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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Robert L.
I’m very satisfied with the ease of the process and trust my local Quest office. I was impressed with the clinician notes and AI analysis of the test results.
Response from Function HealthJul 16, 2026
Thank you for your review, Robert. We're so glad to hear the process was easy and that you found your Clinician Notes and AI insights valuable.
Fonda
I now feel so informed and have a plan based on my functional blood test results. It is so empowering to design a dietary plan and exercise plan that aligns with what my body needs. In a time when getting proper medical care seems like an uphill battle… Function helps you understand your results, develop a plan, and preemptively make changes before health problems arrive. If you’re on the fence… make the move.
Response from Function HealthJul 16, 2026
Thank you for your thoughtful review, Fonda. We're so glad to hear your results and Clinician Notes helped you better understand your health and feel confident making informed lifestyle decisions.
Kristofer Y.
Fair price. Valuable tests. I choose.
Response from Function HealthJul 16, 2026
Thank you for your review, Kristofer. We're glad to hear you're finding value in your membership and appreciate you taking the time to share your feedback.
Chris B.
Thorough labs with great write ip for results. No need to beg Doctor office for certain labs such as ApoB. Im stopping review. I do not trust trustpilot.
Response from Function HealthJul 16, 2026
Thank you for your review, Chris. We're glad to hear you found the breadth of results and Clinician Notes valuable. We appreciate you taking the time to share your experience and your feedback.
Louise
quick service
Response from Function HealthJul 18, 2026
Thank you for your review, Louise. We're so glad to hear you had a quick experience. We appreciate you taking the time to share your feedback.
STARR G.
Hello! I would like to thank you immensely for your thorough review of my mid year Function blood tests. I so appreciate your promptness in reviewing it. The informative explanation of why each test matters, along with advice on further treatment is extremely helpful in knowing what I need to do to go forward with better health. I had this mid year test later then I wanted to, due to me treating SIBO and leaky gut. I’m so tired of taking so many supplements and it has become too expensive. I believe my heart health, diabetes,and fatty liver have not been addressed, or should I say put on the back burner due to suffering from SIBO for the past year. I’ve backed off from the supplements for the past few weeks as I need a break. Thank you for caring and Function Health is a company I tell others about. Hopefully, I will be able to afford renewing my membership. Blessings, Starr
Response from Function HealthJul 16, 2026
Thank you for your thoughtful review, Starr. We're so glad to hear you found your mid-year results, Clinician Notes, and explanations helpful. We truly appreciate you taking the time to share your experience and for recommending Function to others. Thank you for being part of the Function community, and we wish you all the best moving forward.
Ken Trager S.
Communication was prompt and clear. The results and explanations were very thorough. Finally the personalized summary was very complete and understandable. I would recommend it for anyone that desires a full blood work up. Only down side is be ready for add on test recommendations that can get quite pricey.
Response from Function HealthJul 16, 2026
Thank you for taking the time to share your experience, Ken. We're glad to hear you found the communication, results, Clinician Notes, and personalized summary clear and helpful. We also appreciate your feedback about add-on recommendations, and we'll share it with our team as we continue improving the member experience.
Steve
The amount of information and guidance I have received has been great! Getting my blood test was easy. So far, I am excited to receive all the input and now I will see what I can do with it all.
Response from Function HealthJul 16, 2026
Thank you for your review, Steve. We're so glad to hear your lab visit was easy and that you're finding your results and insights valuable.
