Honesty, pricing, process and quality scores appear once 5 customers have rated them.
About Function Health
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 Folks Told, with an average rating of 4.4 out of 5.
I’m glad that I’m getting the information from the test results. I’m glad they are making it more affordable for people to get this done so they have access to what’s going on in their bodies.
Reply from Function HealthFeb 20, 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.
AJ
Amelia J G.
Mediocre at Best
My results showed that I had a minor infection. It was not great to find out that I can't speak to a doctor at Function and would need to go to urgent care to take the tests again in order to get medicine. Additionally, my personalized summary missed key details from my medical history which invalidated a key portion of the analysis. I follow up and asked for Function to revise my analysis based on my medical history. They said they would be happy to, but didn't actually revise the problem. Was nice to get my AMH level results, but I definitely won't renew with Function.
Reply from Function HealthFeb 24, 2026
Thank you for sharing your feedback, Amelia.
We’re sorry this felt frustrating—especially when it came to your results.
Function provides clinician-reviewed insights based on your lab results, but does not provide medical advice, diagnosis, or treatment. If you’d like to discuss this further, please reach out to our team at [email protected] and we’ll be glad to help.
KG
Kathy G.
Working with Function has been such an…
Working with Function has been such an easy and pleasant experience. Everyone in this organization was kind, prompt with their responses and very knowledgeable.
Reply from Function HealthFeb 20, 2026
So glad to hear you’re enjoying Function. We’re excited to keep supporting you with insights that matter most to your health.
CU
customer
I appreciate the depth of testing and…
I appreciate the depth of testing and access to result clarification.
Reply from Function HealthFeb 20, 2026
Thank you for trusting us with your health. Every review helps more people discover what’s possible with Function.
RE
Reviewer
Promising idea, poor execution
Access to medical information and lab testing which practitioners would typically resist providing is a great idea. I think Function has had some measure of success and the execution is going downhill.
Customer support:
- Can no longer call, only email
- AI chat is very poor.
- Attempting to rebook labs through AI chat is a very poor experience. The booking thought process should be 'time frame + near the customer'. Instead it is fixated on a 'date', but labs are very booked up, and starting with a single date will equate to far away labs and bad times. Most Function tests are fasting, which also conceptually works against a 'date based' booking thought proces
- Function has overwhelmed there dashboard with bells and whistles making it difficult to use
- Information collection is overdone and overly personal, into minute personality and psychological questions. It's unclear what happens to this data if Function goes bankrupt or is acquired. It's unclear what questions are truly required to get lab results vs optional. One cannot answer some questions and skip others its all or nothing
- I showed up to the lab and it was closed. Function does not have a good enough 'sync' with labs to be made aware of closures.
Worst of all:
- The actual test results are displayed in an incredibly poor way, in that no ranges or context is displayed. So you will see a result such as "heart 1", an organ or metric and then a number. But the range, scale, etc is not displayed. So one has no idea if a "1" is good or bad, healthy or unhealthy, is it 1 out of 10, and so forth. You do have clinician notes to look at which will call out specific major issues, however there is no way to get any value whatsoever from the actual lab results because the range is not displayed. This seems like an elementary school level communication concept that is being missed. For example, trust pilot has a star rating, and indicates it's out of five stars, and more stars is good, less is better. If instead it was just "2" we'd have no idea if thats a good or bad rating.
- It's terrible to get worse result communication than a lab themselves would provide. When Ive had labs done, they always provide a range, and often if low or high is good/bad. Function abstracts all that so there is no way to get any insight from any of their results.
The primary value of Function is if the clinician notes call out a problem. This is sad, as Function throws away all its opportunity and value proposition through basic elementary level science communication mistakes. Communicating numbers that are on a range, without showing the range...
Reply from Function HealthFeb 23, 2026
Thank you for sharing your feedback, we’re always learning from our members and will use your feedback to keep improving. Our team has reached to you directly to assist you further.
CL
Claudia
Function Health has significantly…
Function Health has significantly improved my health. The biomarker
results allow my physician to make the necessary changes.
The platform is well designed and is very easy to use.
The FH staff is very kind and most helpful.
Reply from Function HealthFeb 19, 2026
Thank you for trusting us with your health. Every review helps more people discover what’s possible with Function.
BF
Barbara F.
The care in organizing the blood…
The care in organizing the blood testing, the return of the results along with the overview summary was easy to understand and know how to move forward.
Reply from Function HealthFeb 19, 2026
Your feedback means the world to us. We’re here to help you unlock a clearer, whole-body view of your health.
BJ
BEVERLY J.
The lab was clean and efficient
The lab was clean and efficient. Results were available quickly. i wish there was a way to forward my lab results to my pcp.
Reply from Function HealthFeb 26, 2026
Thanks for the feedback. Your input helps shape future product enhancements.