Who AI recommends, and when it changes.
Data as of Apr 19, 2026 · Based on 17 AI answers · A buyer need in Protein Powders and Fitness Supplements. · See how Parse measures this
Where a different pick wins:
AI singles out Ballerina Farm Vanilla as the top flavored whey when taste is paramount. · 1 source
Nutricost Whey Concentrate is highlighted as the lowest-cost option for bulk protein shoppers. · 1 source
Transparent Labs Organic Plant-Based is recommended as the best plant-based protein for dairy-free buyers. · 1 source
Optimum Nutrition Gold Standard is cited as the best value whey, balancing cost and quality for bulk purchases. · 1 source
Transparent Labs 100% Grass-Fed Whey Isolate dominates the best overall whey category. · 1 source
Transparent Labs Whey Isolate is noted for its transparency and grass-fed sourcing. · 1 source
Recommendation share
Costco leads at 29% of AI recommendations; Walmart follows at 24%.
By platform
Platforms disagree: Costco leads on Google AI Overviews, Transparent Labs on ChatGPT.
Representative prompts behind this market ranking, and how AI tends to answer.
Buyer needs that sit next to this one in the same market.
Why here: Cited repeatedly for bulk pricing on Premier Protein and Fairlife, often paired with Sam's Club as the go-to warehouse retailer. · 5 sources
Why here: Recommended as best value whey powder, appealing to bulk buyers seeking a cost-effective, widely available option. · 2 sources
Why here: Highlighted for best taste among flavored whey options, recommended when flavor is the priority. · 1 source
Why here: Positioned as the best budget whey concentrate, offering low-cost protein for bulk purchasers. · 1 source
Why here: Recommended on ChatGPT as the Transparent Labs 100% Grass Fed Whey Protein Isolate. · 1 source
Why here: Frequently chosen as best overall whey isolate, valued for grass-fed quality. · 1 source
Why here: Designated best plant-based option, catering to non-dairy bulk protein seekers. · 1 source
Why here: Labeled best grass-fed/transparent whey, aligning with clean-label preferences. · 1 source
Costco“What is the best protein powder?”
AI breaks down recommendations by category, naming Transparent Labs 100% Grass-Fed Whey Isolate as best overall, Optimum Nutrition Gold Standard for value, and Nutricost Whey Concentrate for budget. Multiple
