 28g). Best dairy-free Orgain Organic Vegan or Truvani (mixed plant blends better amino coverage than single-source). Rec: isolate first if strength-focused and dairy-tolerant; ON if budget matters; TL for cleaner panel. Target 20-30g/serving, avoid sugar/fillers.
Claude · Prompt 2Usable answer
Protein powder under 50 everyday use, same profile
Frequently Asked Questions
Which protein powder brands appear most often?▾
Optimum Nutrition appeared in 9 of 9 answers. This snapshot includes 9 usable answers from Claude, Gemini, Perplexity. Mentions include comparisons and criticism.
Which brands rank first in the protein powder comparison answers?▾
Why do models give different protein powder answers?▾
The three responding engines split two-to-one on the aggregate #1: Optimum Nutrition leads for Gemini and Perplexity, Transparent Labs leads for Claude, and every engine has the other of those two at #2 - the tightest two-brand aggregate race in the category to date. The table exposes two profiles the prose would miss: Dymatize is second on total mentions (eight of nine responses) yet reaches only one engine's top 3 (Perplexity #3), the always-present, rarely-top-picked pattern; and Nutricost cracks two aggregate top-3s (Claude, Gemini) on just two mentions, because both were #2 slots in the budget prompts. The rank-versus-recommend split holds across all three engines: each crowns Transparent Labs #1 in its explicit ranking prompt while advising the buyer to start with Optimum Nutrition on value. Claude surfaces the deepest ranked list (six brands including Legion, Momentous, Ghost). Gemini uniquely surfaces Thorne on medical-grade NSF framing. Perplexity uniquely surfaces Muscle Milk, Vitamin Shoppe house brands, and the plant tier (Orgain, Truvani). ChatGPT is absent (second consecutive outage day).
Licensed dessert flavors (Fruity Pebbles, Chips Ahoy) are the recurring taste hook for Dymatize and Ghost.
The concentrate-vs-isolate digestion fork is the primary buying axis across all three engines.
Claude P2: Best all-around ON Gold Standard 2lb (~35-43, 24g, ~1.30-1.50/serving, most trusted). Best bang for buck Nutricost Whey Concentrate 5lb (~45-50, 25g, ~68 servings, under 0.75/serving, third-party tested, limited flavors). Best clean macros Dymatize ISO100 1.6lb (~35-40, 25g hydrolyzed, <1g fat/carb, ~1.75-2.00/serving, cutting-friendly). Best budget plant NOW Sports Pea Protein 2lb (~22-28, 24g, unflavored, Informed Sport). Practical pick ON Gold Standard 2lb first.
Gemini · Prompt 2Usable answer
Protein powder under 50 everyday use, same profile
Gemini P2: 1 Gold standard ON 100% Whey (24g/3g/1.5g/120cal, 2lb ~35-45, ~1.30/serving, mixes effortlessly, dozens of flavors). 2 Budget bulk king Nutricost Whey Concentrate (25g/130cal, 5lb at/under 50 on sale, under 0.80/serving, third-party tested, no-frills). 3 Lean/lactose-friendly Dymatize ISO100 1.6lb (~35-40, 25g/<1g/<1g/110cal, hydrolyzed, Fruity Pebbles). Choose ON for safest all-rounder, Nutricost for max protein per dollar, Dymatize for sensitive stomach/strict macros.
Perplexity · Prompt 2Usable answer
Protein powder under 50 everyday use, same profile
Perplexity P2: Strongest budget picks: Dymatize ISO100 (~42, 25g, hydrolyzed, Informed Choice, lots of flavors). Muscle Milk 100% Whey (~1.30/serving, 25g, NSF Certified for Sport, lowest cost/serving). ON Gold Standard (24g, 2g+ leucine, Informed Choice, ~1.72/serving). NOW Sports Whey Isolate (25g, simple cleaner formula, ~1.63/serving). Vitamin Shoppe house deals (Natural Whey, Whey Tech Pro 24, 22.48-49.99). Safest daily buy ON; leaner upgrade ISO100; cheapest Muscle Milk.
Claude · Prompt 3Usable answer
Compare top protein powder brands and rank them, same profile
Claude P3 ranking: 1 Transparent Labs Grass-Fed Whey Isolate (28g/120cal, cleanest, Informed Sport, ~2.00-2.50/serving most expensive). 2 ON Gold Standard (24g, benchmark, best mixability, huge flavor range, Informed Choice, ~1.30-1.70). 3 Dymatize ISO100 (25g hydrolyzed, leanest macros, standout licensed flavors, ~1.70-2.00). 4 Legion Whey+ (22g, Irish grass-fed isolate, publishes full lab results, ~1.80-2.10). 5 Momentous Essential Grass-Fed Whey (20g, NSF Certified for Sport gold standard, NZ grass-fed, ~2.50+, lower protein/scoop). 6 Ghost Whey (25g, wins taste war with licensed flavors, higher cal/carb, ~2.00). Decision guide: cleanest TL, value ON, leanest ISO100, strictest testing Momentous, taste Ghost.
Gemini · Prompt 3Usable answer
Compare top protein powder brands and rank them, same profile
Gemini P3 2026 power rankings: 1 Transparent Labs Grass-Fed Isolate (28g/120cal/0g fat, cleanest formula, zero artificial, pricier but unmatched purity). 2 ON Gold Standard (24g/120cal, undisputed goat, mixes flawlessly, reliable blend, reasonable price). 3 Dymatize ISO100 Hydrolyzed (25g/110cal, light on stomach, dessert collabs). 4 Thorne Whey Protein Isolate (21g/100cal, medical-grade brand, NSF Sport elite-tier testing, ultra-clean, slightly less protein/scoop). 5 Ghost 100% Whey (25g/130cal, best taste, cookie pieces in Chips Ahoy/Nutter Butter, higher carbs/fats). Buy TL for label-readers, ON for reliable value, Dymatize for bloat-prone.
Perplexity · Prompt 3Usable answer
Compare top protein powder brands and rank them, same profile
Perplexity P3 ranking: 1 Transparent Labs Whey Isolate (best overall quality, 28g grass-fed, third-party tested, no artificial sweeteners/dyes). 2 ON Gold Standard (best value, 24g, widely available, long track record). 3 Dymatize ISO100 (lean post-workout, top taste/performance rankings, easy digestion). 4 Legion Whey+ (clean-label pick, high ingredient quality). 5 Momentous Essential Grass-Fed Whey (premium athlete option, sports-focused). Best overall TL; best value ON; cutting ISO100 or TL; simple-and-clean Legion or Momentous. One-bottle start: ON.
Does no mention mean a brand is invisible to AI?▾
No. Absence means the brand was not recorded in this limited set of prompts and usable answers. It does not establish absence from other AI answers.
How often is Optimum Nutrition mentioned?▾
Optimum Nutrition appeared in 9 usable answers in this snapshot. A mention is not necessarily a recommendation.
Which brands appear most in the budget answers?▾
Dymatize, Optimum Nutrition appeared in 3 of 3 usable budget answers each. This measures mentions, not verified price or budget compliance.
Does this benchmark prove AI recommendations are biased?▾
No. Differences in answers do not establish bias or prove that advertising or commercial integrations caused a recommendation. Model, tier and collection changes can also affect comparisons.
How was this protein powder snapshot collected?▾
3 prompt types were recorded across the participating services. 9 of 9 captured response records contain usable answers, from Claude, Gemini, Perplexity. Brand mentions and recorded ranks are measured separately. Unavailable and explicitly excluded answers do not contribute to brand analysis.
How we measure this
This snapshot uses 3 standardized prompt types. Usable answers were captured from Claude, Gemini, Perplexity. Collection failures are excluded; answers that name no brands remain in the usable-answer count.
Each brand is counted once per answer. Unranked, comparative and critical mentions contribute to visibility. Recorded response ranks are reported separately from mention frequency; they do not establish product quality.
Evergreen categories are benchmarked monthly. Results reflect the captured answers at the time of testing. Changes in coverage, model tiers and parsing can limit comparisons over time. Read the full methodology
How this report was produced
Evaluation period
Jul 9
Cadence
Monthly
Prompts evaluated
3
Models with usable answers
Claude, Gemini, Perplexity
Full details of how prompts are run, parsed, normalized, and scored are in the methodology, and the platform page explains how the system is built and operated.
