Background
Dr. Christin Grettenberger, DSc, MS, RD, CPT
Doctor of Holistic Nutrition | Registered Dietitian | Certified Personal Trainer
With over 15 years of experience in the field of nutrition and wellness, I bring a unique and comprehensive approach to supporting clients on their health journeys. I hold a Doctorate in Holistic Nutrition and a Master of Science in Nutrition and Dietetics, combining the best of evidence-based medical nutrition therapy with a whole-person, lifestyle-focused perspective.
As a Registered Dietitian and Certified Personal Trainer—and a busy wife and mother myself—I understand the real-life challenges people face when trying to make sustainable health changes. I specialize in working with individuals navigating insulin resistance, weight loss, gestational diabetes, cardiovascular concerns, and sports nutrition, and I’m passionate about helping people feel empowered and capable in their bodies.
Whether you’re looking to build healthier habits, manage a chronic condition, or optimize performance, I provide personalized, flexible strategies and the right tools to help you succeed—for life.
Availability
Approach
"With a strong foundation in both Medical Nutrition Therapy and Holistic Nutrition, I believe that effective nutrition care is never one-size-fits-all. I work with individuals to create personalized, sustainable plans that support their goals while honoring their lifestyle, preferences, and unique health history. At the heart of my practice is a commitment to listening. I prioritize understanding each client’s needs so we can build a realistic and nourishing path forward—together."
Specialties
Modalities
Insurance accepted
Aetna, Cigna, Golden Rule, Kaiser, Optum, Oxford, Select Health, United Healthcare, United Medical Resources (UMR)
Seeing clients in
AZ, CA, CO, HI, MI, NJ, VA
