Kristin E.
Easy and so informative
Easy and so informative! If you’re not a doctor person, this the way to go. Also if you like to research and learn. I highly recommend this service!

Function 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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Kristin E.
Easy and so informative! If you’re not a doctor person, this the way to go. Also if you like to research and learn. I highly recommend this service!
Mehdi D.
Love the dashboard and the insight. i feel i am in control. Fast turn around, quick data, explainations
Sabri
I think the price for the basic test with 100+ markers is a no brainer. I think the add ons can be a bit abusive. Would I recommend this service, absolutely, and I have to others. I'm now in a situation where I need a few of the additional tests but cannot or will not pay the prices from Function Health. Additionally it is helpful to have the clinician notes at the end but with the ranges conflicting with other studies the notes were not much use to me. Specifically on cholesterol the ranges are a controversial subject.
Anne H.
Expensive testing given that the clinician's summary provided no information that I couldn't have gotten using Google.
Response from Function HealthOct 10, 2025
Hi Anne. Thank you for your feedback. We’re sorry to hear the Clinician Summary didn’t provide the level of value you expected. Each summary is written and reviewed by licensed MDs and NPs vetted by Dr. Hyman, trained to interpret Function data, and designed to offer personalized insights based on your unique results—beyond what general information online can provide. That said, Function isn’t a medical provider, so we recommend sharing your results with your primary care physician for further discussion and next steps. We appreciate your input and will share it with our team to continue improving the experience.
Celeste B.
Expanding the labs would be helpful so I do not have to drive 1000 miles, but the information is verry helpful and insightful. I think that last years insights were more helpful than this year.
Patricia H.
I have never received such a comprehensive and insightful set of lab results before. Function Health provided an exceptional level of detail that allowed me to truly understand my overall health. In contrast, my past experiences with traditional medical care have often felt incomplete—tests are limited, and feedback is usually summarized with “you’re within normal parameters,” without any guidance on how to improve or optimize my results. Function Health not only revealed areas that needed attention but also empowered me with actionable information to take charge of my well-being. I’m sincerely grateful for the clarity and care they provide.
Valerie F. E.
I have done my first 6 month lab testing but I was very impressed with the tests run. The detailed intake on supplements and scripts I take right now I felt was integral to providing me with a thorough diagnosis/suggestions on where I could improve. Just loved I was 7 years younger than my actual age. It encouraged me that I am on the right path with my wellness approach!
Response from Function HealthJan 2, 2026
Thank you for sharing your experience! We’re glad the testing and detailed intake were helpful, and congratulations on your Function age result — it’s great to hear it encouraged you on your wellness journey.
Sheri
As a woman and a nurse, I feel Function Health services are exactly what I needed especially since I am over 60 and want to have control over my health and wellness as I age. This platform fits perfectly with my active lifestyle.