Is that bottle worth it?
Let the evidence answer.
dietarysupplement.ai is a neutral dietary-supplement scoring advisor. Snap a Supplement Facts label or paste an ingredient list, and it returns a reproducible score across Formula, Quality, and Safety — brand-agnostic, with reference-value differences flagged for your market.
No app to download. Score it from any chat.
Same scoring engine, three platforms. The model is whatever each platform provides — you just snap or paste, and get the same explainable, reproducible result.
ChatGPT
Live. Snap the label or paste the ingredient list — instant three-dimensional score with reasons.
Open the GPT →Claude
Download .skill, then upload it in Claude.ai → Settings → Capabilities → Skills. Same scoring engine, on-demand in any chat.
Gemini
The same three-dimensional scorer inside Gemini — snap a photo or paste a formula.
Open the App →Three dimensions. One transparent ruler.
Each dimension comes with a score and an itemized rationale. Results are reproducible — the same formula always gets the same number. We don't claim "objective truth"; we promise an open, consistent ruler.
Formula
Does each active ingredient sit inside its evidence-backed effective range, in a bioavailable form? Underdosing ("fairy dust") is called out and penalized.
Quality
Third-party testing, GMP, NSF / USP-style certifications, plus absorbable forms and verifiability. No certification means quality cannot be verified.
Safety
Does it stay under the Tolerable Upper Intake Level (UL)? Pregnancy and other context flags are added where relevant. Over-dosing is penalized and flagged.
The ruler is on the table. Inspect it yourself.
Open, auditable methodology
The scoring logic and reference tables are open-sourced on GitHub. Anyone can verify how a score was computed — no black box.
Same ruler, every brand
All products are scored under the same rules. Expensive, cheap, store-brand, premium — identical treatment.
Reproducible, not "objective"
We don't claim absolute truth — only transparency and consistency. The same input always yields the same output.
Market-calibrated
National RDAs, ULs, and permitted claims differ. Scores flag the relevant differences for your market and stay conservative by default.
Score a bottle right now.
Snap a Supplement Facts label or paste an ingredient list. Thirty seconds to know whether that bottle is actually worth it.
Open in ChatGPT →