you are
what you
eat.
drink.
breathe.
think.
believe.
and more.
Health begins by identifying the causes of your health concerns, not just medicating symptoms.
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Closed | Dec. 31, Jan. 1 & 2
Functional Medicine in San Antonio
BEGIN WITH THE QUESTION
Will Root Causes be right for me?
Our mission is to be an instrument of personal healing by effectively treating the underlying causes of disease.
Your unique genetics, environment, and life choices are affecting your overall well-being in complex ways. Functional medicine assessments and treatment plans can lead to prevention or improvement for a variety of illnesses.
Discover if functional medicine is right for you.
Prevention is a cure.
The seeds we plant now will grow into optimal health in the future. Let’s take a proactive approach to your health.
DON’T LIVE WITH
- Chronic Pain
- Stress and Fatigue
- Weight Issues
- Depression
- Skin Conditions
- Bad Habits
BEGIN WITH THE QUESTION
Whole-Body Healing That Lasts
Our mission is to be an instrument of personal healing by effectively treating the underlying causes of disease.
At Root Causes in San Antonio, we believe that healing should be holistic. This doesn’t mean we reject modern medical advancements – quite the opposite. It means we understand that emotions, mindsets, and beliefs also impact the immune system’s function.
The team embraces a three-part approach that helps us personalize functional medicine plans to your needs.
Targeted Therapeutics
From stem cells to hormone injections, we want to provide your body with the tools it needs to feel its best. However, some clinics end up throwing therapeutics at the problem without getting to know the patient or the product. At Root Causes, Dr. Guillory has personally vetted his therapeutics and only recommends them if he knows they might help.
Nourishment of Mind, Body, and Spirit
During consultations, the Root Causes team may discuss mental health, belief systems, and mindsets. While we fully respect every person who comes through our doors, we want you to understand how your thoughts and emotions impact your health. Stress and anxiety play a large role in immune response and hormone production. Let’s work toward holistic wellness.
Complete Detox
The body can’t heal if it’s loaded with toxins. These toxins might be emotional or chemical – it doesn’t matter. We need to clean up the body so that it can function the way it’s meant to. We will create a personalized detox plan tailored to you and your symptoms.
Meet Dr. Guillory
“Why am I sick?” It’s a question all patients ask, but it’s rarely answered. Derek W. Guillory, MD, founded Root Causes in San Antonio because he believes people like you deserve care that works. He doesn’t want to simply manage symptoms – he wants to set you on a path to true healing.
His love for functional medicine was born out of his own personal struggle with health concerns that began before the age of 17. Since then, he became a licensed MD and one of the first certified functional medicine practitioners in Texas in 2015. He has been continuously board-certified by the American Board of Emergency Medicine since 2005.
How Functional Medicine Brings You Relief
Functional medicine brings together the best of natural medicine and advanced technologies. Our San Antonio practitioners are driven by data, research, and patient results. Instead of promoting pain killers for a hurt shoulder, we’re going to see what hormones, imbalances, and immune cells need repairing. Take a look to see functional medicine in action.
Chronic Pain
Functional medicine helps individuals with chronic pain by identifying and addressing the root causes of their pain. Instead of merely prescribing painkillers, functional medicine practitioners conduct thorough assessments to uncover underlying issues such as inflammation, nutrient deficiencies, hormonal imbalances, or even emotional stress. By implementing personalized treatment plans that may include dietary changes, supplements, physical therapy, and mind-body techniques, patients can experience long-term relief and improved quality of life.
Stress and Fatigue
Chronic stress and fatigue often stem from multiple interconnected factors, including poor nutrition, sleep disturbances, hormonal imbalances, and lifestyle choices. Functional medicine practitioners work to identify these contributing factors through comprehensive evaluations. Treatment plans may include stress management techniques, dietary adjustments, exercise programs, and supplements to support adrenal function and energy levels. By addressing the whole person, functional medicine helps restore balance and vitality.
Weight Issues
Weight management in functional medicine involves more than just calorie counting. Dr. Guillory and his team assess factors like metabolic function, hormonal balance, gut health, and food sensitivities. We create individualized plans that may include tailored diets, exercise routines, and behavioral strategies to support sustainable weight loss and overall health. By focusing on the unique needs of each person, functional medicine can help individuals achieve and maintain a healthy weight more effectively.
Depression
Functional medicine approaches depression by exploring its multifaceted causes, such as nutrient deficiencies, inflammation, gut health, and hormonal imbalances. Rather than relying solely on antidepressants, practitioners develop comprehensive treatment plans that may include nutritional interventions, lifestyle changes, stress management techniques, and supplements to support brain health. This holistic approach can lead to significant improvements in mood and overall mental well-being.
Skin Conditions
Skin issues like eczema, acne, and psoriasis can often be linked to internal imbalances, including gut health, inflammation, and food sensitivities. Functional medicine practitioners identify these underlying factors through detailed assessments and testing. Treatment plans may involve dietary changes, gut healing protocols, and the use of natural skincare products. By addressing the root causes, functional medicine can lead to clearer, healthier skin.
Bad Habits
Breaking bad habits, such as smoking or unhealthy eating, can be challenging. Functional medicine provides a supportive framework for behavior change by identifying the underlying triggers and creating personalized strategies to address them. This may include nutritional support, stress reduction techniques, and behavioral therapy. By focusing on the whole person, functional medicine helps individuals overcome their bad habits and adopt healthier lifestyles.
Advanced Therapeutics for Optimal Health
Root Causes in San Antonio is at the forefront of innovative health care, utilizing advanced therapeutics to address a range of medical issues. We employ cutting-edge treatments such as stem cell therapy, Platelet-Rich Plasma (PRP) injections, and hormone replacement therapy. Stem cell therapy harnesses the body’s natural healing capabilities to regenerate damaged tissues, offering promising solutions for conditions like arthritis and chronic pain. PRP injections, derived from the patient’s own blood, are used to accelerate healing and reduce inflammation in injuries and degenerative conditions. Hormone injections help balance and optimize hormonal levels, addressing issues like fatigue, weight gain, and mood disorders.
By integrating these advanced therapies, Root Causes aims to treat the underlying causes of health problems.
PATIENTS WHO
TOOK CONTROL
OF THEIR HEALTH
Meet our caring practitioners.
Learn about our holistic approach.
Take the Next Step. Visit Our Functional Medicine Practice in San Antonio
Are you tired of conventional treatments that only address your symptoms without targeting the root cause of your health issues? At Root Causes in San Antonio, we offer a revolutionary approach to healthcare through advanced therapeutics such as personalized consultations, stem cells, PRP (Platelet-Rich Plasma), and hormone injections. Dr. Guillory and his team is dedicated to helping you achieve optimal health by addressing the underlying causes of your chronic pain and other health concerns.
Experience the future of medicine today and take the first step towards a healthier, more vibrant life. Sign up with Root Causes and discover how our innovative treatments can transform your well-being.

