Function 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.
Also known as
functionhealth.com
Website
functionhealth.com
Category
Hospital & Emergency
Listed on Five Star Index
2026
About these reviews
Replies
The company replied to 90% of reviews.
Latest
Most recent review: October 2026.
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Easy and effective. Get bloodwork done, then wait for results. Comprehensive review was done and Diet, Exercise and Supplement suggestions were provided.
Response from Function HealthJul 26, 2026
Thank you for sharing your experience, Greg! We're so glad to hear you found the process easy and effective. It's great to know you found the comprehensive review and the diet, exercise, and supplement recommendations helpful. We truly appreciate you taking the time to share your feedback.
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Mike
I received false test data on my…
I received false test data on my results and nothing has been done to remedy the situation.
Response from Function HealthJul 20, 2026
Mike, we’re sorry to hear this. We’ve reached out to you directly to gather more information and review your concerns. We appreciate the opportunity to look into this with you.
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Pattie
Detailed information for your health
Well worth the investment in your health. The amount of information is helpful!
Response from Function HealthJul 26, 2026
Thank you for your kind words, Pattie! We're so glad to hear you found the information valuable and that the experience has been worthwhile for you. We truly appreciate you taking the time to share your feedback.
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Pamela
Everything was easy!!!
Everything was easy!!!
So much useful information!!!
Response from Function HealthJul 26, 2026
Thank you for your wonderful feedback, Pamela! We're so glad to hear everything was easy and that you found the information so useful. We truly appreciate you taking the time to share your experience.
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Cindy
Super impressed with the comprehensive…
Super impressed with the comprehensive review of all the tests. Thank you!
Response from Function HealthJul 26, 2026
Thank you for your wonderful feedback, Cindy! We're so glad to hear you were impressed with the comprehensive review of your results. We truly appreciate you taking the time to share your experience.
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Beth
I like knowing what specifically my…
I like knowing what specifically my body needs instead of guessing and taking random supplements. I also like being able to ask questions.
Response from Function HealthJul 26, 2026
Thank you for sharing your experience, Beth! We're so glad to hear you've found value in understanding what your body needs and that being able to ask questions has been helpful. We truly appreciate you taking the time to share your feedback.
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Beverly S.
I learn thing about my own health that…
I learn thing about my own health that was helpful.
Response from Function HealthJul 26, 2026
Thank you for your feedback, Beverly! We're so glad to hear the insights helped you learn more about your health. We truly appreciate you taking the time to share your experience.
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Pat
Poor Experience and Incompetence
This round was a frustrating experience compared to my first panel in October 2025.
Logistics were a significant issue. My blood draw had problems getting to the lab, which delayed the entire process by approximately four months. For a service built on the promise of comprehensive, timely health data, a four-month turnaround undermines the core value proposition especially for the amount I paid compared to the first draw. By the time I received my complete results and clinician notes in July, I had already started new medications, made supplement changes, and adjusted my lifestyle based on my own research and other clinical consultations. The data arrived too late to inform the decisions it was supposed to guide.
The clinician notes contained factual errors that could have led to inappropriate clinical decisions if I hadn't caught them. Most notably, the notes framed my lipid worsening as occurring "despite statin therapy," implying the medication was failing. In reality, I filled the rosuvastatin prescription on April 14 but did not begin taking it until after the blood draw. The statin had zero pharmacological effect on these results. A clinician reading these notes without additional context could have unnecessarily escalated therapy or questioned medication efficacy based on a false premise.
More concerning, the notes repeatedly referenced symptoms I never reported — joint stiffness, pain, redness, and difficulty building muscle. Multiple clinical conclusions were built on these phantom symptoms, including recommendations for rheumatology monitoring, gut barrier investigations, and muscle maintenance concerns. None of these symptoms exist. I don't know where this information came from — whether it was generated by AI, pulled from a questionnaire I don't recall completing, or simply fabricated — but attributing symptoms a patient doesn't have and building clinical narratives around them is a serious quality issue.
Some of the clinical guidance felt generic and not tailored to my actual situation. I have a complex cardiovascular profile including documented coronary plaque on CCTA, a coronary calcium score, nuclear stress perfusion data, cardiovascular genetics (9p21 high-risk), and ancestry-specific pharmacokinetic considerations for my statin dosing. None of this context was incorporated into the clinician notes despite being directly relevant to interpreting the lipid findings and making treatment recommendations. The advice read as template-driven rather than personalized to someone with documented coronary artery disease and advanced imaging.
The testing platform itself remains excellent — 282 markers with advanced panels including HDL function, cardiovascular genetics, NMR lipoproteins, Lp-PLA2, and comprehensive autoimmune workups is genuinely best-in-class. The data quality when it arrives is outstanding. But the value of comprehensive data is diminished when it takes four months to receive, arrives with phantom symptoms embedded in the interpretation, and doesn't account for the clinical context that makes the data actionable.
I'll continue using Function Health for the testing platform, but I'll continue interpreting my own results rather than relying on the clinician notes.
Response from Function HealthJul 20, 2026
Thank you for taking the time to share such detailed feedback, Pat. We appreciate you bringing these concerns to our attention. Our team is currently reviewing your case so we can better understand what happened and assist you further. We’ll be in touch with you directly as we continue looking into this.