Function HealthFunction gives you access to 160+ yearly lab tests—5x more than a typical annual physical—covering everything from heart, hormones, thyroid, liver, kidneys, heavy metals, nutrients, inflammation, and more, plus actionable insights from top doctors. All results are stored in one place, making it easy to spot trends, track progress, and take action.
Function Health (functionhealth.com) has 3,039 customer reviews on Five Star Index, with an average rating of 4.4 out of 5.
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Lonnie
2nd year to be a customer. Very helpful on my health journey!
Response from Function HealthAug 2, 2026
Hi Lonnie, thank you for being part of the Function community for a second year! We're so glad to hear you've found your membership helpful. We appreciate you trusting Function with your health and look forward to continuing to support you.
Gail
I've been through the most stressful time in my life, my husband passed away but I did manage to follow recommendations: avoiding allergies in food sources, taking multiple vitamins, Ferrin, and Omega fatty supplements. I've seen improvement in my results and plan to continue program to achieve optimized health.
Response from Function HealthAug 2, 2026
Hi Gail, thank you for taking the time to share your experience. We're deeply sorry for your loss, and we appreciate you sharing part of your story with us. We're glad the insights have been helpful as you've tracked your progress over time, and we wish you all the best as you continue working toward your health goals.
Andy
What a great experience with Function from ordering the tests, scheduling, the lab draw and results were all seamless and easy. The results with clinical explanation were outstanding and easy to understand. What a great deal. I highly recommend for anyone concerned about their health or just wanting to get more in-depth labs on your body.
Response from Function HealthAug 2, 2026
Hi Andy, thank you for taking the time to share your experience. We're so glad to hear everything—from scheduling your appointment to receiving your results and clinician insights—was seamless and easy to understand. We appreciate your recommendation and thank you for trusting Function with your health.
DAVID
Easy to use and very informative.
Response from Function HealthAug 2, 2026
Hi David, thank you for your review! We're so glad to hear you found Function easy to use and informative. We appreciate you trusting Function with your health and being part of our community.
Jeriesha W.
I thought that the membership fee would include a consult with a clinician.
Response from Function HealthJul 24, 2026
We hear you and really appreciate your honesty. Our goal is to make Function as valuable and personalized as possible, and your perspective helps us get there.
Donna
My only suggestion is that Quest Diagnostics is made very clear on collection instructions. I asked specifically if the urine sample was to be clean catch. They said no. The results showed high bacteria which then begs the question is that a result of concern or simply a result of not being a clean catch sample. It would seem sensible that ALL urine samples would be clean catch. It was nice to have all tests done in one visit instead of two.
Response from Function HealthJul 26, 2026
Thank you for sharing your thoughtful feedback, Donna. We're so glad to hear you appreciated being able to complete your testing in a single visit. We also appreciate your suggestion about making urine collection instructions clearer. Feedback like yours helps us identify opportunities to improve the member experience, and we're grateful you took the time to share it.
Rosa S.
I appreciate the information, especially being able to compare out of range findings at the six-month recheck. After two annual tests, I think I will take a break for a couple of years, but it’s a great resource to go back to.
Response from Function HealthAug 2, 2026
Hi Rosa, thank you for taking the time to share your experience. We're so glad to hear you've found value in tracking your results over time and using those insights to monitor your progress. We appreciate you trusting Function with your health, and we'll be here whenever you're ready to return.
Robin
My Lab results came to me pretty fast, and they gave detailed lab results! I appreciate there help and the results they gave me!
Response from Function HealthAug 2, 2026
Hi Robin, thank you for taking the time to share your experience. We're so glad to hear you received your results quickly and found the detailed insights helpful. We appreciate you trusting Function with your health.
