Pat
A deep dive into your health
I'm glad that I heard about this from Mark Hyman. It helps to know more details about your health and how to improve it. I appreciate the clinician notes and advice for food choices.

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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Pat
I'm glad that I heard about this from Mark Hyman. It helps to know more details about your health and how to improve it. I appreciate the clinician notes and advice for food choices.
Amy
Great set of labs and very easy to set up and use the app. I don’t give 5 stars only because I was hoping for more specific supplement recommendations (and doses) based on abnormal lab results. I was hoping for more actionable steps.
David
I really like the lab tests offered by Function Health and the explanations of doing these lab tests and they seem to be accurate. And also, the lab costs seem reasonable, but not cheap. Also, you can order optional lab tests not included in the regular yearly membership fee, but it can eventually become costly, depending what you order. The one complaint I had was that it was not clear that when I was trying to schedule an appointment for my first blood draw why I needed to schedule another appointment for another blood draw in about 10 days after the first blood draw. I knew the membership included 2 sets of blood work in 12 months, but I thought it was kind of odd to do the second set of blood work so soon. So, when I got my first blood work drawn, I asked the technician about it and she told me that she'll need about 20 tubes of blood for all that testing and they don't like to draw that much blood at one time, so that's why it's divided into 2 appointments. So, I assume when I do my second set of blood work in about 3-4 months I'll have to be stuck twice again. Also, on collecting urine , that was not too clear either. Was the lab supposed to collect the urine both times or just one time. The lab collected the urine on my second visit only. As a patient you like to make certain you have enough urine in your bladder.Function Health should have warned people up front about this, since some people have to drive further to get to the lab and some people don't like being stuck with a needle too frequently like me. Otherwise, it was a good experience so far, and then I trust Quest Labs.
Debra D.
Fantastic and very informative. I found out so much about my overall health, which has helped me make life changes. I have referred friends and family and it has helped them as well.
Response from Function HealthOct 20, 2025
Thanks for sharing your story, Debra — we’re thrilled Function has helped you and your loved ones make positive changes.
Kristen M.
Lol where to begin. They can’t book you for Day 3 of menstrual cycle (and they won’t tell you the test needs to be on day 3 until after you buy it) There are no available appointments once Day 1 happens. Last month, I tried to get an appointment and they booked me for 6 AM at an office that opens at 7 AM. And then when I went in it turned out out it was just a standby appointment and they could not see me until 1015 so I had to leave to go to work. Next month, day 1 arrives, and I go to book it, and I can’t because their computer system says I’ve already taken it from last month even though that wasn’t true. So by the time that is sorted out with them, I can no longer get an appointment for this month either. And can you get someone on the phone to talk about it? No! What a joke
Response from Function HealthOct 18, 2025
We’re sorry to hear about your experience, Kristen. We’ve requested more details so our team can review your member journey and reach out directly to help resolve this. We understand timing and scheduling are important, and we want to ensure you have the best possible experience with Function.
Deborah D.
These in-depth tests make information possible that your PCP won't test due to Medicare regulations. I found a few of my tests were out of range. They were tests which would not have been normally tested. I was able to take these results to my new Functional Health doctor so they could request tests that complement the findings. I plan to stay a part of Function Health in the future.
Response from Function HealthOct 20, 2025
Thank you for sharing your story, Deborah. We love hearing how Function insights are helping you and your doctor work together toward better health.
Tricia T.
It’s so awesome to be able to get labs without making an appointment with a doctor! I feel in control over my own health.
Response from Function HealthOct 20, 2025
Thank you for sharing, Tricia. We’re happy to hear you had a great experience and feel empowered by your results.
Jeff T.
If you are remotely curious about the effects of your environment on your body, you need to do this! Easy blood and urine tests to find out very detailed data which give you a detailed action plan to make better choices and live longer.