Function Health has become part of a growing shift toward more proactive and data-driven healthcare. Instead of waiting for symptoms to appear or relying only on a traditional annual physical, Function Health is designed to give members a broader look at their health through extensive laboratory testing, ongoing tracking, clinician-reviewed results, and personalized health insights. The company currently offers more than 160 lab tests annually and says its testing can monitor biomarkers connected to areas such as heart health, hormones, thyroid function, nutrients, metabolic health, inflammation, autoimmunity, liver health, kidney health, and other areas. In this Function Health review, we look at how the membership works, what is included, where testing takes place, what members can expect from the platform, and the factors worth considering before signing up.
What Is Function Health?
Function Health is a health membership platform focused on preventive health monitoring and longitudinal tracking. The company says its mission is to help people understand their bodies and work toward living 100 healthy years. Its approach combines extensive laboratory testing with digital health information, explanations of results, personalized action plans, and repeat testing. Function is not itself a laboratory or medical provider; its website explains that laboratory and medical services are provided by independent third parties. The platform essentially brings different parts of the health-monitoring process together so members can access their testing information and health data through one account.
What Is Included With Function Health?
The standard Function membership currently includes 160+ lab tests per year. Function says members are tested twice annually, with the initial testing covering more than 100 tests and a follow-up test covering 60+ biomarkers approximately three to six months later. The testing menu covers a wide range of health categories rather than focusing only on standard cholesterol and blood-count measurements. Examples listed by Function include thyroid markers such as TSH and free T4, cardiovascular biomarkers such as ApoB and Lipoprotein(a), metabolic markers such as insulin, nutrient-related measurements including vitamin D and ferritin, hormone-related testing, inflammatory markers, and other biomarkers. The company also provides access to additional testing options that can be purchased separately.
How Does Function Health Testing Work?
The process begins after a person becomes a member. Function allows members to schedule their laboratory testing through the member platform. The company currently works with more than 2,000 Quest locations across the United States, although availability is subject to location. Function also says that at-home blood draws with a licensed specialist are available in certain areas. The company estimates that a typical lab visit takes about 15 minutes. Some members may require two visits for specific testing circumstances, including certain hormone testing situations and certain state-specific processing requirements.
Understanding the Results
A major part of the Function Health experience is what happens after testing. Instead of simply receiving a laboratory report and having to interpret every measurement independently, Function says its results are reviewed by clinicians and translated into explanations designed to make the information easier to understand. The platform also provides personalized health information and action-oriented insights. This can be useful for members who want to see their results in a broader context and follow changes over time. Function also allows members to upload previous laboratory results, helping create a more complete health history within the platform.
Tracking Health Over Time
Function Health places significant emphasis on longitudinal health tracking. The idea is that one laboratory test provides a snapshot, while repeated testing can show how certain biomarkers change. Function’s standard membership includes testing at least twice a year, allowing members to compare results from different points in time. This approach can be particularly relevant to people who are changing their diet, exercise habits, sleep routines, or other lifestyle factors and want to monitor associated changes in their health data. However, laboratory results should always be interpreted in the context of an individual’s overall health and discussed with a qualified healthcare professional when appropriate.
How Much Does Function Health Cost?
Function currently lists its membership at $365 per year, equivalent to approximately $1 per day. The company’s pricing page states that the membership includes 160+ lab tests annually, testing twice a year and on demand, clinician-reviewed results, personalized protocols, and access to additional services. Function also states that its membership is HSA/FSA eligible. Advanced services such as MRI and CT imaging and certain specialized tests are available separately, so the annual membership price should not be understood as covering every service available through the Function platform.
Where Can Members Get Tested?
Accessibility is one of the practical considerations when evaluating a health membership. Function says members can use more than 2,000 Quest Diagnostics locations across the country. The company’s FAQ currently says Function is available in 48 states and identifies Rhode Island, Hawaii, and Puerto Rico as locations where the service is not yet available. Function also offers at-home blood draws in selected areas, giving eligible members another way to complete testing.
Additional Health Services
Beyond the standard laboratory program, Function provides access to additional health services. Its website currently highlights MRI and CT imaging as well as access to specialized options such as the Galleri Multi-Cancer Detection Test and certain brain and aging-related testing. These additional services are separate from the standard laboratory membership and may have additional costs. This gives members the opportunity to explore more testing through the same overall platform while keeping the standard membership focused on its core laboratory program.
Who Can Join Function Health?
Function’s current FAQ states that people aged 18 and older can sign up, with an exception for people who are currently pregnant. Availability also depends on location. Because Function’s services involve laboratory and medical services delivered by independent providers, individuals should review the current eligibility requirements and service availability before joining. People with specific medical concerns should continue working with their own healthcare professionals rather than treating a membership platform as a replacement for medical care.
Final Verdict on Function Health
Function Health provides a structured approach to preventive health monitoring by combining extensive laboratory testing, repeat testing, digital health records, clinician-reviewed results, and personalized health information. Its current $365 annual membership includes 160+ laboratory tests and testing twice per year, with access to a large Quest Diagnostics network and additional services available separately. The platform may be particularly interesting to people who want to track a wider range of biomarkers and build a long-term record of their health information. At the same time, Function Health should be viewed as a health-monitoring service rather than a replacement for a personal physician, diagnosis, treatment, or emergency care. For anyone interested in taking a more data-focused approach to preventive health, Function Health offers a comprehensive membership model worth exploring.
