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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Meh
Too generic. I could have gotten all these tests done at no cost through my primary and had a personal discussion .
Response from Function HealthJul 24, 2026
Thank you for taking the time to share your feedback. We're sorry to hear that your experience didn't meet your expectations. We appreciate your honesty, and your comments help us identify where we can improve. Thank you for sharing your perspective.
Kirk
With follow up blood tests it was easy for me to see how my lifestyle changes and added supplementations have affected my numbers. Now I know what is happening, I am not guessing. Also, the blood tests are so much more relevant and meaningful than the typical blood tests you get for your annual wellness test. I have control over my health. Exciting!
Response from Function HealthAug 2, 2026
Thank you for taking the time to share your experience. We're so glad to hear the follow-up testing helped you track the impact of your lifestyle changes and that the insights have given you greater confidence in understanding your health over time. We appreciate you trusting Function with your health.
Ali
I like the 2 blood tests per year and how much more you learn with their deeper dive into it. And yes, I have learned my thyroid is over active and thus I never would have known that without Function Health.
Response from Function HealthAug 2, 2026
Thank you for taking the time to share your experience. We're so glad to hear you've found value in the twice-yearly testing and the deeper insights provided through your membership. It's wonderful to know the information has helped you better understand your health. We appreciate you trusting Function with your health.
Melissa
Each measurement is explained in detail as well as your results. Very eye-opening for me & includes helpful nutrition & supplement options. Will continue annually.
Response from Function HealthAug 2, 2026
Thank you for taking the time to share your experience, Melissa. We're so glad to hear you found the explanations detailed and informative, and that the insights have been valuable to you. We appreciate your continued trust in Function and look forward to supporting you with your annual testing.
Erin
I can't say enough about Function Health. The customer service has been amazing and this has been a life saving experience for me. Thank you for creating this system.
Response from Function HealthAug 2, 2026
Thank you for taking the time to share your experience, Erin. We're truly grateful for your kind words. We're so glad to hear our team was able to support you and that your experience has been so meaningful. Thank you for trusting Function with your health.
Beth
Very in depth bio marker testing! They also tell you what it means, and how to improve that bio marker! Super informative!
Response from Function HealthAug 2, 2026
Thank you for taking the time to share your experience, Beth. We're so glad to hear you found the biomarker insights detailed, informative, and easy to understand. We appreciate you trusting Function with your health.
Lorilyn
Thorough, personalized, very in depth information and analysis.bery worth the price.
Response from Function HealthAug 2, 2026
Thank you for taking the time to share your experience, Lorilyn. We're so glad to hear you found the insights personalized, detailed, and worthwhile. We appreciate your kind words and thank you for trusting Function with your health.
Trevor
Its still a little too early to be doing a review. I will admit, that getting signed up and scheduling my first round of blood tests was very easy and the results seem to be very thorough. I am meeting with a Functional Health Practitioner to help me understand all the results. I think this will be very helpful.
Response from Function HealthJul 26, 2026
Thank you for sharing your experience, Trevor. We're so glad to hear the sign-up process, scheduling, and your first lab visit went smoothly, and that you've found your results thorough so far. We appreciate you taking the time to share your early impressions and hope your upcoming appointment helps you get even more value from your results.
