Evergreen monthly benchmark — Jul 19
Protein Powder
Research by Robert Hu · Published by RecoScope ·
- Usable answers
- 12/12
- Models
- 4
- Prompt types
- 3
Included: ChatGPT, Claude, Gemini, Perplexity
Report history · Jul 19 selected · 14 snapshots
Key takeaway
For a lean-muscle lifter, AI routes to the same three brands in every engine - Optimum Nutrition, Transparent Labs, Dymatize - with Transparent Labs winning the explicit ranking prompt in three of four engines while Optimum Nutrition remains the universal buy-first recommendation. The new development is a heavy-metals contamination narrative now surfacing in two engines, which elevates third-party certification from a nice-to-have to a stated purchase gate and specifically penalizes plant-based powders.
Mention Frequency Trend
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 Mentioned12/12
2DymatizeTop 3 across models8/12
2Transparent LabsTop 3 across models8/12
4Naked Nutrition4/12
4Nutricost4/12
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.
4/4 models with recorded ranks
| Agent | #1 | #2 | #3 |
|---|---|---|---|
| ChatGPT | Optimum Nutrition | Dymatize | Transparent Labs |
| Claude | Transparent Labs | Optimum Nutrition | Ghost |
| Gemini | Transparent Labs | Optimum Nutrition | Dymatize |
| Perplexity | Transparent Labs | Optimum Nutrition | Dymatize |
What This Means
- Transparent Labs takes the aggregate #1 for three of four engines (ChatGPT, Gemini, Perplexity) with Optimum Nutrition second in each, while Claude inverts it - Optimum Nutrition first, Transparent Labs second.
- Notably this is an exact inversion of the ranking-prompt result: in the explicit brand-comparison prompt, Transparent Labs led for Claude, Gemini, and Perplexity while ChatGPT crowned Optimum Nutrition.
- The aggregate flips both outliers, because ChatGPT opened its discovery prompt with Transparent Labs and Claude opened both its discovery and budget prompts with Optimum Nutrition.
- It is the clearest case in the dataset of a brand winning the head-to-head ranking prompt while losing the aggregate, and vice versa - and it preserves the category's rank-versus-recommend split, since every engine still names Optimum Nutrition as the practical buy-first pick regardless of where it ranks.
- Below the top two, Dymatize holds #3 for ChatGPT and Gemini, while the challenger tier breaks through elsewhere: Naked Nutrition takes Claude's #3 on minimal-ingredient positioning - its strongest result in any run - and Myprotein takes Perplexity's #3 on value.
- ChatGPT gives the deepest ranked bench (eight brands, uniquely surfacing Isopure and MuscleTech) and flags contamination inside its ranking.
- Claude is the most certification-forward, carries the most detailed contamination warning with study figures, and surfaces Ascent and Ghost.
- Gemini is the most table-driven and macro-specific, uniquely surfacing Levels, Orgain, and Garden of Life.
- Perplexity gives the widest tail, uniquely surfacing Kaged and Swolverine.
Findings and Limitations
- The core three are entrenched and the challenger tier churns run to run: Kaged, Promix, Ghost, Legion, Momentous, Isopure, and Swolverine cycle in and out without consolidating cross-model presence.
- The plant-based tier is thin and now carries an active headwind - the contamination narrative specifically names plant-based powders as testing worst, which will suppress the entire category in AI recommendations regardless of individual brand quality.
- Ritual, Orgain, Garden of Life, and Transparent Labs Vegan each surface in exactly one engine.
- Retail-dominant brands remain absent: Premier Protein, Six Star, Body Fortress, and Costco house brands do not surface despite major shelf presence, the persistent marketplace-versus-AI-visibility disconnect.
- Naked Nutrition's entry into three engines on minimal-ingredient positioning is the run's clearest challenger gain.
Recurring themes in the answers
- The brands AI favors share whey-isolate-first framing for the lean-muscle persona, third-party certification as the universal gate (NSF Certified for Sport, Informed Sport, Informed Choice - now explained unprompted by every engine), 24-28g protein per serving, and clean-label positioning as the premium differentiator.
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.
ChatGPT · Prompt 1Usable answer
Best protein powder, 28yo trains 4-5x/week, lean muscle
ChatGPT P1: Recommendation Transparent Labs Grass-Fed Whey Protein Isolate (28g protein, whey isolate, no artificial sweeteners/dyes/fillers, third-party tested; downside ~$60 per two-pound tub). Best value Optimum Nutrition Gold Standard Whey (24g, whey isolate first ingredient, good mixability, many flavors, better cost per serving; contains some concentrate so may bloat dairy-sensitive). Best plant-based Ritual Essential Protein Daily Shake (20g pea protein, complete amino profile, 8g EAAs, 4g BCAAs). Best for competitive athletes: choose products in the NSF Certified for Sport or Informed Sport database - Informed Sport tests every certified batch. Aim 20-30g per scoop, minimal added sugar, third-party certification. Harvard recommends limiting powder to roughly one-third or less of daily protein. Bottom line: Transparent Labs for premium, ON Gold Standard for value.
Claude · Prompt 1Usable answer
Best protein powder, 28yo trains 4-5x/week, lean muscle
Claude P1: Whey protein isolate or a whey concentrate/isolate blend is the best all-around choice. Complete amino profile with high leucine, fast-digesting, cheap per gram. Look for 20-25g protein per scoop, minimal added sugar, third-party tested (NSF Certified for Sport or Informed Sport) - this matters more than brand name since supplement contamination and mislabeling is a real issue. Simple ingredient list. Solid options that consistently test well: Optimum Nutrition Gold Standard 100% Whey (the reliable default, good value, huge flavor variety), Transparent Labs 100% Grass-Fed Whey Isolate (cleaner label, no artificial sweeteners, pricier), Ascent Whey Isolate (very clean, NSF certified, minimal ingredients). Skip proprietary blends and be wary of 30g-plus claims per small scoop - often padded with fillers. Price per serving matters more than price per tub.
Gemini · Prompt 1Usable answer
Best protein powder, 28yo trains 4-5x/week, lean muscle
Gemini P1 top contenders table: Transparent Labs Grass-Fed Whey Isolate (cleanest premium pick, 28g/120-140cal, 100% transparent label, zero artificial sweeteners or dyes, grass-fed, highly filtered virtually no lactose or bloating). Optimum Nutrition Gold Standard 100% Whey (best budget/everyday, 24g/120cal, the most tested reliable and widely available powder on earth, blends flawlessly in a shaker). Dymatize ISO100 Hydrolyzed (fastest digestion and lean muscle, 25g/110-120cal, hydrolyzed for ultra-fast absorption, virtually zero carbs/fat, perfect for leaning out). Garden of Life Sport Plant Protein (best plant-based/dairy-free, 30g/160-170cal, top-tier vegan blend, complete amino profile). Aim 0.8-1.0g protein per pound bodyweight daily; the 30-minute post-workout window is mostly a myth.
Frequently Asked Questions
Which protein powder brands appear most often?▾
Optimum Nutrition appeared in 12 of 12 answers. This snapshot includes 12 usable answers from ChatGPT, Claude, Gemini, Perplexity. Mentions include comparisons and criticism.
Which brands rank first in the protein powder comparison answers?▾
ChatGPT: Optimum Nutrition; Claude: Transparent Labs; Gemini: Transparent Labs; Perplexity: Transparent Labs
Why do models give different protein powder answers?▾
Transparent Labs takes the aggregate #1 for three of four engines (ChatGPT, Gemini, Perplexity) with Optimum Nutrition second in each, while Claude inverts it - Optimum Nutrition first, Transparent Labs second. Notably this is an exact inversion of the ranking-prompt result: in the explicit brand-comparison prompt, Transparent Labs led for Claude, Gemini, and Perplexity while ChatGPT crowned Optimum Nutrition. The aggregate flips both outliers, because ChatGPT opened its discovery prompt with Transparent Labs and Claude opened both its discovery and budget prompts with Optimum Nutrition. It is the clearest case in the dataset of a brand winning the head-to-head ranking prompt while losing the aggregate, and vice versa - and it preserves the category's rank-versus-recommend split, since every engine still names Optimum Nutrition as the practical buy-first pick regardless of where it ranks. Below the top two, Dymatize holds #3 for ChatGPT and Gemini, while the challenger tier breaks through elsewhere: Naked Nutrition takes Claude's #3 on minimal-ingredient positioning - its strongest result in any run - and Myprotein takes Perplexity's #3 on value. ChatGPT gives the deepest ranked bench (eight brands, uniquely surfacing Isopure and MuscleTech) and flags contamination inside its ranking. Claude is the most certification-forward, carries the most detailed contamination warning with study figures, and surfaces Ascent and Ghost. Gemini is the most table-driven and macro-specific, uniquely surfacing Levels, Orgain, and Garden of Life. Perplexity gives the widest tail, uniquely surfacing Kaged and Swolverine.