Function Health Reviews 1,152

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

Excellent experience that allowed a…

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 thorough explanations provided for each test marker and the summary clinical notes. Simply outstanding. Wish this had been available years ago. Totally changes your health outcomes by providing a real and thorough look at your markers. Now I can take steps toward optimal health rather than guessing at it!

March 26, 2026
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Reply from Function Health

Appreciate you sharing this, Donna. Your experience shows what's possible when you have access to clear health data and a plan to act. To 100 healthy years! 🧡

Rated 5 out of 5 stars

very easy process

very easy process; I feel more comfortable knowing what areas of health I need to work on to improve overall fitness

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Patrick. We are glad that the process was easy and that you now have the data to take charge of your health. 🧡

Rated 5 out of 5 stars

Excellent personal medical journey

I really liked that this was a personal journey and it was done professionally and I had the opportunity to learn a lot of information about my internal body. I was surprised by some findings and changed my supplements to reflect these deficiencies. I loved the AI chat function. I also like being able to easily share the results with my Dr.

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Leigh. We are glad that the AI chat and the ability to share results with your doctor were valuable to you. Appreciate you sharing this — stories like yours inspire others to get proactive and stay on top of their health. 🧡

Rated 5 out of 5 stars

Worth it

This was totally worth it. It gives you super important data. You wouldn’t normally get with labs at the doctor. Helps you craft a nutrition and supplement plan when you get your results along with next steps for your health.

March 26, 2026
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Reply from Function Health

Appreciate you sharing this, Kate. Your experience shows what's possible when you have access to clear health data and a plan to act. To 100 healthy years! 🧡

Rated 5 out of 5 stars

Love the summary and advice on new…

Love the summary and advice on new supplements geared specifically to me.

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Tim. We are glad that the summary and supplement recommendations were helpful. Way to take charge of your health! 🧡

Rated 5 out of 5 stars

Flexible for scheduling and the results…

Flexible for scheduling and the results have proven to be very helpful. Brief insights to explain each blood test result. Highly recommend. I also appreciate the “effective age” suggestion as a wrap up to the assessment.

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Sherri. We are glad that you valued the flexible scheduling, results, and the effective age feature. We are glad you are here! 🧡

Rated 5 out of 5 stars

Timely

Timely, accurate communication. Always helpful, cordial and friendly. Any problems or mistakes I encountered were caused by human error from another organization or business not from Function Heath FH personally provided information necessary to resolve issue without blame. They have been a pleasure to work with.

March 26, 2026
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Reply from Function Health

Appreciate you sharing this, Char. Stories like yours inspire others to get proactive and stay on top of their health. 🧡

Rated 5 out of 5 stars

Responsive support staff

Responsive support staff
Excellent explanation of test results
Good website

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Laurie. We are glad that you valued the responsive support, result explanations, and website. We are glad you are here! 🧡

Rated 5 out of 5 stars

Everything about the process was simple…

Everything about the process was simple and explained well. Ordering and setting the lab appointment was fast and the results were delivered in the time frame I was told they would be. Very insightful
information and I look forward to doing the follow up labs for comparison. I would definitely reccomend Function and have.

March 26, 2026
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Reply from Function Health

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

Rated 5 out of 5 stars

I have recommended this to so many…

I have recommended this to so many people. The cost for the tests and results I received were fantastic. Having access to the clinician report and all my test results, along with explanations is really great. The protocol feature/AI feature can be glitchy but I have not relied on that.

March 26, 2026
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Reply from Function Health

Thank you for spreading the word, Natasha. Every review helps more people discover what's possible with Function. We hear you on the protocol feature — your feedback helps us keep improving. We're glad you're here! 🧡

Rated 5 out of 5 stars

I really like the information I…

I really like the information I received with the explanation. It is a wonderful service and I am glad we have this option. Very reasonably priced and convient.

March 26, 2026
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Reply from Function Health

Appreciate you sharing this, Sandy. Reviews like yours inspire others to take the first step toward understanding their health. 🧡

Rated 4 out of 5 stars

I enjoy the prompt AI service however I…

I enjoy the prompt AI service however I wanted to confirm a reschedule situation and after several tries I got frustrated and stopped. It's hard not having a real person to talk to.

March 26, 2026
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Reply from Function Health

We hear you, Betsee. Thank you for being a part of the Function community. Send us an email at hello@functionhealth.com if you are open to sharing more about your experience — we'd like to help make this right. 🧡

Rated 5 out of 5 stars

Very Happy with Function Health!

Using Function Health is highly recommended! Me cardiologist sent me to get bloodwork through Function Health. I was blown away with all of the information you get back from the tests. The testing is extremely detailed. If the test comes back they dig deeper to see where the issue developed. I have given my regular practitioner a printed copy and we sat down and reviewed all of the results. It is something I will use every year. It helped my cardiologist and my practitioner make changes and give me further advice. Fortunately there was no indication of cancer or other issues.

Kathleen

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Kathleen. We are glad that the results were helpful for both you and your doctors. Stories like yours inspire others to get proactive and stay on top of their health. To 100 healthy years! 🧡

Rated 5 out of 5 stars

Very Professional & Easy to Use

Professional! Convenient! Flexible Scheduling. Excellent clinical notes! After using the service twice, it has been everything it was advertised to provide. I appreciate clear, concise objective data I can analyze with additional insight from the clinical notes. Absolutely recommend for anyone who appreciates seeing all the data and make your own choices to share/consult.

March 26, 2026
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Reply from Function Health

Thank you for the kind words, JP. We are glad that you valued the flexible scheduling, clinical notes, and objective data. We are glad you are here! 🧡

Rated 1 out of 5 stars

Not worth it

Not worth it. It's a very expensive blood test that most insurances cover with a $20 co-pay. All of the results and protocols created post blood work are AI generated. A doctor never contacts you or discusses your results in a personalized manner. It's all generic responses, they say it's personal but it's AI.

March 25, 2026
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Reply from Function Health

We hear you, Jon, and your feedback. Our goal is to make Function as valuable and personalized as possible, and your perspective helps us get there. We'd love the chance to learn more—send us an email at hello@functionhealth.com and our team will be happy to assist.

Rated 5 out of 5 stars

The price is unbeatable with any other…

The price is unbeatable with any other comprehensive labs out there. The recommendations are somewhat generic which I understand and I was surprised that recommendations were often based on regular labs not functional levels. They add the functional levels but recommendations were often based on the normal guidelines.

March 25, 2026
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Reply from Function Health

Thanks for the honest feedback, Aimee. We hear you and appreciate your perspective — this helps us refine our product so every member feels the full value of their Function experience. 🧡

Rated 3 out of 5 stars

The cost of the labs was reasonable.

The cost of the labs was reasonable.
Lab results and normal ranges should be summarized for quick reference
Optimal ranges should be provided
Keto and carnivore diet should be considered in the normal and oprimal ranges.

March 26, 2026
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Reply from Function Health

Thanks for the feedback, Gerry. We hear you and really appreciate your honesty. Our goal is to make Function as valuable and personalized as possible, and your perspective helps us get there.

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