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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Teresa A.
This helped me to keep on top of health Website is wonderful Love the doctor notes
Response from Function HealthFeb 11, 2026
Way to take charge of your health, Teresa. We’re glad Function is helping you turn numbers into actionable insights.
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.
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.
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While the only lab I can go to is about 2 hours away, it is well worth it to get the information I needed to work on controlling my insulin resistance,A1C getting the knowledge that will get me there is a good start.
Response from Function HealthJan 2, 2026
We’re so glad to hear you found the insights valuable and worth the trip. It’s great that Function is helping you take meaningful steps toward improving your health and managing your A1C. Way to take charge of your health 🧡
Kimberly M.
the results were easy to read and understand. the option to print and share electronically was extremely helpful to share with doctors. I also found many other resources, including pod casts, books, and supplements that I trust to be good quality compared to off the shelf somewhere. Have discovered lots of info to help guide me through menopause and aging
Response from Function HealthJan 2, 2026
Thank you for trusting us with your health, Kimberly. Every review helps more people discover what’s possible with Function.
Roberto S.
Test don’t guess. Such an easy way to take more control of your health. Function does everything for you, all you do is give some blood and wait. I recommend it to many friends, I am glad companies like function exist.
Response from Function HealthJan 2, 2026
Thank you for trusting us with your health, Roberto. Every review helps more people discover what’s possible with Function.
