Function HealthFunction 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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Carol
It is easy to get the blood drawn and nice to have more details than we typically get from our own doctors.
Response from Function HealthAug 12, 2026
Thank you for your kind words. We’re glad you had a smooth testing experience and found the additional insights helpful. We appreciate you sharing your experience.
Claire
It’s nice to have all these tests as a baseline, but I think they just utilize AI too much. I found myself to be less confident in their findings and explanations because of that.
Response from Function HealthAug 7, 2026
Thank you for sharing your honest feedback, Claire. We understand your concerns and appreciate you sharing how the experience affected your confidence in the information provided. Your feedback is important to us as we continue to improve the member experience.
Valerie
Great communication.
Response from Function HealthAug 10, 2026
To 100 healthy years.
Shannon
Great service! Highly recommended.
Response from Function HealthAug 12, 2026
Thank you for trusting us with your health.
Tammy
App is easy to use. Custom service was timely and helpful. Lab draw was quick and professional. Results were fast and thorough. Chat has been very helpful to give greater understanding and suggestions. Highly recommend!
Response from Function HealthAug 12, 2026
Thank you for taking the time to share your experience. We’re thrilled to hear the app was easy to use and that you found the testing, insights, and support valuable. We truly appreciate your recommendation.
Jenn
This testing may have saved my life! I was made aware of low blood cell lines ultimately resulting in a blood cancer diagnosis! I would encourage everyone to get checked!
Response from Function HealthAug 12, 2026
Thank you for your thoughtful review. We’re grateful you shared your experience with us. If you'd like to tell us more about your journey, please contact us at [email protected]. We'd be happy to hear from you.
Nicki
I appreciate the explanation of each result and especially how I can improve each particular mark by supplementing and eating more of this or that. Also what to avoid, great information to have! Already made changes to our already healthy diets, but always room for improvement, which Function made very clear. We are living for longevity and want every bit of preventative care we can get. Thank you Function Health! Also, with the discounts in July we were able to afford these much needed tests for both my husband and self. We’d love to be able to gift these tests to our adult children, should another great offer come available. :)) I have already recommended this testing to two friends.
Response from Function HealthAug 12, 2026
Thank you for trusting us with your health. We’re thrilled to hear the insights have helped you make meaningful changes and that you’ve already recommended Function to friends. Your support means a great deal to us, and we’re grateful to be part of your health journey.
Susan
My reason for taking it was that I’m self insured. It’s a cost cutting service. I get way more test results this way versus getting a standard test at my doctors office. My doctor can’t come close to their pricing.
Response from Function HealthAug 12, 2026
Thank you for sharing your experience, Susan. We’re glad you’ve found Function to be a valuable way to access a broad range of health information.
