P
About
Function Health is a comprehensive preventive health membership that gives individuals unprecedented insight into their biology. For $365 per year—just $1 per day—members access over 160 lab tests conducted twice annually at more than 2,000 Quest Diagnostics locations across the United States. The platform covers critical biomarker categories including hormones and thyroid, heart and metabolic health, cancer risk markers (including a GRAIL multi-cancer early detection test), nutritional panels, and toxin exposure such as lead, mercury, and mold. Results are analyzed using AI informed by thousands of hours of physician-curated research, delivering clear and actionable personalized health protocols rather than raw numbers alone. Function tracks each member's results longitudinally, establishing a long-term health baseline so changes over time are immediately visible. The platform can detect early indicators for conditions ranging from diabetes and coronary artery disease to Alzheimer's disease, various cancers, autoimmune disorders, and heavy metal toxicity. Function is HSA/FSA eligible and offers employer plans for corporate wellness programs. It is designed for health-conscious individuals, executives, athletes, and anyone looking to shift from reactive to proactive healthcare. With endorsements from leading physicians like Dr. Mark Hyman, Function represents a new paradigm in personalized preventive medicine driven by AI and comprehensive diagnostic data.
Key Features
- 160+ Comprehensive Lab Tests: Annual testing covering 160+ biomarkers across hormones, thyroid, heart health, metabolic function, cancer risk, toxin exposure, and more—detecting indicators for 1,000+ conditions.
- AI-Powered Personalized Protocols: Results are analyzed using AI trained on thousands of hours of medical research to generate individualized, actionable health protocols tailored to each member's specific biomarkers.
- Lifetime Biomarker Tracking: Every result is stored and tracked longitudinally, allowing members to monitor how key health metrics evolve year over year and establish a definitive long-term health baseline.
- Doctor-Explained Results: Lab results are translated into plain-language explanations curated by top physicians, making complex biomarker data understandable and immediately actionable.
- Nationwide Lab Access: Blood draws are conducted at 2,000+ Quest Diagnostics locations across the US, making testing convenient regardless of location.
Use Cases
- Proactive health monitoring for individuals who want to detect disease risk factors before symptoms appear
- Corporate wellness programs leveraging Function's employer plans to improve workforce health outcomes and reduce long-term healthcare costs
- Athletes and biohackers tracking performance-related biomarkers such as hormones, omega-3 levels, and metabolic markers to optimize their physiology
- Individuals with a family history of chronic disease monitoring early indicators of conditions like diabetes, heart disease, thyroid disorders, or cancer
- Annual health optimization for executives and health-conscious adults seeking a comprehensive, data-driven alternative to basic annual physicals
Pros
- Exceptional Value: At $365/year ($1/day), Function provides 160+ lab tests and AI-powered health intelligence that would cost thousands out-of-pocket through traditional healthcare channels.
- Proactive Disease Detection: Detects early biomarkers for 1,000+ conditions—including cancers, autoimmune diseases, and metabolic disorders—before symptoms appear, enabling preventive action.
- Lifetime Health Record: All results are tracked longitudinally in one secure place, providing a complete picture of health trajectory and enabling trend-based insights over time.
- HSA/FSA Eligible: Membership costs can be paid with pre-tax HSA or FSA dollars, effectively reducing the real out-of-pocket expense for eligible members.
Cons
- Requires In-Person Lab Visit: Unlike fully digital health tools, Function requires a physical blood draw at a Quest Diagnostics location, which may be inconvenient for some users.
- US-Only Availability: The service is currently limited to the United States due to its reliance on the Quest Diagnostics lab network, excluding international users.
- Annual Subscription Only: The membership model requires a yearly commitment, which may not suit those seeking one-time or on-demand testing options.
Frequently Asked Questions
What does Function Health test for?
Function tests 160+ biomarkers spanning hormones and thyroid, heart and metabolic health, cancer risk (including a GRAIL multi-cancer early detection test), nutritional panels, toxin exposure (lead, mercury, mold), and autoimmune indicators—covering early detection for 1,000+ conditions.
How much does Function Health cost?
Function costs $365 per year ($1 per day). This includes two rounds of lab testing annually, AI-powered result analysis, personalized health protocols, and lifetime biomarker tracking. The membership is also HSA/FSA eligible.
Where do I get my blood drawn?
Function partners with Quest Diagnostics, giving members access to over 2,000 lab locations across the United States to conveniently schedule their blood draws.
How does Function use AI to analyze results?
Function's AI platform cross-references your biomarkers against thousands of hours of medical research and physician-curated protocols to deliver personalized, actionable health recommendations—going far beyond raw lab numbers.
Does Function Health replace a primary care doctor?
No. Function is designed to complement, not replace, existing healthcare. It provides deeper diagnostic data and personalized insights that members can share with their physician to make more informed, proactive healthcare decisions.
