Functional & Regenerative Medicine · Root Cause Medicine · Puerto Vallarta, Mexico
Why Choose Begin Again
Patients choose Begin Again because we focus on identifying the biological drivers of chronic illness rather than simply managing symptoms. Our clinic combines functional medicine, regenerative therapies, and advanced treatment protocols to support deep healing and cellular restoration
Treatment Programs
Each program is individually tailored based on comprehensive functional diagnostics and your unique biological profile.
Meet Your Physician
CEO, Founder & Medical Director
Begin Again
Dr. Susana Zúñiga specializes in functional and regenerative medicine, focusing on the treatment of chronic inflammatory conditions, immune dysregulation, and complex chronic illnesses. Her approach integrates advanced therapies with personalized treatment protocols designed to restore long-term cellular health.
Education & Certifications
Medical Degree (M.D.)
Faculty of Medicine – Universidad de Guadalajara
Certification in Functional Medicine
Institute for Functional Medicine (IFM) — Candidate / Practitioner
Advanced Training in Regenerative Medicine
Stem cell therapy, PRP, and regenerative protocols — International Regenerative Medicine Society
Specialization in Environmental & Integrative Medicine
Biotoxin illness, mold-related illness (CIRS), and chronic infection protocols
International Society for Environmentally Acquired Illness (ISEAI)
Chronic inflammatory response syndrome and complex chronic disease
Clinical Focus: 10+ Years
Chronic fatigue, autoimmune conditions, mold illness, Long COVID, and complex chronic disease
The Process
STEP
1
A comprehensive initial consultation to understand your complete health history, symptoms, and goals.
STEP
2
Advanced laboratory testing to map biological dysfunction, identify toxic burden, and assess mitochondrial and immune status.
STEP
3
A customized treatment protocol designed specifically around your biological findings, goals, and chronic illness pattern.
STEP
4
Active implementation including regenerative treatments, detox support, and ongoing monitorin
Patient Testimonials
Frequently Asked Questions
Functional medicine investigates the biological root causes of disease — including toxic burden, nutritional deficiencies, hormonal imbalances, chronic infections, and immune dysfunction — rather than simply suppressing symptoms with medication. At Begin Again, every patient receives a comprehensive functional evaluation before any treatment protocol is designed.
Stem cell therapy at Begin Again is administered under strict medical supervision using evidence-based regenerative protocols. Most patients experience minimal discomfort during the procedure. Results vary based on individual biological status and the condition being treated. Dr. Zúñiga reviews all indications, contraindications, and expected outcomes during your medical consultation before any regenerative therapy begins.
Your initial consultation with Dr. Zúñiga includes a comprehensive review of your medical history, symptom timeline, previous diagnoses and treatments, lifestyle factors, and biological systems assessment. Based on this consultation, she will recommend the appropriate functional laboratory testing and outline a preliminary treatment direction. The goal of the first visit is to understand your complete clinical picture before recommending any protocol.
Still have questions?
Every patient’s situation is unique. Book a consultation and Dr. Zúñiga will personally review your case and answer your questions.
Online Booking
Select a date and time that works for you. Our team will confirm your appointment and send preparation instructions before your visit.
Begin Your Journey
Take the first step toward understanding and resolving the root causes of your chronic illness.
322-227-0595
Boulevard Francisco Medina Ascencio, Local C-21
Contact Us
Tell us briefly about your situation and our team will respond promptly.
QUICK RESPONSE
For urgent matters or immediate response, contact us via WhatsApp
OFFICE HOURS
Monday – Friday
9:00 am – 6:00 pm
Saturday: by appointment
Contact
ADDRESS
Boulevard Francisco Medina Ascencio
Local C-21, Puerto Vallarta, Jalisco
Monday – Friday: 9:00 am – 6:00 pm
Saturday: by appointment
FIND US ON GOOGLE
Functional Medicine
Functional medicine in Puerto Vallarta focuses on identifying and addressing the root causes of chronic disease rather than simply managing symptoms. We investigate the full biological picture — from genetics and environment to nutrition and immune function.
Our regenerative stem cell therapy protocols utilize the body’s own biological repair systems to address tissue damage, immune dysregulation, and systemic inflammation. Begin Again’s stem cell program is specifically designed for patients with chronic fatigue, Long COVID, autoimmune disorders, and complex chronic illnesses who have not found resolution through conventional medicine. By targeting the cellular environment, we support lasting recovery from the inside out.
Chronic fatigue and Long COVID share common biological pathways: mitochondrial dysfunction, immune dysregulation, neuroinflammation, and persistent viral burden. At Begin Again, we apply a comprehensive functional medicine evaluation to identify the specific drivers in each patient and develop a targeted recovery program combining regenerative therapies, IV nutrition, and immune modulation protocols — restoring energy, cognitive function, and systemic resilience.
Mold illness and environmental toxin exposure are among the most underdiagnosed causes of chronic fatigue, neurological symptoms, chemical sensitivity, and immune dysfunction. Our Mold Illness Detox program combines mycotoxin testing, targeted binders, mitochondrial support, and cellular regeneration protocols to safely reduce toxic burden while restoring immune and nervous system function. Many of our patients travel internationally specifically for this specialized detoxification program.
Chronic Fatigue Syndrome (ME/CFS) is one of the most debilitating and least understood conditions in modern medicine. At Begin Again, we apply a systems-biology approach to identify the specific biological mechanisms driving each patient’s fatigue — including mitochondrial dysfunction, HPA axis dysregulation, gut dysbiosis, chronic low-grade infections, and neuroinflammation. Our multi-modal treatment protocols combine regenerative medicine, nutritional IV therapy, and targeted immune support to restore cellular energy production and systemic resilience — helping patients reclaim function and quality of life that conventional care has been unable to provide.
