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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User
Easy scheduling of labs = awesome Notifications when labs are ready = awesome New ChatGPT = Good Overall info = Good The lack of formatting for results and clinician reports = bad
Response from Function HealthSep 2, 2026
Thank you for sharing your feedback. We’re glad you’ve found scheduling and result notifications easy, and we appreciate your feedback about the formatting of results and Clinician Notes.
Elizabeth W.
Thanks! Lots of good information. Always trying to be healthy.
Response from Function HealthAug 22, 2026
Thank you for sharing, Elizabeth. We’re so glad you’re finding the information helpful. We appreciate you being part of Function.
Jeff D.
The only “complaint” is that there does not seem to be a seamless way to get results to my PCP. On the other hand, being able to connect to ChatGPT was phenomenal, the most in-depth “doctor” visit I’ve ever had. Extremely satisfied.
Response from Function HealthAug 22, 2026
Thank you for sharing your experience, Jeff. We’re glad you’ve found Function so valuable, and we appreciate your feedback about making it easier to share results with your PCP.
Michelle
I think the testing and comments are really good. I don't want to be asked every time if I want 25 more tests. I would like Function tests to link with other Quest tests. And my experience with changing the date of an add-on test was ot great- as I had to do it through Function customer service. I think your add ons should decrease in cost the more you add on. I do believe the service itself is fantastic - and I appreciate that the price has gone down.
Response from Function HealthAug 22, 2026
Thank you for sharing your experience, Michelle. We’re glad you’ve found Function valuable, and we hear your feedback around add-ons, scheduling, and making the overall experience more seamless. We really appreciate your honesty.
Stephen
Simple and provides decent baseline. Wish it would go a bit deeper into my personal health
Response from Function HealthAug 20, 2026
Thank you for sharing your experience. Your comments help us identify opportunities to improve the member experience.
Adolfo C.
I did like the comprehensiveness of the first test that offers 140 metrics. However, I did not like that the second test only covered a portion of what the first one covered. It doesn't make sense to me. You established a baseline, but then you have to drop a pretty penny to continue measuring all your metrics. It seems to me like a bait and switch. I was expecting to track all the same metrics that I got in the first test. I wanted those metrics to appear on my second test as well. Update: I increased the rating from a 3-star to 4-star because although I did not like that it doesn't give you all the metrics on the second test, I do think that they do a good job explaining all the results and helping you become healthier through their suggestions. It is a valuable service.
Response from Function HealthAug 19, 2026
Hi Adolfo. Thank you for sharing your experience. We understand your expectation that the same markers would be included in your follow-up testing. We appreciate your feedback about making the scope of each testing interval clearer, and it helps guide future improvements.
Khadidja
Only one lab in our state. Should have access to other labs if quest not available. Other than that, very exhaustive.
Response from Function HealthAug 17, 2026
Thank you for taking the time to share your experience. Your comments help guide future improvements.
Chandra S.
I loved that Function health was easy to use. It did take quite some time to get results back and I need to add a test and can’t figure out how to. The site itself isn’t very user friendly but over the test was cheap and I was able to get bloodwork to talk to my doctor
Response from Function HealthAug 17, 2026
Thank you for sharing your feedback. We’re glad Function provided useful information to discuss with your doctor.
