Function Health Review (and the Data You Get)

The following content may contain affiliate links. When you click and shop the links, we receive a commission.

As someone who takes health and wellness seriously, I was eager to try Function Health. At 40, my concerns have shifted from general wellness to more specific areas like hormone health, autoimmune markers, and overall longevity. I had previously tried InsideTracker, but I found that Function Health was much more relevant to my needs.

The first thing that stood out was the ease of the process. Function Health partners with Quest Diagnostics, making scheduling a lab appointment near me simple. After my blood draw, I received my results in a beautifully organized, intuitive, and easy-to-navigate dashboard. Unlike InsideTracker, which often left me digging through data and recommendations, Function Health laid everything out clearly, making it simple to understand my next steps.

I also appreciate that Function Health includes follow-up testing baked into the initial result period, so you have two data points to track progress. This is incredibly helpful for seeing trends and making more informed health decisions over time.

Function Health Review (and the Data You Get)

What I Liked About Function

1. Comprehensive Biomarker Testing

Function Health offers an extensive range of tests, including crucial markers for immune regulation, kidney and liver function, hormone balance, and more. This level of detail is invaluable for someone concerned about aging and overall health.

2. Better Dashboard & Insights

The Function Health dashboard is incredibly user-friendly. It provides actionable insights that are easy to digest, unlike InsideTracker’s more convoluted interface. Each biomarker includes clear explanations, reference ranges, and tailored recommendations.

3. More Relevant to My Concerns at 40

InsideTracker focuses heavily on athletic performance, which isn’t my main priority. Function Health, on the other hand, aligns with my current concerns—hormonal health, autoimmunity, and preventative care.

4. Easy Access & Affordable Compared to Traditional Testing

While at-home lab testing services can be really expensive, Function Health is reasonably priced ($499 for the year), especially considering the breadth of testing. Plus, you can use HSA/FSA funds to cover the cost.

5. Follow-Up Testing Included

One of the key standout features is that Function Health includes follow-up testing during the initial result period. This means you get two data points rather than just a one-time snapshot, helping to track progress and make more informed health decisions. I love that this is included with your initial purchase since follow-up testing is so crucial!

Pros & Cons

Pros

• Comprehensive biomarker testing covering a wide range of health concerns
• User-friendly dashboard with clear insights and recommendations
• More relevant for individuals focused on hormone and autoimmune health
• Convenient blood draw locations through Quest Diagnostics
• Affordable compared to traditional functional medicine testing
• HSA/FSA eligible
• Follow-up testing included, providing two data points for better tracking

Cons

• Requires a blood draw at a Quest Diagnostics location (not an at-home test)
• May be expensive for those who only need basic testing
• No direct one-on-one consultation with a healthcare provider included
• Some advanced add-on tests come at an extra cost
• The add-on tests add up VERY quickly

Who Is Function Best For?

Function Health is ideal for:

• Individuals in their 30s and 40s focused on preventative care
• Those with concerns about hormone balance, autoimmune conditions, or metabolic health
• People who want an in-depth look at their health beyond standard primary care blood tests
• Anyone who values clear, actionable insights rather than just raw data
• Those who don’t feel like they’re getting the testing and answers they want from other doctors. This can give information to help start a conversation that’s data-driven.

Is Function Worth the Splurge?

I believe Function Health is totally worth the investment. Many standard healthcare providers don’t run such extensive lab panels unless a specific issue arises. With Function Health, you get access to crucial markers that could help prevent issues before they start. If you want to take control of your health proactively, this is an invaluable tool. Use this Function link to get started.

Tests Included in Function Health

The $499 per year Function membership includes:

• 100+ lab tests* to start each year of membership. No insurance is involved.
• 60+ lab tests* 3-6 months later to see what’s changing.
• Insights from top doctors based on your results.
• Access to re-test as needed.
• Access to purchase non-routine tests (e.g. Lyme, STDs, allergies), as needed (I shared some of those add-ons below).

Here’s some of what their testing includes:

• Hormones: Estrogen, progesterone, testosterone, cortisol, thyroid hormones
• Metabolic Health: Glucose, insulin, A1C, cholesterol (HDL, LDL, triglycerides)
• Autoimmune Markers: ANA, inflammatory markers, immune regulation tests
• Liver & Kidney Function: AST, ALT, creatinine, BUN, eGFR
• Nutrient Levels: Vitamin D, calcium, magnesium, iron, folate
• Protein & Enzymes: Total protein, albumin, alkaline phosphatase
• Heavy Metals & Toxins: Lead, mercury, arsenic levels

Example Add-On Tests

Like I mentioned, you can also add on other tests:

• Extended Hormone Health
• MTHFR Gene Analysis
• Extended Heavy Metals
• Extended Autoimmunity
• Food Sensitivities
• Extended Vitamins, Minerals, and Nutrients
• Extended Heart and Metabolic
• Genetic Heart Risks
• Extended Thyroid Health
• Forever Chemicals (PFAS) Exposure
• Extended Immune Regulation
• Bone Health (Osteoporosis, Hyperparathyroidism, Myeloma)
• Brain Injury and Degeneration
• Chronic Inflammatory Response
• BPA (Bisphenol A) Exposure
• Alzheimer’s Early Detection
• Lyme Antibodies
• Viral Antibodies
• Comprehensive Thyroid Panel (including reverse T3)
• Advanced Autoimmune Testing (for deeper insights into immune function)
• Gut Health Markers (to assess digestion and absorption)
• Advanced Cardiovascular Panel (including ApoB, Lp(a), and inflammation markers)
• Heavy Metal Testing (expanded screening for additional toxic metals)
• Micronutrient Panel (to evaluate levels of essential vitamins and minerals)
• Comprehensive Hormone Panel (for a more detailed view of endocrine function)
• Inflammation & Oxidative Stress Markers (to measure chronic inflammation levels)
• Metabolic Function Testing (additional markers for insulin resistance and metabolic health)

More Insights

What sets Function Health apart is the depth of insights you receive. Unlike traditional lab tests that simply show whether a marker is in range or not, Function Health explains what each result means in the context of your overall health. It also provides recommendations for diet, supplements, and lifestyle changes to improve your numbers.

How Function Health Works

1. Sign Up & Order Your Tests – Choose from their comprehensive panels.
2. Schedule a Blood Draw – Visit a nearby Quest Diagnostics location.
3. Get Your Results – View them in the user-friendly dashboard.
4. Follow Recommendations – Implement changes based on expert insights.
5. Monitor Progress Over Time – Retest periodically to track improvements.

What Biomarkers Are Included?

Function Health covers over 100 biomarkers, including key indicators for:

• Hormonal health (estrogen, testosterone, thyroid hormones)
• Cardiovascular function (cholesterol, triglycerides, inflammation markers)
• Metabolic regulation (insulin, A1C, fasting glucose)
• Nutrient status (vitamin D, iron, magnesium)
• Liver & kidney function (AST, ALT, creatinine, eGFR)
• Autoimmune health (inflammatory and immune markers)

Final Thoughts

If you’re looking for a functional medicine approach to lab testing, Function Health is an excellent choice. It offers deeper insights into your well-being and provides a much better experience than InsideTracker in terms of relevance, interface, and actionable recommendations. Whether you’re concerned about hormones, autoimmunity, or general wellness, this service is a smart investment in your health.