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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Peter S.
Quick & easy. Gave me alot of good information! Couple of things I want to follow-up on wi th my doctor. Reaffirmed how I am doing. Thanks
Response from Function HealthJul 18, 2026
Thank you for your review, Peter. We're so glad to hear the process was quick and easy and that you found the information helpful. It's great to know your results have given you useful topics to discuss with your doctor. We appreciate you taking the time to share your experience with Function.
Juan M.
Way more in-depth view of my health compare to the regular annual check ups with my primary. Results came fast and the amount of detail and explanation provided for every biomarker is just fenomenal. But even better is the added benefits like personalize protocol, nutrition, workout plan and more that is included in the membership. Love it!
Response from Function HealthJul 18, 2026
Thank you for your thoughtful review, Juan. We're so glad to hear you found your results detailed, easy to understand, and valuable. It's wonderful to know you're enjoying the additional features included with your membership as well. We truly appreciate you taking the time to share your experience with Function.
Patty G.
In December/25 I started Function Health and had my blood tested. This was the first time in my life that I have had such a complete profile of biomarkers and because of this I have caught something in my liver at a very early stage. I don't know if this had been caught if not for FH. I am so grateful to them for this and I will probably continue to make sure that my health continues in a positive way. When you think about what you are getting for their annual fee, it is not too much money and totally worth it. The clinic notes are comprehensive and sometimes overwhelming so, make sure to share them with your personal doctor.
Response from Function HealthJul 18, 2026
Thank you for sharing your experience, Patty. We're so glad to hear your results prompted you to follow up with your doctor and that you found the information valuable. It's wonderful to know you've found the results and Clinician Notes helpful, and we appreciate you encouraging others to review them with their healthcare provider. Thank you for taking the time to share your experience with Function.
Scott Z.
Everything went great. Responsive, timely, thorough.
Response from Function HealthJul 18, 2026
Thank you for your review, Scott. We're so glad to hear everything went smoothly and that you found the experience responsive, timely, and thorough. We appreciate you taking the time to share your experience with Function.
Kevin
Easy to set up appointments, give blood and received quick feedback and guidance.
Response from Function HealthJul 18, 2026
Thank you for your review, Kevin. We're so glad to hear scheduling was easy, your lab visit went smoothly, and you received your results and guidance quickly. We appreciate you taking the time to share your experience with Function.
James
Gave me a lot of data, a cool clinical review, and is allowing me to take actions to not just "be in range", but to be optimal.
Response from Function HealthJul 18, 2026
Thank you for your review, James. We're so glad to hear you found your results, Clinician Notes, and insights helpful in making informed decisions about your health. We appreciate you taking the time to share your experience with Function.
Patti
I could not be more thrilled with Function! Great service overall and incredible value in my opinion. Such an in-depth look into my health and I will absolutely continue to use Function on an annual basis!
Response from Function HealthJul 18, 2026
Thank you for your wonderful review, Patti. We're so glad to hear you've had such a positive experience and found great value in your Function membership. We truly appreciate your continued trust and look forward to supporting you again in the future. Thank you for taking the time to share your experience.
Janet
This is a great service for people that are self-pay and on the journey to healthy living! I have more information to give my Dr. without spending thousands of dollars that I would have spent if I had them done at their office. Also, there is not the dread of opening the lab bill to see how much we owe!
Response from Function HealthJul 18, 2026
Thank you for your thoughtful review, Janet. We're so glad to hear you've found value in your Function membership and that the experience has helped you have more informed conversations with your doctor. We appreciate your kind words and thank you for taking the time to share your experience.
