Linda B.
Room for improvement
The wait to get my blood draw was 20 mins. I had not planned for that and it played havoc with my schedule. When I was called in, it was very fast and efficient.

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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Linda B.
The wait to get my blood draw was 20 mins. I had not planned for that and it played havoc with my schedule. When I was called in, it was very fast and efficient.
JG
There is a lot of emphasis in terms of adding tests and screens and it creates a huge expectation with regards to result interpretation. There was little insight with results, I ended up spending 5 times what was advertised, and didn’t receive any feedback tied to the stated goals. The strongest follow up was focused on referral incentives…
Response from Function HealthOct 10, 2025
Thank you for sharing your feedback. We’re truly sorry to hear that your experience did not meet expectations. Our team has reached out to you directly via email to discuss your concerns and make sure you get the support you need.
Nicole G.
I loved how easy is to interpret what the body tells on the exams!
Rachel W.
Definitely an easy process. When I shared my results with my practitioner, they found some additional things that could be contributing to the issues that were discovered. So working on that. Will be curious to see what my next blood results show.
Susan M.
Blood work made easy! Function Health tests for many blood markers, so I can see how I am doing with my health care and health objectives. They also make it easy to understand all the results and what to do to improve my health, whether it’s adjusting my diet, supplement plan or talking in depth to my own practitioner to discuss the results. They make it easy to schedule lab blood draws and easy to share the information with anyone who needs to see the blood test results. And all this for a great price.
RRoyall
So far I truly love how this process has gone. I’ve had some hiccups with Quest (Function’s Lab) but it’s not fair to knock them over something they don’t control. What I will say is when I brought my concerns to Function, Function quickly worked to resolve. Things happen, but how they’re handled shows the level of care. If you’re interested in being proactive about your health, I highly recommend.
Kathryn B.
Good at getting back to me when I had questions
Breana W.
Good deal if you want all of the tests run, but don't count on their feedback to give you any real actionable input. I had to take all of the test data to an actual Functional Medicine doc for that. But, getting all of the tests done for this price is way better than if I had used my insurance, plus most docs won't order all of these. I would suggest to Function that they get real Functional Medicine docs to then give you a treatment/action plan that is personal to you, not just tell you what you're low in and what supplements to take for that.
Response from Function HealthOct 9, 2025
Hi Breana. Thank you for taking the time to share your suggestions. We’re glad to hear you found value in the depth and affordability of the testing Function provides. Your input helps us keep improving our member experience.