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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Cheryl W.
I was happy to see so many parameters that have never been tested before all in one place with a summary tying everything together for potential actionable next steps.
Response from Function HealthJul 27, 2026
Thank you for trusting us with your health. We’re thrilled you’re finding value in Function and that the insights have been meaningful. We’re glad you’re here.
George
This is year 3 for me and the Functional Health experience is getting better each year. Testing is easy to schedule and my lab did an excellent job taking the numerous test tubes of blood 😀! The results of my biomarkers starting being posted within a day of testing and got my full results and clinician report within 3 weeks. All the biomarker charts and Information associated with them is very informative and precise. I have also been using the app Ai Chat feature which is really helpful and informative regarding any health question I would ask it. I really like this. I do have problems seeing the results from my Fitbit air that I have paired with the functional health app. I can only see 3 of the Fitbit items and I’m sure there are more.
Response from Function HealthJul 27, 2026
Thank you for the kind words and for being a Function member for three years. We’re glad the experience continues to improve for you. If you're open to sharing more about the Fitbit integration, please contact us at [email protected]. We'd be happy to learn more.
Susan
It gives me information that my doctors have never even tried to explain.
Response from Function HealthJul 27, 2026
Thanks for spreading the word. Together, we’re building a community taking proactive steps toward better health.
customer
GREAT HONEST GOOD EXPLANTIONS
Response from Function HealthJul 27, 2026
To your health.
Denise
First draw and very pleased with the detailed results and insights. The exact information needed for me to know what is going on inside my body, so that I can continue my journey, striving for a long, healthy and active life.
Response from Function HealthJul 27, 2026
Thank you for the kind words. We’re glad the detailed results have helped you better understand your health. We’re glad you’re here.
Melissa
Signing up for Function Health is easily the best investment I’ve made in my personal wellness. This membership provides an incredibly comprehensive deep dive into over 100+ biomarkers. It tracks metrics that standard doctors rarely order, including detailed hormone, thyroid, metabolic, and heavy metal panels.The integration with Quest Diagnostics makes the actual blood draw seamless and efficient. Once the data comes back, the user dashboard presents everything clearly breaking down what each marker means and delivers personalized, easy-to-understand insights. Seeing historical trends over time makes it highly actionable to adjust diet, exercise, and supplement routines. It is incredibly empowering to finally own and understand my own health data. The best part is how the app bridges the gap between raw data and actionable lifestyle changes. For anyone who wants to take proactive control of their longevity and aging, this annual membership is worth every penny.
Response from Function HealthJul 27, 2026
Thank you for trusting us with your health. We’re thrilled you’re finding value in Function. We appreciate you taking the time to share your experience.
Sandra
I learned a great deal about my health that traditional lab work does not provide. I am thankful to Function Health for giving access to such important information. Thank you! My only critique is that when I made my second blood draw, the add-on tests I purchased were not included. The app did not explain how to include them in the same appointment. The process was not clear and an additional blood draw was needed. p.s. I want to personally thank Dr. Hyman! He has taught me so much and I am healthier today because of Function Health and his guidance from his books, podcasts, & newsletters!
Response from Function HealthJul 27, 2026
Thank you for trusting us with your health. We’re grateful that the insights have been meaningful, and we appreciate you bringing the add-on scheduling experience to our attention. It helps us continue improving for our members.
js
Function has given me specific data to change my life. I love how all the numbers are broken down, how encouraging and positive the information is, and the next steps that are laid out for me to improve my numbers and health.
Response from Function HealthJul 27, 2026
Thank you for trusting us with your health. We’re thrilled you’re finding value in Function and that the insights have helped you take meaningful steps toward your goals.
