Dr. Garth Davis, MD, is a double board-certified bariatric surgeon and obesity medicine doctor in Houston, Texas. Dr. Davis is nationally recognized for redefining weight loss and metabolic health through a science-driven, longevity-focused approach. Practicing as an affiliate of TLC Surgery, Dr. Davis combines advanced weight loss surgery, medical weight management, and plant-based nutrition to help patients achieve sustainable weight loss and long-term health.
With more than 10,000 bariatric procedures performed, Dr. Davis is one of the most experienced weight loss surgeons serving the Greater Houston area. His care model goes beyond the scale, addressing metabolic disease, inflammation, and lifestyle factors that influence longevity and quality of life.
Dr. Davis is certified by the American Board of Surgery and is a Fellow of both the American College of Surgeons (FACS) and the American Society for Metabolic and Bariatric Surgery (FASMBS)—credentials that reflect the highest standards in bariatric care.
With over two decades of experience and more than 10,000 weight loss surgeries, Dr. Davis has treated a full spectrum of obesity-related conditions, from complex revision cases to primary bariatric procedures.
Dr. Davis is Da Vinci® robotically trained, utilizing minimally invasive and robotic bariatric surgery to enhance precision, reduce complications, and support faster recovery times for patients.
After operating for several years at Houston Methodist Hospital, one of the nation’s top-ranked hospitals, Dr. Davis joined TLC Surgery to expand his integrated approach to surgical and medical weight loss. His reputation is built on outcomes, integrity, and long-term patient success.
Dr. Davis provides both surgical and non-surgical weight loss solutions, allowing patients to choose a path aligned with their health goals and medical needs.
Gastric Sleeve Surgery (Sleeve Gastrectomy)
Gastric Bypass (Roux-en-Y)
SADI-S (Single Anastomosis Duodenal-Ileal Bypass with Sleeve Gastrectomy.)
Revision Bariatric Surgery
Physician-supervised medical weight management
Insurance & Cash-Pay Options
Metabolic evaluations and body composition analysis
Nutrition and lifestyle optimization
Dr. Davis is a nationally recognized leader in nutrition science and longevity-focused medicine, known for integrating evidence-based dietary strategies into modern surgical and medical weight loss care. His approach is not about labels or rigid eating philosophies, it’s about using high-quality science to improve metabolic health, reduce disease risk, and support long-term results after weight loss surgery.
Proteinaholic: How Our Obsession with Meat Is Killing Us and
Dr. Davis is the author of the bestselling book: Proteinaholic: How Our Obsession with Meat Is Killing Us and What We Can Do About It
In Proteinaholic, Dr. Davis examines the role of excessive animal protein consumption in obesity, heart disease, diabetes, and other chronic conditions. Drawing from global epidemiology, clinical research, and real-world patient outcomes, the book challenges common nutrition myths and encourages a more balanced, whole-food approach to eating, one that prioritizes metabolic health, sustainability, and longevity.
While widely known for his research and advocacy around plant-forward nutrition, Dr. Davis tailors dietary guidance to each individual patient. His focus is not perfection or restriction, but practical, achievable nutrition strategies that support recovery, weight loss, and long-term health whether patients follow a fully plant-based diet or a more flexible, mixed approach.
Dr. Davis’s work and research have been featured in:
National podcasts, interviews, and medical conferences
Dr. Davis gained national recognition as a featured surgeon on TLC’s television series “Big Medicine,” where he was known for his compassionate, patient-first approach to bariatric care.
Professional Highlights
Bariatric Surgeon, TLC Surgery – Houston, TX
Former Medical Director, Memorial Hermann Weight Management Center
Former Medical Director, Mission Hospital Weight Management Center
Author of Proteinaholic and The Expert’s Guide to Weight Loss Surgery
Speaker for the True Health Initiative, advocating lifestyle-based disease prevention
Bariatric Expert for What the Health - 2017 Netflix Documentary
Metabolic Expert for Vegan: Everyday Stories - 2016 Documentary
Bariatric Surgeon & Expert for, Diet Fiction - 2019 Documentary
Fun Fact! Dr. Garth Davis is also an accomplished Ironman triathlete and endurance athlete, completing ultra-marathons fueled entirely by a whole-food, plant-based diet. His athletic performance reinforces his clinical philosophy: optimizing nutrition and lifestyle supports both peak performance and long-term health.
His approach to medicine emphasizes prevention, sustainability, and longevity helping patients not only lose weight, but protect their future health.
Dr. Garth Davis, MD, represents a new standard in Houston weight loss care. Through TLC Surgery, he offers a modern, evidence-based approach that integrates bariatric surgery, medical weight loss, nutrition science, and longevity medicine.
For patients seeking sustainable weight loss, improved metabolic health, and a long-term strategy for living well, Dr. Davis provides expertise, experience, and personalized care, built to last.
Explore weight loss surgery options with Dr. Davis, including sleeve gastrectomy, gastric bypass, SADI, and weight loss revision procedures tailored to your health goals.
Discover non-surgical weight loss options with Dr. Davis, including GLP-1 medications like Ozempic®, Wegovy®, and Mounjaro® to help you achieve sustainable results.
Receive expert general surgery care with Dr. Davis for procedures like umbilical, inguinal, or hiatal hernia repair. Each step personalized to restore your health and enhance your life.
Dr. Garth Davis and The Davis Method are affiliates of TLC Surgery