There is a big difference between knowing that you are healthy and actually knowing what is happening with your health.
You can feel perfectly fine, exercise regularly, eat well, and still have questions about things you cannot see or feel. How are your nutrient levels? What does your cardiovascular picture look like beyond a standard cholesterol test? How are your metabolic markers changing? What about hormones, thyroid function, inflammation, or environmental exposures?
This is exactly the kind of gap Function Health is designed to address.
Rather than treating health testing as something you do only when a doctor asks for it, Function gives members a broader way to understand their health and follow it over time. The membership combines extensive laboratory testing, clinician-reviewed results, personalized insights, repeat testing, and access to advanced add-on tests.
The result is a service that makes sense for anyone who wants to be more informed about their own health and would rather have a detailed picture to work with than rely on a handful of routine measurements.
The Function Membership Is the Place to Start
Function keeps its main offering refreshingly straightforward. There is one core membership, and it gives members access to a broad testing program rather than forcing them to choose between different levels of coverage.
The membership includes testing across major health categories, including heart health, hormones, thyroid, nutrients, metabolism, autoimmunity, inflammation, liver health, kidney health, environmental toxins, blood, pancreas, bone health, and other areas. Function says the testing is selected by its medical team to provide a broader view of current and future health.
That breadth is one of the biggest reasons to consider Function.
Instead of going into the process already deciding that you only want to look at one particular area, you get a much wider starting point. You can then see which parts of your results deserve more attention and discuss them with your healthcare provider.
For someone who enjoys being proactive, that is a much more interesting way to approach health testing.
The Heart Category Goes Well Beyond the Basics
Heart health is a good example of how Function approaches testing differently.
A basic health check might leave you looking at familiar cholesterol measurements and little else. Function includes a wider collection of cardiovascular biomarkers, including ApoB, Lipoprotein A, HDL-related markers, triglycerides, and high-sensitivity C-reactive protein.
That additional information can give you and your healthcare provider more to work with when discussing cardiovascular health.
It is especially appealing if you already take an interest in exercise, nutrition, fitness, or long-term wellbeing. Rather than relying entirely on general recommendations, you can have your own laboratory information as part of the conversation.
And because Function tests members again, the value is not limited to seeing where things stand today. You can return to the results later and see how your personal health data has changed.
Hormone and Fertility Testing Adds a Personal Touch
Hormones are another area where Function goes considerably deeper than a standard checkup.
Its testing catalogue includes hormone-related biomarkers such as testosterone, estradiol, follicle-stimulating hormone, luteinizing hormone, prolactin, sex hormone-binding globulin, DHEA-S, and other fertility-related markers. The available testing differs across the female and male health categories.
For someone interested in understanding their body more closely, this is a useful addition.
Hormones can be relevant to many aspects of health and wellbeing, and having personal laboratory data gives you something much more concrete to discuss with a medical professional.
Function also offers additional hormone testing through its add-on catalogue, so members who want to explore this area further have options beyond the core membership.
Thyroid Testing Is Part of the Bigger Picture
Thyroid health is another area included in Function’s broader testing approach.
The membership includes thyroid-related testing alongside hormone, metabolic, nutrient, and other health categories.
This makes sense because health is interconnected. You do not experience your body as a collection of separate laboratory categories, so having information from multiple areas can provide a more useful overall picture.
For anyone who wants to keep track of their health rather than only investigate it when something goes wrong, having thyroid testing included within a broader membership is another reason Function stands out.
Autoimmunity and Inflammation Are Included Too
Function also covers areas that may receive less attention during a basic health check.
The testing catalogue includes autoimmune-related testing such as ANA screening as well as inflammation markers including high-sensitivity C-reactive protein.
This is part of what gives the membership its comprehensive feel.
You are not purchasing a service designed around one particular health trend. You are getting access to information across many different areas, which can then be reviewed together.
That is particularly useful for people who like to have a fuller understanding of their health data before deciding what deserves further attention.
Liver, Kidney, Blood and Pancreatic Health
Function’s testing extends into several major organ systems as well.
The catalogue includes liver markers such as ALT, AST, alkaline phosphatase, GGT, albumin, bilirubin, and other related measurements. Kidney testing includes markers such as creatinine, blood urea nitrogen, urine measurements, and other indicators. Blood testing covers areas such as hemoglobin, hematocrit, red blood cells, white blood cells, and platelets.
Having these categories included alongside heart, metabolic, hormone, and nutrient testing is what makes the membership feel genuinely broad.
You are not simply checking one isolated part of your body. You are building a more complete collection of health information.
For someone who wants to maintain a long-term record and follow changes, that can be especially appealing.
Environmental Toxin Testing Gives You More to Explore
Function also looks at environmental exposures.
Lead and mercury testing are included in the membership, while additional options cover areas such as BPA exposure, PFAS, and extended heavy-metal testing.
This category is interesting because it goes beyond the health topics most people immediately think about.
If you are someone who likes to explore the details behind your health, having environmental exposure testing available gives you another avenue to investigate with your healthcare provider.
And because some of these tests are optional add-ons, you can decide whether they are relevant to your particular interests or circumstances.
Biological Age Is Another Interesting Category
Function also includes biological age testing within its health categories.
This is a particularly interesting feature for people who are interested in longevity and tracking how their health changes over time.
It adds another dimension to the information you receive, especially when combined with the broader testing categories.
Rather than looking at health solely through individual biomarkers, Function gives members the opportunity to explore broader measures as well.
Add-On Tests Let You Customize the Experience
The core membership is broad, but Function also gives members access to optional add-on tests.
The current catalogue includes specialized options such as the Galleri Multi-Cancer Test, extended hormone testing, environmental toxin testing, brain-related testing, allergy and sensitivity testing, sexual health testing, and other targeted options.
This is useful because not everyone wants the same additional information.
You can start with the main membership and then choose add-ons according to your own interests, health goals, or conversations with your healthcare provider.
It means you are not paying for a huge package of specialized tests that you may not want. Instead, the core membership gives you the foundation and the add-ons allow you to go further when you want to.
Function’s Current Membership Offer
Function has also made its core membership more accessible.
The company’s current pricing page lists the membership at its current annual rate and includes the broad laboratory testing program, repeat testing, clinician-reviewed insights, personalized protocols, and access to additional MRI and CT services.
Function has also announced that its membership is now offered at the lower annual price of $365, down from its previous price, with access to its comprehensive testing and additional features.
The membership is also HSA/FSA eligible subject to the member’s individual plan, and Function operates without insurance.
Since offers and pricing can change, checking the official Function website before joining is always the best way to see the current deal.
Why Function Health Is Worth Buying
The biggest reason to choose Function is that it brings together several things that are usually separated.
You get extensive laboratory testing. You get repeat testing. You get clinician-reviewed results. You get personalized insights. You get optional advanced testing. And you get a place to keep track of your health information over time.
That combination makes the membership particularly attractive to someone who wants to take a proactive approach to health.
It is also useful if you enjoy having data to work with. Instead of relying entirely on how you feel or on general wellness advice, you have your own laboratory information to discuss with your healthcare provider.
And because Function tests across so many categories, you do not have to limit yourself to one particular health interest.
Final Thoughts
Function Health is a strong option for anyone who has ever looked at a routine checkup and thought, “I want to know more.”
The membership brings together extensive testing across heart health, hormones, thyroid, nutrients, metabolism, autoimmunity, inflammation, liver, kidneys, blood, environmental toxins, biological age, and many other categories.
But the real value comes from what happens after the testing.
Results are reviewed by clinicians, insights are provided to help members understand what matters, personalized protocols connect the data with potential action, and repeat testing lets you follow changes over time.
Then, when you want to investigate something more deeply, Function gives members access to add-ons such as advanced cancer screening, hormone testing, environmental exposure testing, brain-related tests, allergy testing, and MRI and CT scans.
With the current membership offer making the service more accessible, it is a particularly good time to explore what Function includes and decide whether it fits the way you want to approach your health.
If you are someone who prefers to be informed rather than wait for a reason to start paying attention, Function Health is worth a closer look. Explore the membership, see what is included, check the current offer, and start building a more detailed picture of your health with information you can actually follow over time.