Evidence-Graded Longevity Protocol Tracker

The longevity wave (Blueprint, biohacking podcasts, $100B+ supplement market) created millions of people running personal 'protocols' tracked in Notion tables — stacking interventions they heard on podcasts with no idea which have human-trial support versus mouse-study hype. The gap between enthusiasm and evidence literacy is the product opportunity.

The product: a protocol tracker where every intervention carries an evidence grade (human RCTs → observational → animal-only), interaction warnings, cost-per-evidence-point analysis ('you spend $180/mo; $120 goes to grade-D interventions'), and progress tracking against biomarkers users already measure. Monetizes through subscription plus carefully disclosed affiliate revenue on the evidence-supported subset.

Longevity enthusiasts spend hundreds monthly on interventions with wildly varying evidence, tracked in spreadsheets that grade nothing. Existing apps either sell supplements (conflicted) or track habits generically.

Prosumer health optimizers (30–55, high income, podcast-fed) — the demographic already paying for Whoop, Oura, Function Health and $200/mo supplement stacks.

Longevity went mainstream 2023–25 (celebrity protocols, Netflix documentaries), and the backlash against evidence-free biohacking is creating demand for a trusted-broker product right now — the 'Wirecutter of longevity' slot is open.

Supplement-tracking apps (no evidence layer), Examine.com (reference, not tracker — closest analog and proof of willingness to pay), influencer protocol PDFs. The tracker+evidence combination is unclaimed.