Verbatim response from Claude
Best Lab Test Memberships for Longevity Tracking
Top Recommendation: Function Health
- Comprehensive panel of 100+ biomarkers for ~$499/year
- Co-founded by longevity physician Peter Attia (though he has since stepped back)
- Tracks hormones, metabolic markers, organ function, inflammation, and more
- Includes physician review and trend tracking over time
- Great value for the breadth of testing
Strong Alternatives
Lifeforce
- Physician-guided with personalized optimization plans
- Includes hormones, metabolic health, and performance markers
- More of a full health membership with coaching (~$549+/year)
Inside Tracker
- Strong data visualization and actionable recommendations
- Links biomarkers to lifestyle interventions
- Popular with athletes and biohackers
Marek Health
- Excellent for hormone optimization and performance
- Physician-supervised with flexible testing options
What to Look For
- Frequency of testing (quarterly vs. annually)
- Whether a physician reviews results
- Trend tracking over time
- Specific markers relevant to longevity (ApoB, insulin, IGF-1, hsCRP, homocysteine)
Bottom line: Function Health offers the best value for pure longevity biomarker breadth, while Lifeforce is better if you want guided optimization and coaching.