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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Kathleen
Efficient process and helpful health information.
Response from Function HealthAug 2, 2026
Hi Kathleen, thank you for your review! We're so glad to hear you found the process efficient and the health insights helpful. We appreciate you being part of the Function community and trusting us with your health.
Jay
The experience has been excellent all-around. From the blood draw at Quest to the reporting from Function Health, it's been great. The reports have been very thorough and insightful, beyond what I expected. If you are concerned about your overall health, this is an excellent investment.
Response from Function HealthAug 2, 2026
Hi Jay, thank you for taking the time to share your experience. We're so glad to hear everything—from your appointment to your results and insights—met your expectations. We appreciate your kind words and thank you for trusting Function with your health.
Heidi
I have requested, what I believed to be important, blood tests from my PCP and was told no. This health screening caught problems and gave me solutions and I have made several life changes. My health goals are a greater priority and annual testing gives me feedback on my progress.
Response from Function HealthAug 2, 2026
Hi Heidi, thank you for taking the time to share your experience. We’re so glad the insights helped you prioritize your health goals and track your progress over time. We appreciate you trusting Function with your health and wish you continued success with the positive changes you've made.
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.
Mina
( Update: I am bumping up my rating from 3 to 4 stars because after this post, they reached out to me with a clarification and an apology. ) Not all the test results are in, and yet Function is behaving as if everything is done and completed by issuing the doctor’s summary and asking for a feedback on my experience. Without the clarification that they are still waiting for more data to come in, I am confused as to why they are rushing for the closure. Where are my added nutrients test results which I paid $299 for? I am still waiting since the blood was drawn only 10 days ago.if there is a mistake at the lab and my blood was not sent to the proper place for the added test for nutrients, please reissue the test so I can get the result, or refund!
Response from Function HealthJul 23, 2026
Thank you for sharing your feedback, Mina. We understand how frustrating it can be when you're waiting on results. Our team is looking into this situation and will reach out to you directly as soon as we have an update. We appreciate your patience while we review your concerns.
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.
