Functional Medicine

Functional Medicine Services in St. Charles, MO

Personalized, Root-Cause Solutions

At Complete Performance Chiropractic, we offer Functional Medicine as a personalized, root-cause approach to health care. Unlike conventional medicine—which often focuses on managing symptoms—functional medicine digs deeper. We investigate the underlying causes of your health concerns to help you feel better, for good.

What Is Functional Medicine?

Functional medicine looks at the body as one integrated system rather than a collection of independent organs. It identifies how genetics, environment, nutrition, and lifestyle interact to impact your health.

This approach helps uncover the why behind your symptoms, allowing us to build a customized plan that supports long-term healing—not just short-term relief.

Dr. Eric Leitman Functional Medicine St. Charles, MO

Why Patients Choose Functional Medicine

  • You’re tired of temporary fixes and want real answers.

  • You’ve seen multiple doctors but still don’t feel well.

  • You’re dealing with chronic symptoms that conventional medicine hasn’t resolved.

  • You want a doctor who listens, takes their time, and treats the whole you.

At Complete Performance Chiropractic our process includes extended consultations, advanced lab testing, and a treatment plan tailored specifically to you. We don’t use cookie-cutter solutions because your health isn’t one-size-fits-all.

Functional Medicine St. Charles MO

What Functional Medicine Can Help You With

Functional medicine is designed to uncover and treat the deeper causes of chronic health challenges—not just manage the symptoms. Some of the most common root issues we address include:

  • Nutritional deficiencies & poor diet

  • Chronic stress & burnout

  • Digestive issues (IBS, bloating, leaky gut)

  • Sleep deprivation & poor quality sleep

  • Depression, anxiety, & mood instability

  • Unresolved trauma & emotional stress

  • Hormonal imbalances & detox issues
Comparison Functional Medicine vs Traditional Medicine Info

Functional Medicine vs. Traditional Medicine: What’s the Difference?

Traditional medicine focuses on diagnosing and treating symptoms—often using medications or surgery to manage acute issues as they arise. While this can be effective for emergencies or short-term relief, it rarely explores why the problem started in the first place.

Functional medicine takes a more comprehensive approach. Instead of treating isolated symptoms, it looks at the full picture—your genetics, lifestyle, environment, nutrition, stress levels, and more. The goal is to uncover and address the root causes of chronic health problems, not just mask them.

Where traditional medicine often stops at prescriptions, functional medicine may include:

  • Nutritional and lifestyle changes

  • Environmental detoxification

  • Stress management and sleep optimization

  • Advanced lab testing and personalized supplementation

Your functional medicine doctor will take the time to understand your full story—your physical, mental, and emotional health—so your care plan fits you.

Most patients feel the difference right away—finally being heard, understood, and guided toward real healing.

Functional Medicine Dr. Eric Leitman DC

Frequently Asked Questions (FAQs) About Functional Medicine

1. What is functional medicine?

Functional medicine is a patient-centered approach that focuses on identifying and addressing the root causes of health issues. It sees the body as one interconnected system and uses personalized plans to restore wellness.

Conventional medicine typically treats symptoms with medication or procedures. Functional medicine goes deeper—investigating how genetics, diet, lifestyle, and environment contribute to illness and imbalance.

Functional medicine is effective for a wide range of chronic conditions, including:

  • Autoimmune disorders (e.g., Hashimoto’s, rheumatoid arthritis)
  • Digestive issues (e.g., IBS, Crohn’s disease)
  • Hormonal imbalances (e.g., thyroid disorders, PCOS)
  • Chronic fatigue and fibromyalgia
  • Metabolic problems (e.g., obesity, diabetes)
  • Mental health concerns (e.g., depression, anxiety)

Functional medicine often focuses on identifying and addressing the root causes of health issues rather than merely treating symptoms. This approach aims for a deeper understanding of the body’s interconnected systems, seeking to restore balance and promote overall wellness. However, insurance companies typically cover conventional medical treatments that primarily target symptoms rather than investigating and addressing underlying causes.

Insurance companies determine what is considered “medically necessary” based on established standards of care. Functional medicine often employs advanced testing, personalized treatment plans, and extended consultation times, which may not align with these conventional standards. As a result, many functional medicine practices are labeled as “not medically necessary,” even if they lead to meaningful, long-term improvements for patients.

This restriction can limit the quality of care, as insurance-driven healthcare often emphasizes quick, standardized solutions. In contrast, functional medicine requires a comprehensive, individualized approach, which may not fit within the rigid frameworks of insurance policies.

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