Function Health Reviews 1,151

TrustScore 4.5 out of 5

4.3

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Review summary

Created with AI, based on recent reviews

Looking at 1,150 reviews, reviewers overwhelmingly had a great experience with this company. Customers consistently praise the detailed and clear information provided, especially the thorough explanations for each test marker and the comprehensive summary clinical notes. Many appreciate the ease of the process, from setting up tests to receiving results, and find the product offers valuable insights into their health at a reasonable price. The ability to track numerous biomarkers and receive recommendations for supplements and diets is also highly valued, empowering users to take charge of their health. However, some people mentioned dissatisfaction with the lack of direct interaction with medical professionals to interpret results or guide treatment, feeling the experience was impersonal and lacking follow-up. There were also concerns about the cost of additional tests and the amount of blood drawn, with a few reporting issues with partner services and customer support responsiveness.

What people talk about most

User experience

Users describe positive interactions with user experience, highlighting the clear and detailed information on... See more

Service

Customers consistently note ambiguous experiences with service, with some praising its timeliness,... See more

Product

Clients share positive opinions on the product, highlighting its thorough testing, detailed results, and... See more

Price

Reviewers highlight ambiguous aspects of price, with many customers finding the service to be a good value... See more

Customer service

Reviewers mention ambiguous feedback about customer service, with some customers praising the responsiveness... See more

Reviews shaping this summary

Rated 4 out of 5 stars

Really enjoyed seeing the results of a battery of tests. Also love the AI generated protocols. Only gave it 4 stars because my doctor complained she wished the printout would include the range for eac... See more

Company replied

Rated 4 out of 5 stars

Blood tests are very good; lots of information. Now if only my Dr actually knew what to do with all this information… It would be nice if Function Health offered a consultation with a Dr after you get... See more

Company replied

Rated 5 out of 5 stars

Excellent experience that allowed a deep dive into my health. Through Function I was able to take the guessing away and gather data. Now I can make targeted steps to improve my health. Love the thorou... See more

Company replied

Rated 5 out of 5 stars

Wonderful in every way. WELL worth the money, plus you can use HSA/FSA funds to cover it (we did). Really thorough testing and thorough details on the results! Extremely useful. Get the baseline info... See more

Company replied


4.3

Excellent

TrustScore 4.5 out of 5

1K reviews

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Asks customers to review

This company invites their customers to review, whether positive or negative

Replied to 85% of negative reviews

Typically replies within 1 week

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Rated 5 out of 5 stars

I have had a great experience with…

I have had a great experience with Function. The app is easy to use. Setting up the lab appointment was super simple. I just wish there was a location closer to me. It's very frustrating when going to PCP to get baseline labs ordered. They address the symptoms only then push pharmaceuticals which is disheartening. The report from the lab results is very helpful and I appreciate the recommended foods/supplements. Thank You!

27 April 2026
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Reply from Function Health

We’re thrilled you’re finding value in Function. Our mission is to empower members like you to understand and take charge of their health.

Rated 5 out of 5 stars

I love the information that I receive…

I love the information that I receive from Function Health. My doctor even commented on how comprehensive it is. It makes me aware of actions that I can take to improve my health. I even had the full body MRI at a reduced rate through Function Health.I want to live my life as healthy as possible. At 74 things can go downhill very quickly if you let them. The cost is incredibly inexpensive. Highly recommend this company.

27 April 2026
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Reply from Function Health

We’re glad the insights have been helpful and that you’re taking a proactive approach to your health. We appreciate your recommendation—thank you for being a part of the Function community.

Rated 4 out of 5 stars

deep dive into labs

Great explanations of results and what they mean.

27 April 2026
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Reply from Function Health

Honored to help you own your health. 🧡

Rated 5 out of 5 stars

Excellent Experience all the way through

The experience of the lab draw was seamless- from filling out my history to walking into the lab 3 miles from my house. After the blood was collected, I received results as they came in- not having to wait two weeks or more before any results were reported. The best part is the analysis and recommendation from the team on things that looked great and things that needed improvement' And the cost of this testing includes a follow up draw. I am very pleased with the whole process.

10 March 2026
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Reply from Function Health

Thanks for spreading the word, Kathy. Together, we’re building a community taking proactive steps toward better health.

Rated 5 out of 5 stars

Very comprehensive testing, highly recommend

Function has a very comprehensive group of tests, much more than you can get at a regular checkup with a mainstream doctor. The process was very easy to set up the appointment for the bloodwork and the app is extremely comprehensive and easy to use. It has helped me to identify some potential problems before they become a real health issue and to determine the supplements I need to take based on my detailed tests. They have also been very helpful and quick to respond to a few questions I had. I highly recommend Function if you want to be you own advocate and take the time to read and understand the very detailed and thorough Clinician notes that they provide.

27 April 2026
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Reply from Function Health

Appreciate you sharing this, Jennifer. Your experience shows what’s possible when you have access to clear health data and a plan to act.

Rated 5 out of 5 stars

EASY AND AFFORDABLE

It was easy, affordable and lots of details. I plan on having additional tests done as I can afford it. Very interested in the full MRI for neurological reasons.

I referred a friend, who sign on and is very impressed. However, I didn't realize I could do the referral program. Her name is Sherry Faith.

27 April 2026
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Reply from Function Health

Thank you for sharing your experience. We’re glad you found the process easy and the insights valuable.

Please, send us an email at hello@functionhealth.com—our team can help clarify the referral program. We appreciate you being part of the Function community.

Rated 3 out of 5 stars

I liked the self-empowerment idea…

I liked the self-empowerment idea behind Function, and how thoughtful and expansive the doctor summary was. However, the blood draw took way too much blood at one time, which left me as an anemic who had been told it would be fine, convulsing and almost in the ER a few hours later due to blood loss.

27 April 2026
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Reply from Function Health

Thank you for your feedback. We’re truly sorry to hear about your experience after the blood draw—that’s not the experience we want for our members.

Although it is safe to provide the amount of blood indicated for membership-included testing, it may affect individuals differently. We see that our team was able to connect via email and recommended following up directly with your healthcare provider.

We are here to support you and ensure the process is as comfortable as possible if you do decide to continue with testing. Please email us back if we can assist you further.

Rated 5 out of 5 stars

Thank God for Function Health

Function help has helped me tremendously. It has made me more curious about my health and giving me stronger input to advocate to my doctor. What I may need. That’s definitely worth it! And I’m so glad someone loved me enough to refer it to me! I highly recommend becoming a part of the functional family!

27 April 2026
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Reply from Function Health

Appreciate you sharing this. It’s great to hear Function is helping you ask better questions and advocate for your health. We’re glad you found us—welcome to the community.

Rated 5 out of 5 stars

There's nothing like knowing more about…

There's nothing like knowing more about your health, and with Function Health I get a complete picture like never before. Thank you!

27 April 2026
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Reply from Function Health

Thank you for sharing this. Way to take ownership of your health!

Rated 2 out of 5 stars

Delay and problems with the appointment…

Delay and problems with the appointment due to a parking issues that was not plan in advance even if the person knew exactly where the meeting was taking place. Don’t have the full results because it’s missing blood or something happen with the blood that was collected. I’m from Canada and now I have to spend more money and plan a trip back to the USA to give more blood a second time if I want to get the full results. In conclusion I’m very happy with the experience. Thanks, Jean

27 April 2026
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Reply from Function Health

Thank you for your feedback, Jean. We understand the frustration this caused and have shared your feedback with our team.

Rated 2 out of 5 stars

Slow, not useful, T1 diabetic not considered.

I didn't get my results until you asked me to refer a friend and I told you I didn't have the results back yet. I got a lot of data but not a clear undertanding on how to make sense of it. Also, I fasted for 36 hours before the test, I didn't realize that would skewar the results. As a type 1 diabetic, my results were different than most people's but it didn't feel like that was taken into account in my overall age score. Honestly I feel like I wasted a bunch of money.

27 April 2026
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Reply from Function Health

Thank you for taking the time to share your feedback. We’re sorry to hear that your experience did not meet expectations. Your comments have been shared with our team as we continue working to improve clarity, guidance, and the overall member experience.

Rated 5 out of 5 stars

A very helpful experience.

The whole process went smoothly with no problems. Results were clear and helpful.

17 April 2026
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Reply from Function Health

Thank you for sharing this! Honored to help you own your health.

Rated 5 out of 5 stars

WE AREN’T GETTING ANY YOUNGER, BUT…

It’s awesome to be able to gather that type of information as I ease into age 59 with a Biological Age of 47.5! Even knowing what “Biological Age” means came from Funtion Health!!! Simply being able to identify health problems BEFORE they become real problems is crucial as we grow older! Let’s face it - we aren’t getting any younger, but Function Health can help us live longer! 😉

26 April 2026
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Reply from Function Health

Appreciate you sharing this. We’re glad the insights have been meaningful. To 100 healthy years.

Rated 5 out of 5 stars

Great customer service

I would say function really shines with the app and with the customer service. I had to use customer service a couple times and it was fast, kind and easy. The tests and app are great.

27 April 2026
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Reply from Function Health

Thank you for the kind words. We’re glad you’re here—way to take charge of your health.

Rated 5 out of 5 stars

More thorough than expected

The results an insights were more thorough than I would have expected. I have many actionable things I can do to make a difference in my health.

27 April 2026
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Reply from Function Health

Thank you for sharing your feedback. We’re glad to hear you found the insights helpful. We appreciate you being part of the Function community.

Rated 5 out of 5 stars

I am so grateful to have found function…

I am so grateful to have found function health. It has changed my life. I am now making changes so that I can be around for a long time for my kids. I added the Lyme panel and now have the answers I have been looking for. So grateful!!!

27 April 2026
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Reply from Function Health

Thank you for taking the time to share your experience. We’re so glad to hear that Function Health has helped you find answers and take meaningful steps for your health.

Rated 5 out of 5 stars

A good baseline for my overall health

I'm glad to have this thorough baseline information about my overall health and markers to watch from year to year. It's much more comprehensive than the blood panels my doctor does, and the physician notes are super valuable for giving action items or foods to focus on adding in or eliminating specific to my individual needs.

27 April 2026
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Reply from Function Health

Thanks for sharing—feedback like this helps us refine our product so every member feels the full value of their Function experience.

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