Walt W.
The value is tremendous just from the…
The value is tremendous just from the testing. The clinician's notes are fairly standard and aligned with conventional dogma. I am going to continue the service annually.

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 Five Star Index, with an average rating of 4.4 out of 5.
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Walt W.
The value is tremendous just from the testing. The clinician's notes are fairly standard and aligned with conventional dogma. I am going to continue the service annually.
Stephen Lambert Lambers J.
I now hav some good
Ann from J.
The website isn’t all that use-friendly, but when I message/email for help, I get it quickly. That is appreciated!
Bob R.
The Function Health process is easy to follow. Results are presented in an easy to interpret form. Traditional doctors seem to appreciate the depth of data that is provided.
Susan B.
Function Health helped save my husband's life! I could tell his energy was down and he was not himself but when asked by his Dr. how he was doing he always said fine, no complaints. The Function bloodwork showed several heart indicators out of range. I was able to take the results to his primary care Dr. and insist he was not "fine". Within two weeks my husband had a stint put in his L descending Artery which was 80% blocked. I think they call this the widow maker! He could have dropped dead at any time. Drs. have to have justification for everything they do as bound by insurance. These tests are not included in their yearly blood panels. I highly recommend everyone do the Function Health membership.
Anne G.
Timely results and good suggestions and interpretations
Cristiane Z.
I like your organization of the results, and all the information you provide with each test about what it means/what it measures. I also like being able to see how far I am from the normal ranges and the clinicians notes putting it all together. Thank you for the great job you are doing!
Larry L.
The testing is well organized and coordinated with my local lab. The website is easy to navigate and the instructions are detailed and understandable. Results were timely and the ranges are reasonable. As a doctor myself I found the physician analysis helpful but I did my own research on the findings to adjust for my personal circumstances. I found no substantive disagreements although the suggestions were perhaps overly broad since the review was for lab test numbers only. The cost is very reasonable for the useful information provided. I will continue with Function Health.