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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Frances
The lab techs are great. Function is very organized and love the convenience of ordering when we need them.
Response from Function HealthAug 2, 2026
Thank you for trusting us with your health. We’re thrilled you had a great experience and appreciate you taking the time to share it.
Nancy
The quickness of the results
Response from Function HealthAug 2, 2026
Hi Nancy, thank you for your review! We're so glad to hear you received your results quickly. We appreciate you taking the time to share your experience and are grateful to have you as part of the Function community.
Linda
Quick appointment and quick results.
Response from Function HealthAug 2, 2026
Hi Linda, thank you for your review! We're so glad to hear your appointment was easy to schedule and that you received your results quickly. We appreciate you being part of the Function community.
Dan
I've gained a lot of insight into my health risks associated with high cholesterol through the lab tests that I wasn't getting through my regular doctor. I've learned through a high Lp(a) result that I'm genetically prone to heart health risks. This is enabling me to have a more productive discussion with my doctor and to advocate for my healthcare.
Response from Function HealthAug 2, 2026
Hi Dan, thank you for taking the time to share your experience. We’re so glad to hear the insights helped you have more informed conversations with your doctor and advocate for your health. We appreciate you trusting Function with your health and wish you all the best moving forward.
Elizabeth G.
Easy to schedule, great value, comprehensive testing, and detailed clinical review of your results. Would love to see reverse T3 added to the thyroid panel!
Response from Function HealthJul 30, 2026
Thank you for your review, Elizabeth! We're so glad to hear you found scheduling easy, the testing comprehensive, and the clinical review valuable. We also appreciate your suggestion about adding Reverse T3 to the thyroid panel—feedback like yours helps us continue improving the member experience. Thank you for taking the time to share your experience!
vaultmail
Physician responded quickly and was thorough, very clear explanations.
Response from Function HealthJul 30, 2026
Thank you for your review! We're so glad to hear you received a prompt and thorough response with clear explanations. We appreciate you taking the time to share your experience and thank you for being a member of Function Health!
Lou M.
Though it uses AI, it is hands down the best health assessment tool out there. It is the doorway for change that can lead to preventing metabolic and other disease.
Response from Function HealthJul 30, 2026
Thank you for your review, Lou! We're so glad to hear you've found Function valuable. It's great to know the insights, along with the AI chat, have helped you better understand your results. We appreciate you taking the time to share your experience and thank you for being a member of Function Health!
Donald
Prompt results.Easy to read and understand.
Response from Function HealthJul 30, 2026
Thank you for your review, Donald! We're glad to hear your results were delivered promptly and that you found them easy to read and understand. We appreciate you taking the time to share your experience and thank you for being a member of Function Health!
