Why Choose Begin Again?
At Begin Again, your biology guides the protocol.
Personalized Treatment Plans
Custom care strategies designed around your unique biology, history, and goals.
Functional & Integrative Medicine
Combining the best of conventional and functional approaches for comprehensive care.
Regenerative & Cellular Therapies
Advanced therapies that support the body's natural healing and repair mechanisms.
Preventive Wellness & Healthy Aging
Proactive strategies to maintain vitality, prevent disease, and age well.
Personalized Care For Chronic Conditions & Wellness Optimization
Support mental clarity, memory, and cognitive function through targeted functional medicine protocols.
Learn MoreAddress chronic fatigue, burnout, and low vitality by identifying and treating root causes.
Learn MoreReduce joint pain and systemic inflammation through regenerative and integrative approaches.
Learn MoreHeal the gut lining, rebalance the microbiome, and relieve bloating, IBS, and digestive discomfort.
Learn MoreModulate immune response, reduce chronic inflammation, and support autoimmune conditions.
Learn MoreEnhance vitality, cellular health, and overall wellness for graceful, active aging.
Learn MoreSupport nervous system health, cognitive function, and neuropathy recovery through advanced care.
Learn MoreOptimize metabolic function and support healthy weight loss through personalized protocols.
Learn MoreSpecialized Programs
Lyme Disease Program
Comprehensive protocols for Lyme disease, tick-borne infections, and associated chronic symptoms.
Mold Illness Program
Targeted treatment for mold toxicity, mycotoxin exposure, and environmental illness.
Autoimmune Support Program
Root-cause approach to calm immune overactivity and support remission in autoimmune conditions.
Regenerative Joint Health
Non-surgical regenerative therapies for joint repair, pain relief, and improved mobility.
Healthy Aging & Longevity
Proactive protocols to maintain vitality, cellular health, and quality of life across the lifespan.
Metabolic Restoration
Personalized programs to optimize metabolism, balance blood sugar, and support healthy weight.
Dra. Susana Zúñiga
Founder & Medical Director, Begin Again
She is dedicated to helping patients navigate complex health challenges through a personalized and comprehensive approach to care.
Drawing from functional medicine, regenerative therapies, and advanced wellness strategies, she works closely with each patient to understand their unique health history, identify underlying imbalances, and develop individualized treatment plans that support long-term well-being.
Her philosophy is simple: every patient deserves to be heard, understood, and cared for as a whole person — not just a collection of symptoms.
What Our Patients Say
Your Journey Begins Here.
Your path to renewed health, clarity, and vitality starts with a single conversation.
Saturday: by appointment
For patients who have tried everything and are still searching for answers
Functional & Regenerative Medicine · Root Cause Medicine · Puerto Vallarta, Mexico
Why Choose Begin Again
We don't just treat symptoms.
We investigate the Root Cause
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
Specialized Programs for Complex Chronic Conditions
Each program is individually tailored based on comprehensive functional diagnostics and your unique biological profile.
Meet Your Physician
Dr. Susana Zúñiga
CEO, Founder & Medical Director
Begin Again
Her Approach
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
Your Treatment Journey
STEP
1
Medical Consultation
A comprehensive initial consultation to understand your complete health history, symptoms, and goals.
STEP
2
Functional Evaluation
Advanced laboratory testing to map biological dysfunction, identify toxic burden, and assess mitochondrial and immune status.
STEP
3
Personalized Protocol
A customized treatment protocol designed specifically around your biological findings, goals, and chronic illness pattern.
STEP
4
Therapeutic Program
Active implementation including regenerative treatments, detox support, and ongoing monitorin
Patient Testimonials
What Our Patients Are Saying
Frequently Asked Questions
Questions Patients Ask Before Their First Visit
What is functional medicine and how is it different from conventional medicine?
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.
Is stem cell therapy safe? What should I expect?
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.
What does the initial consultation include?
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?
Talk directly with our medical team.
Every patient’s situation is unique. Book a consultation and Dr. Zúñiga will personally review your case and answer your questions.
Online Booking
Book Your Consultation
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
Start Your Health Transformation
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
Have Questions Before Booking?
Tell us briefly about your situation and our team will respond promptly.
QUICK RESPONSE
Prefer to Talk Directly?
For urgent matters or immediate response, contact us via WhatsApp
OFFICE HOURS
Monday – Friday
9:00 am – 6:00 pm
Saturday: by appointment
Contact
Visit Us or Get in Touch
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
Addressing Root Causes of Chronic Disease
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.
Stem Cell Therapy for Chronic Illness
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 & Long COVID Recovery
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 Detox & Environmental Toxin Recovery
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: Beyond Conventional Treatment
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.
Conditions We Address
Chronic Fatigue / Long COVID
- Autoimmune Disorders
- Hormonal Imbalance
- Digestive Disorders
- Chronic Inflammation
- Metabolic Dysfunction
- Mold Illness / Heavy Metal Toxicity
- Lyme Disease / Epstein-Barr Virus
Systems We Restore
Mitochondrial Health
- Detoxification Pathways
- Immune Function
- Metabolic Regulation
- Inflammatory Processes