Evergreen monthly benchmark — May 5
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 · May 5 selected · 14 snapshots
Key takeaway
The protein powder category remains an Optimum Nutrition/Dymatize duopoly at the top of AI recommendations. Nutricost has consolidated as Claude's value pick across all 3 prompt types — a meaningful brand momentum signal. Transparent Labs holds steady in 3 of 4 models as the premium pick. ChatGPT continues to over-index on commerce-popular budget brands (Six Star, Body Fortress, Premier Protein) while Claude pushes back hard on premium brand "marketing tax." This run shows the most consistent universal #1 in any category we've tracked — Optimum Nutrition has won every single prompt across every model.
Mention Frequency Trend
Brands ordered by mention count in each run. Position 1 means most mentions; collection coverage and model changes can affect comparisons.
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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.
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 |
| Claude | Nutricost | Dymatize | Optimum Nutrition |
| Gemini | Optimum Nutrition | Legion | MyProtein |
| Perplexity | Optimum Nutrition | Transparent Labs | Dymatize |
What This Means
- ChatGPT (commerce-formatted): Surfaces Six Star, Levels Grass Fed, Premier Protein, and Isopure that other models barely mention.
- Claude (most opinionated): Recommends Nutricost as #1 in 2 of 3 prompts as best value play, recommends pairing with creatine instead of upgrading whey, uniquely surfaces BulkSupplements.
- Gemini (lifestyle-formatted): Surfaces Promix and Muscle Milk as unique picks, frames decisions around use case (muscle gain vs all-rounder vs clean vs sensitive stomach).
- Perplexity (most consolidated): Surfaces Thorne and Orgain Vegan as unique premium picks.
Findings and Limitations
- Promix only appears in Gemini.
- Muscle Milk only appears in Gemini.
- Levels only appears in ChatGPT.
- Premier Protein only appears in ChatGPT.
- Isopure only appears in ChatGPT.
- BulkSupplements only appears in Claude.
- Vega only appears in Claude.
- Thorne only appears in Perplexity.
- Orgain only appears in Perplexity.
- Major brands like BSN, Cellucor C4, Vital Proteins, Promix Athletic, Garden of Life, and Ghost have minimal cross-model authority.
- Naked Nutrition has weak Claude-only presence.
Recurring themes in the answers
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
I'm a 28-year-old guy who works out 4-5 times a week, looking for the best protein powder. What would you recommend?
Top picks: 1. Optimum Nutrition Gold Standard Whey $54.99 4.7 best overall most balanced 24g blend isolate+concentrate. 2. Optimum Nutrition Gold Standard Isolate $76.99 4.7 best lean muscle 25g minimal carbs/fat better digestion. 3. Dymatize ISO100 Hydrolyzed Whey $33.43 4.5 best fast recovery hydrolyzed isolate fastest absorption. 4. Isopure Zero Carb Whey Isolate $32.99 4.4 best low-carb 25g 0 carbs cutting/keto.
Claude · Prompt 1Usable answer
I'm a 28-year-old guy who works out 4-5 times a week, looking for the best protein powder. What would you recommend?
Whey isolate is default winner. Best overall value: Nutricost Whey Isolate or Bulk Supplements Whey Isolate roughly $1/serving third-party tested no fluff. Best mainstream brand: Optimum Nutrition Gold Standard 100% Whey blend concentrate+isolate tastes good widely available. Lactose intolerant/plant-based: Naked Pea or Vega Sport blend. Skip mass gainers, proprietary blends, fat burner protein powders. Look for NSF Certified for Sport or Informed Choice labels. Most overspend on supplements while underinvesting in sleep, progressive overload, and food.
Gemini · Prompt 1Usable answer
I'm a 28-year-old guy who works out 4-5 times a week, looking for the best protein powder. What would you recommend?
Top picks 2026: 1. Best for Muscle Gain: Dymatize ISO100 Hydrolyzed Whey 25g 110cal hydrolyzed faster absorption. 2. Best All-Rounder: Optimum Nutrition Gold Standard 100% Whey industry standard 24g 120cal whey isolate+concentrate 20+ flavors. 3. Best Clean/Premium: Transparent Labs Grass-Fed Whey Isolate 28g grass-fed no artificial sweeteners/dyes/fillers. 4. Best Sensitive Stomachs: Promix Whey Isolate micro-filtered less than 1g lactose light easy digest.
Perplexity · Prompt 1Usable answer
I'm a 28-year-old guy who works out 4-5 times a week, looking for the best protein powder. What would you recommend?
Frequently Asked Questions