Dr. Retzler's Longevity Blog

Emerging research shows that a specific gut microbe, Akkermansia muciniphila, plays a powerful role in metabolic health and long-term weight stability. Learn how supporting this microbe may help optimize your weight, blood sugar, and cardiovascular wellness.*

Discover how Cleerly® AI at HormoneSynergy® Clinic is transforming preventive cardiology for patients in Portland, Lake Oswego, Washington, and Oregon. Using advanced AI-powered cardiac imaging, we detect hidden plaque, assess heart disease risk early, and create personalized prevention plans—helping you protect your heart and extend your healthspan with precision medicine.

Liposomal glutathione is often superior to S-Acetyl Glutathione due to its advanced liposomal delivery system, improved bioavailability, and cellular protection—making it the top choice for patients seeking maximum antioxidant and detox support nationwide.

Weight Loss for Longevity™ is Dr. Kathryn Retzler’s comprehensive medical approach to sustainable fat loss and improved healthspan. Combining GLP-1 medications with gut health, hormone optimization, mindful eating, and accountability, this HormoneSynergy® program helps patients lose fat safely, preserve muscle, and live longer, healthier lives—available at our Portland / Lake Oswego clinic.

Nearly two years after Portland’s 2024 ice storm destroyed our home, the rebuilding process revealed powerful parallels between insurance recovery and longevity medicine. Dr. Kathryn Retzler’s HormoneSynergy® approach to preventive, personalized care mirrors the same principles that helped us rebuild — resilience, continuity, and proactive action before crisis.

Your gut health affects everything from immunity to hormone balance. Learn how RetzlerRx® Leaky Gut Support from HormoneSynergy® helps strengthen your intestinal lining, reduce inflammation, and promote longevity — right here in Portland and Lake Oswego.

Creatine isn’t just for athletes — it’s one of the most researched nutrients for maintaining strength, cognition, and cellular energy as we age. HormoneSynergy® and Dr. Kathryn Retzler recommend Creatine Monohydrate as part of a comprehensive Longevity Medicine approach to support muscle mass, brain health, and vitality.

Sarcopenia — the age-related loss of muscle mass and strength — can be slowed and even reversed through targeted nutrition. Metagenics UltraMeal Advanced Protein®, recommended by HormoneSynergy® and Dr. Kathryn Retzler, provides clinically formulated protein and nutrients to support muscle health and longevity for adults nationwide.

Discover why healthspan matters more than lifespan and how HormoneSynergy® Clinic in Portland & Lake Oswego uses longevity medicine, preventive cardiology, and RetzlerRx® supplements to help you live longer, healthier, and stronger. Learn how to optimize energy, vitality, and well-being with evidence-based care and advanced diagnostics.

Build strength for life, not just fitness. Explore how HormoneSynergy® / RetzlerRx® uses Dr. Gabrielle Lyon’s muscle-centric model to enhance muscle protein synthesis, metabolism, detoxification, and hormonal balance for healthy aging and longevity.

Discover the top 10 Metagenics® supplements for hormone balance, immune health, and longevity — available nationwide from HormoneSynergy® / RetzlerRx®. Learn how these science-backed formulas fit into your personalized wellness plan.

Explore the best-selling Xymogen® supplements recommended by HormoneSynergy® / RetzlerRx® to enhance hormone health, metabolism, and longevity—available online across the U.S.