Functional Medicine in San Diego, CA
At Thrive Wellness, our functional medicine program identifies and addresses the root causes of chronic illness — not just the symptoms. Led by Caitlin Fuller, MSTOM, HHP (Kresser Institute ADAPT) and Dr. Adam Fuller, DAOM (Kalish Institute), our San Diego, CA team uses advanced lab testing and personalized treatment protocols to resolve the conditions that conventional medicine too often manages indefinitely. Call (619) 984-4317 or book a free initial telehealth consultation to get started.
Book OnlineWhat Is Functional Medicine?
Functional medicine is a patient-centered, science-based approach to healthcare that investigates why illness develops — not just what to call it. Where conventional medicine asks “What disease do you have and what drug treats it?”, functional medicine asks “What underlying imbalances in your genetics, environment, diet, gut health, hormones, and lifestyle are driving your symptoms?” By answering that question, we can build a protocol that addresses causes rather than masking effects.
At Thrive Wellness, functional medicine is never siloed. It integrates naturally with Acupuncture & Sports Medicine for stress regulation, hormonal support, and nervous system recovery; with Therapeutic Massage for cortisol reduction and parasympathetic activation; and with EMDR Therapy & Counseling for patients whose chronic conditions have significant psychological and trauma dimensions. This collaborative approach is what distinguishes Thrive Wellness from practices that offer functional medicine in isolation.
What Functional Medicine Helps
Our functional medicine team treats a wide range of complex, chronic, and often underdiagnosed conditions. Explore the condition areas most relevant to you:
- Fatigue & Low Energy — adrenal dysfunction, post-viral fatigue, chronic fatigue syndrome
- Thyroid Issues — hypothyroidism, Hashimoto’s, subclinical thyroid dysfunction
- Hormone Imbalance, PMS, Perimenopause & Menopause
- Weight Loss Resistance & Metabolism
- Autoimmune Conditions & Inflammation
- Low Libido & Hormonal Health
- Bloating & Digestive Discomfort
- Irritable Bowel Syndrome (IBS)
- Food Sensitivities & Allergies
- Blood Sugar & Insulin Resistance
How It Works: The Functional Medicine Process
Step 1 — Free Initial Telehealth Consultation: A complimentary 30-minute call to discuss your health history, goals, and whether functional medicine is the right fit. No commitment required.
Step 2 — Comprehensive Initial Consultation (90–120 min): An in-depth intake covering your complete health history, family history, symptom timeline, diet, lifestyle, stress, sleep, previous diagnoses, medications, and health goals.
Step 3 — Functional Lab Testing: Based on your intake, we order the most clinically relevant tests — comprehensive stool analysis, SIBO breath testing, full thyroid panels, sex hormone and adrenal assessment, food sensitivity panels, nutrient status testing, and more.
Step 4 — Personalized Treatment Protocol: Your practitioner builds a protocol addressing each identified imbalance with dietary modifications, professional-grade supplementation, herbal medicine, gut healing protocols, hormone support, and lifestyle guidance.
Step 5 — Follow-Up & Monitoring: Every 2–4 weeks initially, then monthly and quarterly as you stabilize. Protocols are adjusted as your body responds and labs improve.
Pricing & Packages
Free initial telehealth consultation: $0. Initial consultation & lab review: $600. Single follow-up: $300. Follow-up packages (3 sessions: $750 / 6 sessions: $1,200) are available for patients working through a full protocol. Integrative Care Packages combining monthly acupuncture with functional medicine follow-ups are also available at a discounted rate. All services covered by HSA and FSA. Visit our Pricing & Packages page or call (619) 984-4317 for full details.
Functional Medicine FAQs
What makes Thrive Wellness’s functional medicine different?
Thrive Wellness in San Diego, CA offers dual-practitioner expertise — Caitlin Fuller trained through the Kresser Institute ADAPT program and Dr. Adam Fuller certified through the Kalish Institute — giving patients access to a broader collective knowledge base than a single practitioner can provide. Functional medicine at Thrive Wellness is also genuinely integrated with acupuncture, therapeutic massage, and mental health care rather than offered in isolation, producing outcomes that purely functional medicine clinics cannot match for complex, multisystem conditions.
Is the free consultation really free?
Yes — Thrive Wellness offers a complimentary 30-minute initial telehealth consultation for all new functional medicine patients. This call lets you discuss your health history and goals before committing to any testing or protocol. No obligation. Call (619) 984-4317 or visit our Initial Consultation page to schedule.
How is functional medicine testing different from standard bloodwork?
Standard primary care bloodwork uses conventional reference ranges and tests a limited panel of markers. Functional medicine testing at Thrive Wellness uses optimal ranges, orders comprehensive panels not available through standard primary care — including full thyroid antibody panels, diurnal cortisol curves, comprehensive stool microbiome analysis, and organic acids testing — and interprets results in the context of your complete clinical picture, not just whether each value falls within a reference range.
Can functional medicine help if I’ve been told everything is normal?
Yes — this is precisely the situation functional medicine is designed for. Standard testing misses a significant number of imbalances that produce real, debilitating symptoms. At Thrive Wellness, comprehensive functional testing regularly identifies drivers of fatigue, brain fog, digestive dysfunction, hormonal symptoms, and pain that standard labs have failed to capture — giving patients, often for the first time, a clear explanation for their symptoms and a targeted path to improvement.
Does functional medicine work alongside conventional medical care?
Yes — Thrive Wellness‘s functional medicine approach is designed to complement conventional care, not replace it. We never recommend discontinuing prescribed medications without coordination with your prescribing physician. For many patients, functional medicine produces objective improvements — reduced inflammatory markers, normalized thyroid function, improved hormonal balance — that their conventional providers can track and respond to appropriately.
How long does it take to see results with functional medicine?
Most patients at Thrive Wellness notice meaningful improvement within 6–12 weeks of starting a personalized protocol. Complex chronic conditions — Hashimoto’s, SIBO with leaky gut, metabolic syndrome, longstanding hormonal imbalance — typically take 3–6 months for full resolution. Your practitioner sets realistic expectations at your initial consultation and monitors progress through follow-up testing.
Are functional medicine services at Thrive Wellness covered by HSA or FSA?
Yes — all functional medicine services at Thrive Wellness are covered by HSA and FSA accounts. Discounted follow-up packages and integrative care packages are available. Visit our Pricing & Packages page or call (619) 984-4317 in San Diego, CA .