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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Gregory
Fast thorough testing
Response from Function HealthJul 30, 2026
Thank you for your review, Gregory! We're glad to hear you had a fast and thorough experience. We appreciate you taking the time to share your feedback and are grateful to have you as a member of Function Health.
customer D.
i LOVE that you diagnosed my MTHFR. i dont love that you tke so much blood - as an ameic - thats had! i dont love that my orthopedist told me your full body MRI was worthless and a weaste of money - which I agree because you diagnosed a torn labrum on my right which is actually on my left - an you didnt put right ot left for anything else for my hips or knees. i also dont likje that in allllll the prep emails and warnings before you pay AND in the actual MRI, NO ONE told me to hold my breath so I wasnt tested properly. Not once was that mentionerd. I mean you gave me a refund which I appreciate but I wanted the test. Also Manhattan is very far - why cant you do the full body on Long Island?
Response from Function HealthJul 23, 2026
Thank you for taking the time to share your detailed feedback. We appreciate your honesty and are glad there were aspects of your experience that you found valuable. We understand your concerns regarding the MRI experience and accessibility, and we’ve shared your feedback with our team. Input like yours helps us identify opportunities to improve the member experience.
Jackie
I'm very happy with the tests that have been performed so far and all the updates that I get with results and additional information. When I had a question, customer service chat was easy to use and quick to respond.
Response from Function HealthJul 29, 2026
Thank you for your kind words, Jackie! We're so glad to hear you've been happy with your testing experience and found the updates and additional information helpful. It's also wonderful to know our support team was able to answer your questions quickly. We truly appreciate you taking the time to share your experience.
Ben
The process was straightforward and efficient, offering affordable, comprehensive lab testing with clear and concise interpretations of the results.
Response from Function HealthJul 29, 2026
Thank you for your kind words, Ben! We're so glad to hear you found the process straightforward and efficient, and that the results were clear and easy to understand. We truly appreciate you taking the time to share your experience.
Corey
Couldn't love function more.
Response from Function HealthJul 29, 2026
Thank you for your wonderful feedback, Corey! We're so glad to hear you've had such a positive experience with Function. We truly appreciate you taking the time to share your kind words and your support.
Vicki C.
Easy to book appointment, app works well and clinicians notes are helpful
Response from Function HealthJul 29, 2026
Thank you for your kind words, Vicki! We're so glad to hear booking your lab visit was easy, the app has worked well for you, and you found the clinician notes helpful. We truly appreciate you taking the time to share your experience.
customer
Great experience! Will continue to do annually.
Response from Function HealthJul 29, 2026
Thank you for your kind words! We're so glad to hear you've had a great experience and that you plan to continue with Function each year. We truly appreciate you taking the time to share your feedback.
Maureen W.
I’ve been using Function since 2023 when it first became available. It’s been huge for my health journey to be able to track my data and make real changes due to results.
Response from Function HealthJul 29, 2026
Thank you for sharing your experience, Maureen! We're so glad to hear Function has been a valuable part of your experience since 2023 and that tracking your results over time has helped you make meaningful changes. We truly appreciate your continued support and thank you for taking the time to share your feedback.
