Function Health Review: My Experience With Function
If you’re here, I’m assuming you’re willing to nerd out with me on health things and today that’s just what we’re doing, friends. We’re diving into lab tests and overall health. Blood work is one of the most effective ways to assess your overall health, from heart health to hormone levels and more. But traditional lab tests can be expensive, confusing, and inaccessible—especially if you’re not working closely with a primary care physician or dealing with insurance red tape. So we’re looking at another option below in my Function Health Review.
I’ve been a member of Function since March, and I’m sharing my experience, what the membership includes, how it works, what it tests for, and whether or not I think it’s worth the investment.
Perhaps the most fun part? It gives you your biological age! I’m sharing mine below.
FYI: My membership was given to me with no obligation to share about it. After trying it, I decided to become an affiliate and share my experience because this fills a big gap between conventional and functional medicine that I think many of you would be interested in. As an affiliate, I do earn a commission.
Function Health Review: My Experience With Function
What Is Function?
Function Health offers access to extensive blood work and personalized insights. They give you 100+ lab tests to get an in-depth look at your total health. It’s based in the U.S., and was co-founded by Dr. Mark Hyman, a well-known functional medicine leader, and CEO Melissa Eamer, a former Amazon executive with a vision for making health data more accessible.
The platform bridges the gap between preventive health and traditional medical systems, helping you take control of your well-being through science-backed lab testing and clinician-reviewed results.
Function Health Review: Why I Tried It
When Function Health reached out I was skeptical (I mean, I get some weird emails) but saw it was founded and backed by experts like Dr. Mark Hyman, who is actually the chief medical officer for Function. As he’s deeply connected to the Cleveland Clinic and functional medicine, his involvement immediately gave the platform some credibility in my eyes. So I decided to try it out!
I was really impressed that a Function membership gives you access to over 100 lab tests. I had previously done a full workup to get a true picture of my health (read about that in my Harvey Health post), but it had been a few years and I was overdue. And to be honest, I’d been getting a little nervous/scared about heart health due to some family things. I had questions about my cholesterol LDL, thyroid, nutrient levels, white blood cells, and overall heart health. But piecing together all of that testing on my own through individual lab visits would be time-consuming and pricey.
I went in with high expectations—I was hoping for clarity, actionable insights, and a better understanding of my body. I wasn’t disappointed. If you’re someone who likes to feel empowered by information, I think you’ll find this Function Health review incredibly helpful.
My Experience With Function
First things first, this 80s baby is actually just in her 20s 😌
I mean, that’s like 20 years younger. You know I sent that screenshot to friends and family near and wide haha!
The entire process was very easy. After I signed up, I filled out some initial health history questions online. Then I was able to see all the additional tests you can add on (for an additional fee). I opted to go with what’s included since it already covers so much. Next, I scheduled my blood draw. There are plenty of Quest Lab locations around Charlotte, so all of that was really easy.
Within a couple days, results started to populate on my dashboard and it was really fun to see. I went back the next week for my second blood draw and this time they took a urine sample too. After that, results rolled in over the next couple of weeks and about 2 weeks later, I saw the final clinician notes added. They will retest my labs about 6 months after my first tests to track any improvements.
Final Results
The dashboard is laid out really well and they break the results down into very easy-to-read graphs. It was fascinating to see exactly what’s going on inside of me! I do my best to take care of my health and fortunately, most of my results were good. Some things surprised me. I have high iron! Guess I’ll lay off the cast iron pan for a bit. I really liked that they gave you a list of top foods to eat and what to avoid. They also share supplements that can target your results. The clinician’s notes helped walk me through the info. Just to be clear- it’s not a doctor’s appointment, but it is a further analysis by a doctor who has looked over your entire report.
How Does Function Work?
Here’s how the process works step by step:
1. Join with a Function Membership
To get started, you’ll sign up for a Function membership. This gives you access to testing, a personalized dashboard, and clinician notes that explain your results.
2. Schedule Your Blood Draw
Once your membership is active, you’ll be directed to a local Quest Diagnostics center for a lab visit. The blood draw process is quick and done through a trusted national lab. You do a second blood draw along with a urine sample within a 10-day window of the first visit. If you’re of menstruating age, the first visit needs to be on day 2, 3, or 4 of your period.
3. Receive Results + Insights
In about 2 weeks, your results will be fully uploaded to your personal dashboard. You’ll get easy-to-understand charts, plus clinician notes that explain what’s in range, what’s not, and how everything ties together. This is where you can see data on biological age, LDL particle size, and more.
4. Track and Compare Over Time
With the mid year recheck testing and annual testing, you can track progress year-over-year.
What Does Function Test For?
Your Function membership includes testing across 100+ biomarkers. Some of the key areas tested include:
- Heart health markers (like cholesterol LDL, HDL, triglycerides, and LDL particle size)
- Liver and kidney function
- White blood cells and other immune markers
- Thyroid hormones
- Nutrient levels (like vitamin D, B12, magnesium)
- Blood sugar and insulin sensitivity
- Inflammation markers
- Hormones (including estrogen, testosterone, cortisol)
- Biological age estimates
- And many more
I was particularly impressed with the comprehensiveness- it really does feel like getting a full internal report card.
Function Health Add On Tests
In addition to the core panel, Function Health offers optional add on tests that can provide even deeper insights depending on your health goals. While not all are necessary, some can be especially helpful.
Advanced Hormone Testing
If you’re dealing with fatigue, mood changes, or cycle irregularities, more comprehensive hormone panels can offer a clearer picture beyond the basics.
Gut Health Testing
For those struggling with digestion, bloating, or food sensitivities, gut testing can help uncover imbalances and guide dietary changes.
Food Sensitivity Panels
These tests can help identify potential triggers if you suspect certain foods are contributing to inflammation or skin issues.
Advanced Cardiovascular Markers
Beyond standard cholesterol levels, these tests look at deeper cardiovascular risk factors, which can be especially helpful if heart health runs in your family.
Toxin & Environmental Exposure Testing
This is the first I’ve seen of this type of add on tests. It can help identify exposure to heavy metals or environmental toxins.
How To Download Function Health Results
Accessing and saving your test results is simple, but there are a few helpful tips to make the most of your data, especially if you want to share it during a discussion with your primary physician or other licensed professional. My mom was able to send hers to her doctor and he actually changed some of her medication dosage due to this testing, discovering more than what his office tested for.
Log Into Your Dashboard
Start by logging into your Function Health account and navigating to your lab dashboard. This is where all 160 lab tests and biomarkers are organized in a clean, easy-to-read format.
Download a PDF Copy
Function Health allows you to download your results as a PDF. This is one of the easiest ways to keep a personal record or bring your labs to appointments for a more detailed discussion with your provider.
Screenshot Key Biomarkers
If you’re tracking specific markers like cholesterol levels, blood sugar, or vitamin deficiencies, taking screenshots can be helpful for quick reference or progress tracking over time.
Share Results With Your Provider
Even though Function Health provides insights, it’s still important to review your labs with a qualified professional. Sharing your results with a physician or other licensed provider ensures you’re getting personalized medical advice and context.
Track Changes Over Time
One of the biggest benefits of Function Health’s services is the ability to monitor trends. Downloading and saving past results makes it easier to compare data and identify patterns in your health.
How Much Does Function Health Cost?
At the time of writing, a Function membership costs $499 per year. This includes:
- Access to 100+ lab tests annually
- Comprehensive blood draw and follow-ups at Quest Diagnostics
- Full access to your results dashboard
- Ongoing insights with clinician notes
- Additional upgrades and optional testing throughout the year
There are no hidden fees, and compared to what you’d pay to order these labs individually (easily $1,500+), it’s a very reasonable investment.
Is Function Health HSA Eligible?
At the time of writing, a Function Health membership is not typically eligible for HSA or FSA reimbursement. That’s because it’s considered a wellness service rather than a necessary medical expense.
However, there are a couple of nuances worth noting. Some of the individual lab components included in Function Health’s services, like blood work tied to specific conditions, may qualify if you have a Letter of Medical Necessity (LMN) from a physician or other licensed provider. This usually requires a discussion with your primary care provider and documentation that the testing is medically necessary.
Because HSA/FSA eligibility can vary, it’s always best to check directly with your plan administrator. Keep in mind that Function Health is not a substitute for medical care, and any reimbursement decisions ultimately depend on your provider’s guidelines.
Is Function Health Worth It?
Now for the big question: Is Function Health actually worth it?
For me, the answer is yes. As someone who is deeply committed to holistic health, having access to this level of data has been empowering. I can walk into a doctor’s office with real information and advocate for myself—or make changes based on the data alone.
The results helped me identify a few imbalances I wouldn’t have otherwise known about—some of which could have developed into bigger issues down the line. Being able to catch things early and track my progress has made me more proactive in caring for myself.
I also think Function is ideal if you’re working with an online provider. Combining insights from Function with a holistic approach is a powerful combo.
If you’re even a little bit curious about your internal health— especially your heart health or hormonal status—I absolutely recommend joining Function.
Whether you’re trying to optimize your wellness routine, track your biological age, or just finally understand your hormones, I hope this Function Health review helps you decide whether a Function membership is the right move for you. Personally, I’ll be renewing mine—because peace of mind, and feeling years younger, is worth every penny.
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