How ChatGPT, Claude, Perplexity, and Gemini are reshaping discovery for vitamins, supplements, functional nutrition, and wellness — and which brands are getting recommended, which are getting mentioned, and which are getting routed past.
Three things make supplements unique. One: the regulatory and ingredient complexity is brutal — buyers want to know what's clinically proven, what's third-party tested, what's NSF-certified. AI compresses all of that into one answer. Two: trust is the entire purchase decision. Nobody buys a multivitamin on impulse. Three: "lifestyle" brands and "clinical" brands now compete for the same answer — and the structural infrastructure decides which ones AI cites.
Twelve named Shopify supplement brands, ranked by AI Visibility Score (AVIS) — a 0-100 composite of presence rate, lead-position rate, and citation authority across ChatGPT, Claude, Perplexity, and Gemini. Top of the table is winning AI search. Bottom is losing customers without knowing it. Momentous sits at rank 08 with a score of 49 — below the category median despite elite athlete adoption, NSF certification, and a public Huberman partnership that most brands would kill for.
Full leaderboard of all 42 brands and per-platform breakdown available in the supplements category data pack. Methodology in footer.
Across 42 audits, the gap between top and bottom comes down to a small number of recurring structural issues. None of them is a marketing problem. All of them are fixable.
Momentous has NSF Certified for Sport testing on its full product line — one of the strictest certifications in the industry. ChatGPT knows this. When asked "best NSF certified supplements," Momentous is cited at position two. But when the same buyer asks "best supplements backed by clinical research," Momentous drops to position six — behind creatine monohydrate as a category, whey protein as a category, and Thorne as a brand. The certification exists. The structured clinical signal that would move Momentous from "also certified" to "the clinical standard" is not parseable from the PDP.
Where it shows up: AI knows Momentous has NSF certification. It does not understand Momentous as a clinical authority. That difference costs position on every query where buyers are asking about science rather than sport.
Layer 3 · TrustAndrew Huberman publicly partners with Momentous and mentions them by name on one of the most listened-to science podcasts in the world. ChatGPT cites Momentous first when asked "what supplements does Andrew Huberman recommend." That is a genuine win. But when the same buyer asks "best magnesium for sleep and recovery" — a query Momentous products are directly built for — Thorne leads and Momentous is second. The influencer signal gave Momentous awareness. The structured ingredient data that would give them authority on the query itself is missing.
Where it shows up: Podcast-driven brand awareness does not transfer to AI visibility on product-level queries. Magnesium L-threonate crossing the blood-brain barrier is a parseable clinical claim. It needs to be structured data on the PDP, not a podcast talking point.
Layer 2 · UnderstandingMomentous supplies supplements to over 200 professional and collegiate sports programs. ChatGPT is aware of this — when asked "what creatine do NFL teams use" or "what supplement brand do professional sports teams trust most," Momentous appears prominently. But when asked "what supplements are safe for NCAA athletes," Momentous drops to position three behind Thorne and NSF Certified for Sport as a category. The professional adoption is real and documented. The structured entity signal that would make AI understand Momentous as the institutional standard — not one of several options — is not wired correctly across their digital presence.
Where it shows up: 200+ professional and collegiate program partnerships is an extraordinary credential. AI is citing it as context rather than as a category-defining authority signal. That is a fixable infrastructure problem, not a brand problem.
Layer 3 · TrustThe category split that defined supplements marketing from 2018-2024 is reversing. The lifestyle playbook — TikTok creators, founder storytelling, influencer seeding, aesthetic packaging — built brands like Bloom Nutrition, Obvi, and AG1 into category leaders. But the AI infrastructure rewards a different set of signals. And the brands that have it are winning twice: in legacy retail, in healthcare practitioner channels, and now in AI search.
Momentous has Andrew Huberman. They have 200+ professional and collegiate sports programs. They have NSF Certified for Sport across their full line. By every brand signal that matters in human performance circles, Momentous is winning. But Thorne has structured ingredient data, parseable clinical references, and a practitioner-trust entity signal that compounds across every query that matters at the moment of purchase. Thorne's PDPs aren't exciting. Their social presence is minimal. What they have is the boring infrastructure that AI engines rank on.
This isn't a story about Thorne winning. It's a story about Momentous being structurally invisible on the queries that convert — and donating that share to a brand they outperform in every room where humans are paying attention.
The US dietary supplements market is $68.7B and growing at 8.5% annually (Grand View Research). Online discovery now drives roughly 47% of new-customer acquisition in the category. Of that online discovery, ~38% now starts and ends inside an AI engine — higher than any other CPG category because supplement buyers research obsessively before they buy.
For an individual brand, the per-brand gap ranges from $380K (small DTC, $5M revenue) to $5.8M (mid-market, $50M+ revenue) annually, depending on category presence and conversion rate from AI mentions. The brands at the top of the leaderboard are capturing this share now. The brands at the bottom are donating it to clinical-positioned competitors that built the infrastructure first.
Same category. Same buyer. Different infrastructure. The gap between Thorne (89) and Momentous (49) is not reputation — Momentous has more athlete endorsements, more professional sports partnerships, and a more visible public presence. The gap is structural choices on five specific dimensions that AI engines read at query time.
We apply the same four-step framework to every brand we audit. Score first. Audit second. Fix third. Measure to verify. Each step has specific outputs.
We're selecting 10 health & supplement brands to work alongside us for 6 months as design partners. Six months of full platform access, free. Direct input into the product roadmap. Founding partner positioning in our case studies and category reports.
In exchange we ask for: 30 minutes biweekly, willingness to ship fixes we recommend, and permission to cite results in our research. Applications reviewed on a rolling basis. Spots filled by fit, not first-come.
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Sample. 42 named DTC supplement brands tested across 187 buyer queries on ChatGPT 4o, Claude 3.5 Sonnet, Perplexity, and Gemini. All audited brands run on Shopify and fall in the $1M–$1B revenue range. Queries sourced from observed category search volume (Similarweb, Google query expansion, Examine.com query patterns) and validated against supplement community activity (Reddit r/Supplements, r/Nootropics, podcast episode topics from Huberman Lab and Tim Ferriss).
AVIS scoring. Composite 0-100 score weighted: 50% presence rate (named in any answer), 30% lead-position rate (first-named), 20% citation authority (own pages used as sources). Tier thresholds: Critical 0-20, Poor 21-40, Fair 41-60, Strong 61-80, Dominant 81-100.
Category sizing. US dietary supplements market baseline: $68.7B (Grand View Research, US Dietary Supplements Market Overview). Category CAGR: 8.5% through 2033 (Grand View Research). Online discovery share: 47% (Statista DTC Wellness Report). AI-routed share within online discovery: 38% (RevvUp proprietary measurement across 42-brand panel). Resulting category-level AI-routed revenue estimate: $12.1B annually, projected to $31B within two years at observed 56% CAGR for AI-routed traffic.
Confidence. Directional. Not accounting-grade. Brand-level scores are honest about what we tested and what we didn't. Full per-brand audit available on request.