Longevity clinic
InsideTracker
Last updated 2026-05-30· 1 min read
Reviewed by the Ultimate Longevity Bible editorial team. Educational reference — not medical advice. See disclaimer.
What it does
InsideTracker pioneered the consumer-biomarker model now common elsewhere (Function Health, Lifeforce). Blood is drawn at a partner lab, results returned in a software dashboard with personalised nutrition, supplement, and lifestyle recommendations. Optional add-ons include DNA testing, "InnerAge" biological-age estimate, and wearable integrations.
Strengths
- Long track record (founded 2011).
- Strong UI and longitudinal tracking.
- Athlete-friendly with performance markers (cortisol, ferritin, vit D, testosterone).
- Integrates with Garmin, Apple Health, Fitbit data.
Trade-offs
- Recommendations are algorithmic; lack of physician oversight unless you add a separate concierge.
- "Optimal range" markings are tighter than clinical reference ranges, driving the perception that "everything needs fixing."
- Supplement upsells embedded in recommendations.
- DTC model means you handle abnormal results yourself or escalate to your own physician.
Compare
Function Health offers a larger panel at a lower per-marker cost. InsideTracker has better software for trend tracking and athlete- specific use.
- Function Health vs InsideTracker — Comparison.
- Best Biomarkers to Track in Your 40s — Best-of guide.
- Best High-Leverage Tests for Longevity — Best-of guide.
- How Not to Die — Michael Greger (2015) — Book.
- Inflammaging (Concept) — Concept.
Related entries
Function Health, Lifeforce, Modern Age, Biological vs chronological age.