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

Evaluating 1,144 reviews, reviewers overwhelmingly had a great experience with this company. Customers are very satisfied with the comprehensive health insights provided, finding the detailed explanations and clinical notes extremely helpful for understanding their bodies. Many appreciate the ease and affordability of accessing extensive testing, which empowers them to take charge of their health. The process, from scheduling lab appointments to receiving results, is frequently described as seamless and efficient. However, some people mentioned dissatisfaction with the lack of direct consultation with doctors to interpret results and guide next steps. There were also concerns regarding the amount of blood drawn during tests and issues with partner services like Ezra for imaging. A few reviewers also experienced problems with customer service responsiveness and the clarity of past medication references in explanations.

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

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... See more

Company replied


Company details

  1. #2 of 5 best companies in Blood Testing Service
  2. #3 of 5 best companies in Diagnostic Center
  3. #29 of 36 best companies in Health Consultant
  4. #3 of 5 best companies in Medical Laboratory
  5. #5 of 6 best companies in Specialized Clinic

Contact info

4.3

Excellent

TrustScore 4.5 out of 5

1K reviews

5-star
4-star
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1-star

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 4 out of 5 stars

Good value IF you need a comprehensive panel

I signed up with Function to save money on labs to start HRT. The process was easy and it was just like going straight to my preferred lab and getting all the same services. Someone from Function even called me to alert me to an elevated level in magnesium. (It's because I eat a lot of whole wheat and beans, so it was not a medical concern.) All in all, a good experience. However, I found out afterward that there's a similar service out there that would have cost me less had I selected just the labs I needed for HRT instead of doing a comprehensive panel through Function.

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Nora. We are glad the process was easy and that our team was able to reach out about your results. We're grateful you gave Function a try. We'll keep working hard to deliver an even better experience next time. 🧡

Rated 5 out of 5 stars

I recommend this service particularly…

I recommend this service particularly as you begin your older years - say after 65. You will receive so much information to help you live your best life.

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Sue. Reviews like yours inspire others to take the first step toward understanding their health. To 100 healthy years! 🧡

Rated 5 out of 5 stars

When I got to Quest for my follow up…

When I got to Quest for my follow up blood work, Quest didn't have the order. I texted someone at Function Health & it was taken care of in minutes. (At 7:10 AM!!!!)

March 26, 2026
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Reply from Function Health

Thank you for the kind words, Belinda. We are glad our team was able to take care of you quickly — that's what we're here for. We are glad you are here! 🧡

Rated 5 out of 5 stars

Communication was great

Communication was great. The scheduling and follow ups for the testing was timely and seamless. Clinician's notes were insightful and provided helpful information.

March 26, 2026
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Reply from Function Health

Appreciate you sharing this, Joanne. 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

I love the explanation of the results…

I love the explanation of the results and the food and supplication suggestions. However I didn't get any results telling me about my progesterone levels.
But overall I am pleased with the service.

March 25, 2026
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Reply from Function Health

Thank you for the kind words, Q. We are glad that you love the explanation of the results and the food and supplement suggestions. Send us an email at hello@functionhealth.com if you are open to sharing more about your experience with the progesterone results — we'd like to help make this right. 🧡

Rated 5 out of 5 stars

Priceless information to change your life!

I found Function Health just when I needed it! Their relationship with Quest Diagnostics and the super easy process made my decision a no-brainer. I compared other company's offerings and pricing and picked FH because 100+ markers and Clinician notes for $365 is a very good deal. I was looking at Quest pricing on my own before I found FH and my total was over $800 but didn't come close to 100 markers.
My blood tests results have changed my life. I was using Claude to help me understand why I was feeling as I did when I came across Function Health. Among other things my results showed inflammation and food were problems for me. Tomorrow will be 4 weeks on low histamine foods (and food prep) and the visible change is remarkable! My rosacea has calmed, my digestive system has improved (no bloating, gas). I thought my 4x week salad dinners were healthy. Not so much. Some of the ingredients exacerbated my already inflamed system. I took my 100 marker results to my PCP which resulted in looking deeper into some issues the results found, approval of my food/supplement changes and they wanted to read my Clinician Notes!
Easy access to blood testing and other doctor ordered tests will change the US Healthcare system. Most importantly it will change our lives by empowering us with knowledge to help us make healthy changes and enable us to talk to our doctors on a new level of detail.

March 25, 2026
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Reply from Function Health

Thank you for sharing this. We are glad that the results and clinician notes gave you something actionable to work with — the changes you're seeing are a testament to what's possible when you have access to clear health data and a plan to act. We're glad you're here.

Rated 5 out of 5 stars

Amazing and Seamless!

Amazing and seamless experience from the blood draw to reports delivered to my phone & email. Accessible information and data in language that is understandable. Every person needs to get their Function Health test done. It couldn't be easier and the data puts you in the drivers seat of your health.

March 25, 2026
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Reply from Function Health

Appreciate you sharing this, Michelle. Stories like yours inspire others to take the first step toward understanding their health. To 100 healthy years! 🧡

Rated 5 out of 5 stars

The company is absolutely amazing

The company is absolutely amazing. I am so impressed what they did with all of my blood work.

March 25, 2026
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Reply from Function Health

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

Rated 4 out of 5 stars

Before and after very different

Everything very smooth and professional but very little “after the tests” interaction. Felt like it was up to me to read and diagnose. The “before the tests” experience was intense hand holding and explanation and reminder heavy

March 25, 2026
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Reply from Function Health

Thanks for the feedback, Jeff. 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. 🧡

Rated 5 out of 5 stars

Function Health gives me crucial…

Function Health gives me every crucial number I need about my health without having to jump through hoops to get them and throughly explains why they are important and how to improve them!

March 26, 2026
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Reply from Function Health

Appreciate this, Jeremiah. 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

Great experience

Great experience! Very thorough!

March 25, 2026
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Reply from Function Health

Thank you for the kind words, Ali. We are glad you are here! 🧡

Rated 5 out of 5 stars

Function Health is user-friendly

Function Health is user-friendly. The inclusion of clinician's notes is beneficial for interpreting the results effectively. The explanation of the range of test results was helpful

March 26, 2026
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Reply from Function Health

Appreciate you sharing this, Christine. 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

Great experience with function so far

Great experience with function so far! Easy to navigate and good feedback from blood test

March 25, 2026
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Reply from Function Health

So glad to hear you're enjoying Function. We're excited to keep supporting you with insights that matter most to your health. 🧡

Rated 5 out of 5 stars

I found the tests and clinical notes to…

I found the tests and clinical notes to be extremely helpful on my longevity journey. I am a very active person and I am dedicated to my nutrition, so it was helpful to have some baseline data to support and guide my journey.

March 25, 2026
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Reply from Function Health

Appreciate you sharing this, Julie. 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

Great service

I appreciate being able to get needed lab work at a reasonable price. I like the AI features & appreciate the summary provided by a provider. My only issue is that my personal doctor is not familiar with many of these tests and what to do with the information.

March 25, 2026
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Reply from Function Health

Thank you for the kind words, Anita. We are glad that you appreciate the lab work and AI features. Your feedback means a lot — we're here to keep delivering a whole-body view with data you can use today. Health is so nuanced. 🧡

Rated 5 out of 5 stars

Love the comprehensive labs and being…

Love the comprehensive labs and being able to chat with a Dr if I have questions.
Love the mission to overall health and well being!

March 25, 2026
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Reply from Function Health

Thank you for the kind words, Jodi. We are glad that you love the comprehensive results and access to a physician. We are glad you are here! 🧡

Rated 1 out of 5 stars

The lady just gas lit me the entire…

The lady just gas lit me the entire time and never contributed an actual solution. It’s still an on going issue so as much money as I pay I feel a little more entitled to better customer service.

Outside of never being able to utilize the app because of this issue, I think this is a wonderful company doing a great thing for people who have a firm grasp on their own health and don’t really need a primary care physician at this point in their life.

March 25, 2026
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Reply from Function Health

We’re sorry to hear this—this isn’t the experience we aim to provide. Our team has reached out to you directly via email to support you further and look into this. We appreciate you bringing this to our attention and hope to connect soon.

Rated 3 out of 5 stars

I dislike the whole AI introduction…

I dislike the whole AI introduction into the program and results

March 25, 2026
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Reply from Function Health

Thank you for sharing your feedback. We understand that not every feature will resonate with everyone, and we appreciate you taking the time to share your perspective. Your input helps us continue refining the experience for our members.

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