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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Paul
Got the results and suggestions to improve my health in a decent amount of time. Now it's up to me to reach the goals set.
Response from Function HealthApr 28, 2026
Thank you for trusting us with your health. Every review helps more people discover what’s possible with Function.
Daniel P.
Overall solid tool and it’s helped identify focus areas for me as I tack my health carefully. Not sure if I will renew. Three reason for 2 stars: 1) you pretty much never talk to a person; it’s all AI driven. Would be nice to speak with someone live 2) huge upsell - lots of additional tests that get presented to you in money grab fashion. Expect to pay more than the base fee for additional tests that seem tempting 3) Ezra who they partner with for CT scans / MRI is an absolute disaster. They totally screwed up two CT / CAC scans so far (ie could not get accurate reading; scheduling mistake on their side). Their customer service is abhorrent. Never use them for anything.
Response from Function HealthApr 22, 2026
Thank you for your feedback. This isn't the experience we aim to provide. We've just sent you a request for additional information so we can contact you directly and look into this further—we're here to help.
Katie
So easy and so helpful!
Response from Function HealthApr 21, 2026
We hear you, thank you for being a part of the Function community.
Richard
The bloodwork appointment was easy, everything at the lab was seamless and efficient. Results came in quickly, and were easy to understand. The analysis of the results was extremely detailed and very helpful. I learned a tremendous amount about my health and how I could improve it. Highly recommend!
Response from Function HealthApr 21, 2026
Your feedback is important to us. We’re constantly evolving our offerings, and insights like yours guide how we grow.
Kathryn W.
Clear communication and detailed instructions.
Response from Function HealthApr 21, 2026
Thanks for the feedback, Kathryn. Your input helps shape the future of Function.
Mohrbacher, K.
Very thorough and carefully crafted summary!
Response from Function HealthApr 18, 2026
Thank you for trusting us with your health. Every review helps more people discover what’s possible with Function.
Ron
Relatively easy to initiate service and follow instructions for labs. Clinicians notes provide suggestions that help in making decisions. AI chat is helpful by answering specific questions.
Response from Function HealthApr 18, 2026
We’re thrilled you’re finding value in Function. Our mission is to empower members like you to understand and take charge of their health.
LS
The basic concept and service is reasonably good. The biggest issue I have is customer support. There is no number you can call to speak with a human. Their AI chat is useless, as it can't answer anything you couldn't figure out on your own. When it realizes you need an agent, it tells you to go about your day, and they'll answer you. HOWEVER, they don't answer you. Although the service seems legit, it unfortunately feels really shady to have a medical service that has no support. And very frustrating for something akin to concierge medicine. In this case, I'm trying to schedule a test I paid for a few months ago that I don't seem to have access for scheduling. So not getting back to me for something I paid doesn't feel good.
Response from Function HealthApr 15, 2026
Hi there, we have requested additional contact details through the Trustpilot platform so we are able to look into your situation. Please reply there so we can assist you further. We will update our reply when we hear back from you.
