Erewhon Members

Exclusive access for Erewhon members.

Function is redefining what it means to take control of your health, and as an Erewhon member, you can join for $399 for your first year (normally $499). With this yearly membership, get access to the results of 100+ advanced lab tests, advanced imaging (add-on fees apply), and top doctor insights, all in one app.

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Function empowers you to detect early signs of thousands of diseases, track your biomarkers over time, and uncover personalized recommendations based on insights from top doctors. Each test includes a detailed written report from a clinician, guiding you on food, lifestyle, and supplement strategies tailored to your results.

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100+ lab tests
across your body

The first-ever membership that includes the cost of 100+ advanced lab tests, comprehensive across heart, thyroid, hormones, metabolic, toxins, nutrients, autoimmunity, and more. Robust results turn into actionable insights from top doctors.

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Full list of 100+ tests.

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100+ lab tests

Advanced imaging (additional fees apply)

Tracked over time

Testing is easy

Step 1

Instantly request lab tests

Testing available at 2,000+ lab test locations around the U.S.

Step 2

Lab visits average 15 minutes

Function membership includes the cost of two lab visits per year, with 100+ biomarkers tested during the first visit and 60+ biomarkers tested during the second visit.

Step 3

Powerful results

Monitor for early signs of disease. Get insights on where and how you might be able to improve.

Included in Function

Be proactive about your health, disease monitoring, and a path to a longer life. Function offers one-stop for advanced lab testing, results tracking, insights, and explanations in the palm of your hand, allowing you to concentrate on living

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Re-test when you and your clinician see fit.

Clinician’s Summary of your results.

Access to Grail’s Galleri multi-cancer detection test.

Results tracked over time

Results tracked in one secure place. Dive into your health today. Monitor changes over time.

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Access to 100+ lab tests

Tracked over time

Monitor for early indicators of 1000’s of diseases

Thyroid Stimulating Hormone

Optimal Range: 0.4 to 4.0 mIU/L

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Out of Range

Aug 15, 2024

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6.1 mIU/L

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