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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Mike T.
I love the app and the fact that I can see more bookmarked to u destined how I am doing. I like that I can use my regular Quest lab.
Response from Function HealthJul 13, 2026
Appreciate this, Mike. Stories like yours inspire others to get proactive and stay on top of their health.
Karen
The Functions testing was easy to complete, even for an older person like myself. Having the code to type in at the Quest Lab check in kiosk made that part smooth. (When one pays online you get the code.) The results arrive quickly and are easy to read and explain a bit about each result, if you click on them. The only thing I found a bit difficult was remembering how to print my results. I took my results to an independent preventive doctor with a list of questions and that was a positive experience, too.
Response from Function HealthJul 13, 2026
Thank you for the kind words, Karen. Your feedback means the world to us. We’re here to help you unlock a clearer, whole-body view of your health.
Jami
Easy and thorough. Glad I did it.
Response from Function HealthJul 13, 2026
Way to take charge of your health. 🧡
Anne
I really liked how the analysis of my results connected the dots. It looked at my past medical history, my reported symptoms and current health, and all the results in a way that my primary medical provider probably doesn't have the time to do. Way more informative than my annual physical. Thank you!
Response from Function HealthJul 13, 2026
Anne, thank you for trusting us with your health. We’re thrilled you’re finding value in Function and that the insights helped bring your health information together in a meaningful way. Reviews like yours inspire others to take the first step toward understanding their health.
Jennifer
Because Function health test for so many things I found out so much more about my body and how to adapt my lifestyle to improve my health. My PCP would never have known about my health risk as they do not perform the same tests.
Response from Function HealthJul 12, 2026
Your feedback means the world to us. We’re here to help you unlock a clearer, whole-body view of your health.
Scribbly D.
Heard anout Function from Huberman lab podcast about a year ago. Have been bounced around between doctors, none of whom would order the in-depth bloodwork. Now, I have some possible solutions and a more concrete basis for indepth conversations with my primary care provider as well specialists. Used my medical savings to pay for it. A bargain, considering it includes a 6 month followup.
Response from Function HealthJul 12, 2026
Thank you for sharing this! Going from being bounced between doctors to having a concrete foundation for meaningful conversations with your care team is exactly the kind of shift we hope Function makes possible. So glad it's been worth it.
Stephanie G.
Wow! I am absolutely blown away by this service. This is by far above and beyond anything else I've experienced or seen available out in the world. Thank you!
Response from Function HealthJul 12, 2026
Hi Stephanie, thank you so much! This made our day. To 100 healthy years.
Nicole
I appreciate the ability to receive detailed panel information and an official summary from a professional to know where I stand from a health perspective.
Response from Function HealthJul 12, 2026
Hi Nicole, thank you! Knowing where you stand and having a professional summary to back it up is exactly what we're here for.
