Function Day

July 7–11

Your health is the real deal

$499 → $365 with code FUNCTIONDAY

Terms and conditions apply.*Offer expires at 3:00 AM EST on 07/12/2025. Cannot  be applied to past purchases. Subscription will automatically renew annually at non-promotional rate (currently $499), until cancelled.

Live 100 healthy years.

It’s not just about living longer, but living better—without missing a moment. Insist on not just counting the years, but making the years count. Get 100+ lab tests and personalized insights tracked over your lifetime.

Test your levels

160+ lab tests

Advanced imaging (additional fees apply)

Tracked over time

Medical & Scientific Advisory Board Includes

Mark Hyman, M.D.

Dr. Mark Hyman is a former Cleveland Clinic physician, leader in functional medicine, co-founder and Chief Medical Officer of Function Health. and 15x NY Times best-selling author.

JoAnn E. Manson, M.D., MPH, DrPH

Chief of Preventive Medicine at Brigham and Women’s, Professor at Harvard Medical School and Harvard T.H. Chan, and expert in women’s health and disease prevention.

Daniel Sodickson, M.D., PhD

Chief of Innovation and Professor of Radiology at NYU Grossman School of Medicine, renowned for pioneering parallel MRI and advancing AI-driven imaging technologies.

Toby Cosgrove, M.D.

Former CEO and President of Cleveland Clinic; globally recognized leader in cardiac surgery and healthcare innovation.

Dr. Andrew Huberman, PhD

Professor of Neurobiology at Stanford School of Medicine and host of the Huberman Lab Podcast, translating neuroscience into actionable tools.

Azra Raza, M.D.

Professor of Medicine at Columbia University, specializes in Myelodysplastic Syndromes (MDS) research since 1982.

A membership that puts your health in your hands.

160+ lab tests yearly

Start with over 100 advanced lab tests, followed by a 60+ test follow-up after 3-6 months, it’s 5x more lab testing than the average physical.

Full-body testing

Comprehensive lab testing covering your heart, hormones, metabolic, stress, autoimmunity, toxins, reproductive health, and much more.

Personalized insights

Get data-driven insights from the world’s top doctors based on your unique results.

Tracked over time

Seamlessly track your lab results all in one secure place over time. Monitor how your health evolves as you do.

Test your levels

Testing is easy

Step 1

Quick booking

Secure a time slot at any of Quest Labs 2,000+ locations across the US.

Step 2

15 minute lab visits

Function includes two short annual lab visits to test 100+ biomarkers.

Step 3

Take action. Test again.

Turn your results into actionable insights with expert review, then test again.

Join hundreds of thousands
taking charge of their health

I learned through my participation with Function that I have CLL. I am now under the care of MD Anderson Cancer Center for my form of Leukemia.

Function is a blessing to my life. If I had Function earlier in my life, I would not have struggled with PCOS, IBS, and food sensitivities for as long as I did. I am SO excited to have this moving forward. I feel relieved, empowered, and inspired. Thank you Function team!

With my test results, I was able to identify several markers in need of improvement. With addition of many of the supplements listed, I was able to reduce my mercury from 25 to 16 in less than 2 months. I was able to order the mercury test individually for a very reasonable price, which allowed me to monitor the efforts I have been putting in to reduce that marker.

Finding and using Function Health may have been life saving. I had no idea, but I may be dealing with a serious cardiovascular concern that's related to my family history. I thought I was healthy and fit and didn't have to worry. I'm really glad I did this and now have the opportunity to make changes before it's too late. Thank you!

Based on my cardiovascular history, I found very useful to know how my body is improving on the ApoB and LDL biomarkers, as well as my biological age: from -13 years to -15 years, based on the Action Plan you recommended.

Thank you for all you are doing for chronically ill patients like me! This has already saved me thousands of dollars in lab costs. My other medical dr bills, meds & tests are already at $4,000 towards our deductible so this savings is a big help!

Thank you so much for all the work you put into this company. I wish I had this years ago when I was struggling with conventional medical practitioners. I believe this company is the future! Much love to your team.

Function detailed labs provide valuable information that allows me to control my health. It will be valuable to have insight on how to make lifestyle changes that would help correct the areas that need improvement.

I am so impressed. I texted on a holiday Sunday about my period starting/rescheduling bloodwork and I got an answer within 5 minutes. Plus help scheduling. I’m impressed with the lab info so far. I really love this more than I thought I would.

I appreciate the detailed feedback regarding the test results... food, supplements, causes and whys. It makes understanding my health and making smart choices easier. - Mother of 4 in Kansas