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“All disease begins in the gut”

— Hippocrates

Welcome to a place focused on true Functional Medicine, offering a clear path for those seeking lasting health. Whether in excellent health and aiming to maintain it, managing a chronic condition while searching for underlying causes, or experiencing unexplained symptoms that remain unresolved, this approach provides a thorough and personalized evaluation.

Dr. Kozlowski looks beyond symptoms to understand the full picture of health. Instead of quick fixes or generic solutions, care is tailored to each individual’s unique needs. This includes a detailed review of health history, lifestyle, nutrition, stress, environment, and more, aiming to identify patterns and root causes that may have been overlooked.

This method avoids overwhelming recommendations or excessive supplements. Instead, it offers a step-by-step plan, grounded in science and focused on restoring balance in body and mind. The goal is not just the absence of disease, but vibrant, lasting well-being.

We blend the best of conventional and holistic care, using evidence-based strategies to support the body’s natural healing abilities. Each plan is personalized, practical, and designed to empower individuals on their health journey.

Dr. Kozlowski has 10+ years using specialized/personalized Functional Medicine testing. We have treated many patients who have been from doctor to doctor with years of symptoms feeling unwell, but recurrently being told they are “normal.” Tests that we have experience ordering include;

  • Genomics via IntellXXDNA to identify patients at risk for Autism, ADHD, OCD, Dementia, Brain health, Inflammation, Vitamin deficiencies, Cardiovascular disease, Osteoporosis, Methylation issues, Detox issues, Histamine Sensitivty, Celiac, Diabetes, response to Blood pressure medications, Psychiatric medications, Estrogen imbalances, Infertility, Endometriosis, IVF failure, Anesthesia Response, Coagulation/DVT, Thyroid: Free T4 to Free T3, Hemochromatosis, Macular Degeneration, Melanoma Opioid and Pain Response, Statin Response and Toxicity, & Addiction & Substance Use Disorder

  • Function Health

    • Dr. Kozlowski is a clinical writer for Function Health and highly recommends getting comprehensive lab work done with them.

  • Cardiac

    • Cleerly Analysis; CT Scan identifying non-calcified coronary plaques using Coronary CT & Artificial Intelligence

    • Advanced Lipid Testing

    Food Sensitivities & Nutrition via OAT

  • Gut

    • SIBO (Small Intestine Bacterial Overgrowth)

    • Comprehensive stool analysis; identifying microbiome imbalances like dysbiosis, candida, parasites, pancreatic function, gut inflammation, and leaky gut

    • Organic Acid Testing (OAT); identifying dysbiosis, due to candida, clostridia, and other bacterial dysbiosis

  • Heavy Metals

  • Mold Mycotoxins

  • Glyphosate, Phthalate, VOC, Tox Testing

  • Mitochondrial function via OAT

  • Cancer Screening using the GRAIL test

  • Hormones

    • Adrenals

    • Thyroid

    • Estrogen/Progesterone/Testosterone

    • Estrogen Metabolism

 

Gut Health Simplified

Dr. Kozlowski’s first book is a great introduction to what Functional Medicine is and how we approach health.

Have you had a hard time figuring out which diet is right for you? Have you been confused how half your friends could be vegan and the other half carnivore? Or why their is a new diet trend every year?

Have you been told you have IBS and are not sure what that even is? Do you poop at least once a day? If you don’t, have you ever tried to figure out why? Do you have gut issues and been told to take a probiotic without success? Have you ever wondered why Hippocrates said all disease begins in the gut? Did you know the most common condition Dr. Kozlowski treats is SIBO? Did you know SIBO stands for Small Intestine Bacterial Overgrowth?

Gut health does not have to be difficult. In Unfunc your Gut all these questions will be answered and more!

Poop. Pee. Sweat.

Do you have or know someone who has hormonal imbalances like low thyroid, adrenal fatigue, blood sugar issues, low testosterone, or estrogen dominance, or infertility? Have you ever wondered why so many people have hormone imbalances?

Do you ever worry about our increasingly toxic environment? The heavy metals like lead and mercury, mold, the toxins we spray on our food like glyphosate (from Roundup). Did you know the average person is exposed to over 100 toxic chemicals every day just through personal care products?

In Dr. Kozlowski’s second book you will learn all about hormones, how to properly test them and rebalance your hormones. You will also learn about why our toxic environment is the likely culprit for many of the hormone issues people experience. As well as how toxins can affect all aspects of your health. A plan to detox is provided for you as well as an explanation of what testing you need.

 

About Us.

Doc-Koz is a true small family business, working with his wife Mackenzie. Learn more about us and why we are so different than any other medical practice.

Meet us »

 

What Conditions do we work with?

Dr. Kozlowski has experience with working with people of all ages and backgrounds, from infants with constipation or eczema, children with autism, adults with autoimmune disease, to elderly with dementia. We are comfortable working with any chronic conditions

Media.

Check out Podcasts, Lectures, and informational videos Dr Kozlowski has been featured in.

Watch & listen »

Welcome to the RootCause Health Academy

Welcome to the RootCause Health Academy

Root Cause Health Academy by Dr. Peter Kozlowski, an award-winning author and renowned functional medicine doctor, is an online school dedicated to transforming the approach to chronic disease management. The academy offers comprehensive functional medicine training that delves deep into uncovering and addressing the root causes of chronic illnesses. Designed for both patients and practitioners, the courses at Root Cause Health Academy provide practical, evidence-based strategies that empower learners to apply functional medicine principles in real-world scenarios. Whether you're a healthcare professional looking to enhance your practice or an individual seeking to take control of your health, the academy offers valuable insights and tools to promote long-lasting well-being. Dr. Kozlowski’s expertise and passion for holistic healing make this a unique and transformative learning experience.

FREE