# Healthy Aging Atlas > Evidence-based supplement comparisons for longevity. Science-backed "Best [Supplement] for [Goal]" pages that rank supplements by clinical evidence quality, price-per-serving, third-party testing, and real user reviews. Public machine-readable surfaces expose published pages only. Healthy Aging Atlas publishes science-backed comparison pages. Each page ranks 4–8 supplements by clinical evidence quality, price-per-serving, third-party testing, and user reviews, with every health claim cross-referenced against peer-reviewed clinical literature. ## Key Pages - [Homepage](https://healthyagingatlas.com/): site overview and entry point - [Supplement directory](https://healthyagingatlas.com/supplements/): all supplements, evidence-graded - [Compare supplements](https://healthyagingatlas.com/compare/): head-to-head comparisons by category - [Research hub](https://healthyagingatlas.com/research/): methodology and original datasets - [Evidence scorecard](https://healthyagingatlas.com/evidence-scorecard/): how each supplement is graded - [Methodology](https://healthyagingatlas.com/methodology/): evidence grading and ranking criteria - [Editorial policy](https://healthyagingatlas.com/editorial/): standards and review process - [About](https://healthyagingatlas.com/about/): mission and medical review policy - [Trust rankings](https://healthyagingatlas.com/trust/): certification-filtered product trust scores ## Supplements Covered - [NMN (Nicotinamide Mononucleotide)](https://healthyagingatlas.com/supplements/nmn/): cellular energy, anti-aging - [Collagen](https://healthyagingatlas.com/supplements/collagen/): skin health, joint support, hair growth - [Omega-3](https://healthyagingatlas.com/supplements/omega-3/): brain health, heart health, inflammation - [CoQ10 (Ubiquinol)](https://healthyagingatlas.com/supplements/coq10/): heart health, energy production - [Resveratrol](https://healthyagingatlas.com/supplements/resveratrol/): cellular aging, sirtuin activation - [Spermidine](https://healthyagingatlas.com/supplements/spermidine/): autophagy, cellular renewal - [Magnesium](https://healthyagingatlas.com/supplements/magnesium/): sleep, muscle function, stress - [Creatine](https://healthyagingatlas.com/supplements/creatine/): muscle preservation, cognition ## Health Goals - [Sleep](https://healthyagingatlas.com/goals/sleep/): supplements ranked for sleep quality - [Brain Health](https://healthyagingatlas.com/goals/brain-health/): cognition and memory support - [Heart Health](https://healthyagingatlas.com/goals/heart-health/): cardiovascular support - [Skin Health](https://healthyagingatlas.com/goals/skin-health/): skin aging and elasticity - [Joint Health](https://healthyagingatlas.com/goals/joint-health/): cartilage and joint comfort - [Immune Support](https://healthyagingatlas.com/goals/immune-support/): immune function and resilience - [Gut Health](https://healthyagingatlas.com/goals/gut-health/): microbiome and digestion - [Longevity](https://healthyagingatlas.com/goals/longevity/): cellular aging and healthspan ## Demographics - [Women Over 50](https://healthyagingatlas.com/demographics/women-over-50/): life-stage supplement rankings - [Men Over 40](https://healthyagingatlas.com/demographics/men-over-40/): life-stage supplement rankings - [Athletes](https://healthyagingatlas.com/demographics/athletes/): performance and recovery - [Menopause Support](https://healthyagingatlas.com/demographics/menopause-support/): perimenopause and menopause ## Machine-Readable Markdown Every published leaf page is available as clean markdown at the same URL with an `index.md` suffix — the preferred format for AI crawlers (strips UI noise, parses 3–4× faster than HTML). Pattern: `/supplements/[supplement]/for-[goal]/index.md` and `/comparisons/[slug]/index.md`. Draft/noindex pages return 404 on this endpoint. - [Example leaf markdown — Magnesium for Sleep](https://healthyagingatlas.com/supplements/magnesium/for-sleep/index.md): clean markdown of a single comparison page - [Full corpus (llms-full.txt)](https://healthyagingatlas.com/llms-full.txt): single-file concatenation of every published page in markdown (~3 MB, rebuilt daily; per-page sections separated by `---`, each starting with a `source:` URL for citation) ## Original Research Datasets Citable original-data research assets, published without affiliate links on the report pages. - [Evidence Density Map 2026 — report](https://healthyagingatlas.com/research/evidence-density-map-2026/): the pipeline matched no RCT for 22% of 2,156 cleaned supplement-goal pairings; this is an upper bound containing known sampling, keyword, and alias gaps, not a count of pairings with no published trials - [Evidence Density Map 2026 — markdown](https://healthyagingatlas.com/research/evidence-density-map-2026/index.md): machine-readable report - [Evidence Density Map 2026 — methods](https://healthyagingatlas.com/research/evidence-density-map-2026/methods/): dataset construction and cleanup rules; cite this URL for methodology - [Evidence Density Map 2026 — methods markdown](https://healthyagingatlas.com/research/evidence-density-map-2026/methods/index.md): machine-readable methods - [Evidence Density Map 2026 — press kit / citation facts](https://healthyagingatlas.com/research/evidence-density-map-2026/citation-facts/): cite-ready facts - [Evidence Density Map 2026 — CSV dataset](https://healthyagingatlas.com/downloads/evidence-density-map-2026.csv): raw data ## Original Research Datasets Healthy Aging Atlas publishes citable original-data research assets without affiliate links on the report pages. ### Supplement Evidence Density Map 2026 - Report: https://healthyagingatlas.com/research/evidence-density-map-2026/ - Markdown: https://healthyagingatlas.com/research/evidence-density-map-2026/index.md - Methods: https://healthyagingatlas.com/research/evidence-density-map-2026/methods/ - Methods markdown: https://healthyagingatlas.com/research/evidence-density-map-2026/methods/index.md - Press kit / citation facts: https://healthyagingatlas.com/research/evidence-density-map-2026/citation-facts/ - Press kit markdown: https://healthyagingatlas.com/research/evidence-density-map-2026/citation-facts/index.md - CSV: https://healthyagingatlas.com/downloads/evidence-density-map-2026.csv - Headline: the HAA DEC-068 v2 pipeline matched no RCT for 22% of 2,156 cleaned supplement-goal pairings. Treat this as an upper bound containing known sampling, keyword, and alias gaps. - Citation target: cite the report URL for the headline finding and the methods URL for dataset construction and cleanup rules. ## API Access Public API responses default to published/indexable pages only. - [Supplement list](https://healthyagingatlas.com/api/supplements): all supplements - [Supplement detail](https://healthyagingatlas.com/api/supplements/nmn): single supplement record (`/api/supplements/[slug]`) - [Data moat summary](https://healthyagingatlas.com/api/data-moat): aggregate data overview - [Data moat products](https://healthyagingatlas.com/api/data-moat/products): product records - [Trust rankings](https://healthyagingatlas.com/api/data-moat/trust): certification-filtered trust scores (`?pageContext=general|glp1_support|menopause`) ## Public Ranking Pages - [General trust rankings](https://healthyagingatlas.com/trust/): site-wide product trust scores - [GLP-1 support trust rankings](https://healthyagingatlas.com/trust/glp1-support/): GLP-1 context - [Menopause trust rankings](https://healthyagingatlas.com/trust/menopause/): menopause context ## MCP Server (AI Agent Access) A public evidence-first MCP server for AI agents, Cursor, Claude Desktop, and other compatible clients. Transport: Streamable HTTP through the official TypeScript SDK; current protocol version 2025-11-25, with compatible negotiation for 2025-06-18, 2025-03-26, 2024-11-05, and 2024-10-07. Public access is limited to 100 requests per 24-hour counter window; provisioned keyed tiers are available via partnership. Evidence tools: `search_evidence`, `get_evidence_summary`, `get_citations`, `query_evidence_map`, and `compare_evidence`. Evidence responses contain `outputSchema`, matching `structuredContent` and JSON text, clean source URLs, and no affiliate links. Citation metadata is emitted only after the repository PubMed audit passes with zero flags; mismatched, conflicting, or unverifiable citations are withheld and counted, and stored finding prose is withheld without claim-level verification. Compatible commerce tools remain separately labeled: `search_supplements`, `get_product`, `compare_supplements`, `get_price_history`, and `recommend_for_goal`; those responses may contain affiliate purchase URLs. - [MCP endpoint](https://healthyagingatlas.com/api/mcp): JSON-RPC 2.0 over HTTP POST - [MCP discovery manifest](https://healthyagingatlas.com/.well-known/mcp.json): server capabilities ## Contact - [Website](https://healthyagingatlas.com/): healthyagingatlas.com - Email: hello@healthyagingatlas.com