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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Katherine W.
Quick, thorough, and flexible. The instructions were helpful as well as the overview and plan for correcting any labs that were off. It gives people control of their health and information ongoing to see changes good or bad and take action to prevent disease.
Response from Function HealthFeb 11, 2026
Thank you for trusting us with your health, Katherine. Every review helps more people discover what’s possible with Function.
Bryan W.
Wonderful platform and great value. Only thing I wish was offered would be a 30-45 minute phone consultation to review the test results and develop an action plan.
Response from Function HealthJan 2, 2026
We hear you and really appreciate your honesty, Bryan. Our goal is to make Function as valuable and personalized as possible, and your perspective helps us get there.
Kimberly
Improving website however the amount of time it takes after having testing to get results is a bit long. I am sure dealing with others companies is part of that.
Response from Function HealthFeb 11, 2026
Thanks for sharing—feedback like this helps us refine our product so every member feels the full value of their Function experience.
Carole
Love the plethora of advanced tests and how easy it is to schedule. Really a great way to bring this previously untouchable health watch toolset to the consumer. My only rec is that it would be better if you could get a more in-depth analysis of results. I can do part of it myself and my GP can help but I really need a functional doctor’s analysis and that’s super expensive outside of the product. Would be nice to get that inside. And yes, I’m aware of the current analysis and your current policy to not diagnose or give deep personal recs.
Response from Function HealthFeb 11, 2026
We hear you and really appreciate your honesty, Carole. Our goal is to make Function as valuable and personalized as possible, and your perspective helps us get there.
Laura Hanrahan B.
I'm honored to be a member of Function Health and to contribute to improving healthcare overall.
Response from Function HealthFeb 11, 2026
Your feedback means the world to us, Laura. We’re here to help you unlock a clearer, whole-body view of your health.
Diane W.
Clear directions on testing. Quest did their best. The results report was extremely good. I still don’t understand how to address the problem results. . It would be helpful if you directed us to websites that would explain the results.
Response from Function HealthJan 2, 2026
Thank you for the feedback. We’re continuously improving the Function experience, and insights like yours help shape our progress. You may find our new private AI chat helpful for personalizing your Action Plan and better understanding your results.
Jim
Easy to follow guidelines result in a comprehensive review of health markers and recommendations for improvement.
Response from Function HealthFeb 11, 2026
Thank you for trusting us with your health, Jim. Every review helps more people discover what’s possible with Function.
Cynthia J.
Best overall view of health stats for the price...anywhere!
Response from Function HealthFeb 11, 2026
We’re thrilled you’re finding value in Function, Cynthia. Our mission is to empower members like you to understand and take charge of their health.
