Back to Blog
 

🔎 Navigating Functional and Integrative Medicine- The Pitfalls to Watch For

evidence based medicine functional medicine functional medicine practitioner functional medicine risks health advocacy holistic care holistic care risks independent health advocate integrative medicine laboratory tests medical decision making nutritional supplements practice of medicine Jul 10, 2025

Functional and Integrative medicine have gained significant popularity in recent years. The promise of treating the "root cause" of disease, personalizing care, and seeing the whole person rather than just a diagnosis is powerful — and I agree that these are valuable principles. However, there's another side to this trend that isn't often discussed.

As someone trained in both conventional medicine and functional medicine, I believe it's essential to discuss openly some of the limitations of this approach. The truth is, functional and integrative medicine can expose patients to expensive testing, questionable supplements, and sometimes even dangerous advice, especially when these practices ignore or dismiss conventional medical care. Let's break down what you need to watch for.

 

💰 Costly and Unnecessary Testing

 

One of the most significant problems in functional medicine is the explosion of advanced testing. These tests often sound impressive: "microbiome mapping," "genetic panels," "heavy metal profiles," or dozens of food sensitivities. However, many of these tests lack robust, validated scientific backing and are not covered by insurance. Patients have to pay out of pocket. These tests can cost hundreds or even thousands of dollars. So it's essential to be aware of this potential cost upfront.

In some cases, these test results may not significantly alter the course of treatment, or the treatment may not be supported by substantial evidence. That's why it's essential to ask:


✅ Is this test validated, and how useful will it be in clinical decision-making?
✅ Is it covered by my insurance, and if not, why?

✅ How will this test change my treatment?

If you cannot obtain clear answers, proceed with caution. ⚠️

 

🧠 Not All Practitioners Are Physicians

 

Another area of confusion is who is providing integrative or functional medicine. Many practitioners in this space are not licensed physicians. They may refer to themselves as "functional medicine practitioners," "health or wellness coaches," "anti-aging specialists," or "wellness experts." Still, their training can be minimal, often consisting of just a few weekend courses.

No doubt, I am aware that there are talented, ethical non-physician practitioners out there. However, when someone is diagnosing, interpreting lab results, or recommending treatments with significant impacts, you want to ensure they have the appropriate training.

In most U.S. states, the "practice of medicine" is legally defined as:

“Diagnosing, treating, operating on, or prescribing for any physical or mental condition, disease, pain, injury, deformity, or ailment of another person.”

This definition often includes:

  • Ordering or interpreting diagnostic tests

  • Prescribing medications or treatments

  • Making a formal diagnosis

  • Providing treatment recommendations based on clinical evaluation

Only licensed physicians (MDs or DOs) are legally permitted to practice medicine. Other licensed providers (such as nurse practitioners, PAs, and chiropractors) may practice within the scope of their licensure. Still, non-licensed individuals — including some "health coaches" or "wellness consultants" — may cross legal lines if they interpret lab results, diagnose illnesses, or treat them without proper training and certification.

 

Always verify credentials, education, and licensure, especially if you are being told to stop prescription medications or undertake drastic lifestyle changes. 📋

 

💊 The Supplement Trap

 

In Functional and Integrative medicine, supplements are often part of the treatment plan. Sometimes they can be helpful — for example, micronutrients in patients who are deficient, or probiotics for certain gut conditions, or nutraceuticals to combat systemic inflammation. But some functional providers recommend a long list of supplements that can be costly and unnecessary.

In some practices, supplements are a business model. The practitioner might sell their private label supplements, earning a profit every time you reorder from them. This could create a potential conflict of interest. Your practitioner must divulge to you that they are making a profit when you purchase from them, as well as offering you the option to buy elsewhere. It's also essential to ensure that the recommended supplements are genuinely effective.

Remember that just like over-the-counter or prescription drugs, supplements are not risk-free. They can interact with prescription drugs, and other supplements, have side effects, or be contaminated with unsafe ingredients. If you are advised to buy large numbers of supplements, pause and ask:

✅ Why do I need these?
✅ For how long will I be taking them?
✅ Are they tested and regulated?

And if your practitioner cannot answer those questions confidently, that is a warning sign. 🚩

 

💳 Subscription-Based Programs

 

Many functional and integrative clinics have moved toward subscription models. Instead of paying for each appointment, you might be asked to pay for a yearlong membership program. The pitch is that you'll have better access, more personalized care, and a team approach. And all of this may be true. But the downside is that some of these programs may cost thousands of dollars. It's not always clear whether you can use your HSA or FSA funds to cover this expense. 

While there can be value in this approach, some individuals end up locked into programs that fail to deliver on their promises or discover that they must also pay for additional products that don't meet their needs. If you are signing up for an expensive subscription, read the contract carefully, ask what exactly is included, and ensure you understand whether you can cancel if the services do not meet your needs.

 

❌ Ignoring Conventional Care

 

Perhaps the most concerning issue is when functional or integrative practitioners actively discourage conventional treatments, particularly for serious illnesses like cancer.

I have seen patients advised to skip chemotherapy or avoid standard treatments for chronic conditions, and told instead to rely on supplements, diets, or other "natural" therapies. And in nearly all of those cases, these patients have ended up with far more serious complications or even died! 

Functional and Integrative medicine should complement evidence-based care, not replace it. You deserve a practitioner who supports the best of both worlds: a team approach, rooted in science, while still respecting the value of lifestyle interventions such as whole nutrition, good quality sleep, stress management, and mind-body healing and the appropriate use of nutritional supplementation.

If anyone tells you to stop chemotherapy, avoid standard medications for treatment of chronic illnesses, or refuse vaccines without a strong, evidence-based rationale, be very skeptical.

 

🧰 My Role as a Health Advocate

 

As an independent health advocate trained in both conventional and functional medicine, I understand both the value and the potential for overwhelm that functional medicine can bring. Patients are desperate to find a cause for their illness, which may have escaped the diagnosis of conventional medicine. And so they may feel that there is a benefit to pursuing expensive tests, numerous supplements, or long-term memberships.

The truth is, there are no guarantees that any of this might help them. 

I can help clients find the right practitioner, screen them by asking the right questions, check the evidence, and make safer, more cost-effective choices.

By hiring an independent health advocate, you gain a trusted partner you can use as a sounding board to guide you through confusing recommendations and protect both your health and your budget. 💰

If you're exploring functional or integrative medicine and want clear, unbiased advice, consider working with me as your health advocate. I can help prioritize your interests and concerns.

 

🏁 Final Thoughts

 

Functional and integrative medicine have great potential — but they can also be misused. Expensive testing, questionable supplements, and anti-conventional beliefs can harm patients, especially those with severe conditions. You deserve a balanced, open-minded partner who listens to you, respects your values, and practices safely and ethically.

Misinformation abounds, but your health is too important for anything less than the best. 

If you're considering Functional or Integrative Medicine and want help deciding what's right for you, schedule a free 30-minute call with me today to see how I can assist you. ☎️

 

Don't miss a beat!

New moves, motivation, and classes delivered to your inbox. 

We hate SPAM. We will never sell your information, for any reason.