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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John H.
I have been very impressed by how comprehensive blood tests were as well clinical notes relating to the results. I would have also done the baseline MRI but I have to wait until next April after one year cancer free.
Response from Function HealthAug 9, 2026
Thank you for sharing, John. We’re glad you’ve been impressed with the breadth of testing and found your Clinician Notes valuable. We appreciate you being part of Function and wish you all the best.
Katie
So many different tests that are made easily understandable on the app! Great interface.
Response from Function HealthAug 9, 2026
Appreciate you sharing this, Katie. We’re glad the app makes your results easy to understand and that you’re enjoying the experience. Thanks for being part of Function!
AR
Testing is way too expensive in NYC and the clinician notes weren’t helpful. I ended up having to pay another longevity clinic to interpret them for me
Response from Function HealthJul 29, 2026
We’re sorry to hear the experience didn’t meet your expectations. If you'd like to discuss your concerns further, please reach out to [email protected]. We'd be happy to assist.
Victoria L.
Easy to book blood tests and getting quick results was helpful. I wish I had a doctor who would prescribe supplements and medication ms as needed.
Response from Function HealthAug 9, 2026
Thank you for sharing, Victoria. We’re glad scheduling was easy and that you received your results quickly. We also appreciate your feedback about the type of additional support you’d find valuable.
Irma
Excellent service and outstanding information
Response from Function HealthAug 9, 2026
Thank you for the kind words, Irma. We’re so glad you’ve found the service and information valuable. We appreciate you sharing your experience with us!
Gaby
Easy, to the point and very insightful
Response from Function HealthAug 2, 2026
We’re thrilled you’re finding value in Function. Thank you for sharing your experience.
Amy M.
Highly Recommended. I have used Function's bi-annual blood test workup for two years and find it an excellent service. I get a full panel with explanations about what each test is for, and if my score is above or below acceptable range they provide great information about why it matters, and suggestions for how to address it. Far more detailed information than I get from my MD.
Response from Function HealthAug 9, 2026
Amy, thank you for being part of Function for two years. We’re glad the detailed results and explanations have helped you better understand your health data and where to focus your attention. We truly appreciate your recommendation!
Col
Everything great except trying to print out a concise and clean report for my doctor and other results for myself. The data is great but some website designer could do a better job of making a summary doctor report more easily findable and concise and other data more printable so it doesn’t end up on a zillion pages.
Response from Function HealthJul 29, 2026
Thank you for sharing your experience. We’re pleased to hear the testing and insights were valuable. We appreciate your feedback about report formatting and printing, and it helps us continue improving Function.
