Caitlyn Castiglione

About Caitlyn

Hi I’m Caitlyn! I’m a Registered Dietitian Nutritionist passionate about helping people feel their best through personalized, evidence-based nutrition. I earned both my Bachelor’s and Master’s degrees in nutrition from Long Island University, and I love turning complex science into simple, sustainable habits that fit into your everyday life. Struggling with recurrent SIBO myself was what really shifted my perspective on nutriton. It led me to ask more questions, dig into the research, and gain firsthand understanding of how deeply gut health can affect the entire body. Because of that, I work with clients from a place of empathy and curiosity, always focusing on getting to the root cause—not just managing symptoms.

Approach to care

I take a holistic approach to care, looking beyond just the food on your plate while emphasizing personalized, evidence-based changes. I am a firm believer that patients are the true experts on their own bodies, and I intend to create a space where you feel understood and empowered to make healthier choices that fit into your life without additional stress.

Your first session with Caitlyn

Our first session is all about taking the time to really get to know you —your lifestyle, your goals, your preferences, and what’s been working (or not working) for you so far. This is a space where you can share openly, and where we can start to connect the dots together. My goal is to help you move forward with confidence and get back to feeling like yourself.

Education

Master of Science in Nutrition & Dietetics

Hobbies

I love to cook & bake, develop new recipes and read (always a mix of fiction & nutrition science!)

Licenses and Certifications