customer
Amazing experience and very well…
Amazing experience and very well explained
Response from Function HealthJul 27, 2026
To 100 healthy years.

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.
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customer
Amazing experience and very well explained
Response from Function HealthJul 27, 2026
To 100 healthy years.
Kristi F.
I’ve never had so many things checked so thoroughly!I am so glad to finally see why I’ve been so tired and just feeling off. Worth every penny!
Response from Function HealthJul 27, 2026
Your feedback means the world to us. We’re here to help you unlock a clearer, whole-body view of your health.
Jason
I turned 50. I don't take any prescription medication, but also don't see a GP on any sort of regular basis. As a matter of fact my last doctor relocated 3 years ago. While researching a new doctor that aligns with my wellness views, I decided it would be best to be able to provide current blood level markers for the doctor to review prior to the initial visit. I highly recommend that everyone have these tests done. The results give detailed insight on your current health markers. Due to my normal occupational exposure to demolition dust, I wanted to know what heavy metals have accumulated in my body. Along with identifying any genetic characteristics that may put me at greater risks for cancer, cardiovascular diseases, dementia, and establishing baseline levels for testosterone. The process is extremely thorough, and it helps that it's very well organized so as to not take too much of your time. My results started coming in within 5 days, and the complete results around 2 weeks. I mistakenly booked a few of my add on tests 5 months out, and a Function representative contacted me to make me aware and helped me reschedule a sooner date. Bottom line, do yourself, and your family, a favor and get your levels checked. The sooner you know that there's an issue, the sooner you can take action.
Response from Function HealthJul 27, 2026
Thank you for trusting us with your health. We’re thrilled you’re finding value in Function. It’s wonderful to hear the insights and broad range of biomarkers have been helpful, and we’re glad our team was able to assist with your scheduling. We wish you all the best as you continue moving forward.
Sarah
I only did Function Health so I could do the add-on test for the APOE4 Alzheimer’s gene. But there were serious issues uncovered in the regular round of labs that were missed by all my doctors. I am getting these issues dealt with now. There were also nutrient deficiencies and I have completely changed my diet as a result which has been life-changing in a very short amount of time to have that kind of motivation for better results next time is amazing.I feel really grateful that I did this.
Response from Function HealthJul 27, 2026
Thank you for your thoughtful review. We’re honored to be part of your health story and appreciate you sharing how Function has supported you.
Amy
This info can be overwhelming, but your “connecting the dots” statements are so clear and communicated in a way that makes sense. Getting to the root causes of my ailments and how they all tie in together has been a game changer in my health.
Response from Function HealthJul 27, 2026
Thank you for the kind words. We’re so glad the insights have made your results easier to understand. We appreciate you taking the time to share your experience.
Karen L.
The labs come back so quickly, are so thorough, and the overview of the results are all so helpful in understanding my health.
Response from Function HealthJul 27, 2026
Thank you for trusting us with your health. We’re thrilled you’re finding value in Function.
JOANN
I’m so grateful to my Doctor Oliver Smith for recommending your company. I just received my results yesterday and was so impressed that it was so thorough and that I can click on each item to know why it was important why it mattered and what it meant. I also like the fact that food recommendations were made that would be easier for me and the foods to avoid while there were no real surprises since I have taken quite a few classes on eating and food, it was nice to have everything there in front of me. Also, the suggestions on vitamins was very helpful. I will look forward to continuing to do my blood work with your company and would highly recommend it to anyone who is looking for a thorough bloodwork analysis. Joann Wardy.
Response from Function HealthJul 27, 2026
Thank you for the kind words, Joann. We’re honored to be part of your health story and grateful that you took the time to share your experience. We’re glad you’re here.
Grace
Inexpensive test, to monitor status of new supplement/drug. Service and value are great.
Response from Function HealthJul 27, 2026
We’re thrilled you’re finding value in Function. Thank you for sharing your experience.