Katherine Armstrong

About Katherine

Hi, I’m a Registered Dietitian Nutritionist who’s passionate about helping people feel their best through personalized, down-to-earth nutrition support. I specialize in gastrointestinal (GI) conditions like IBS, SIBO, GERD, and Celiac disease, as well as weight concerns, and I love translating complex nutrition science into simple, doable steps. I’ve worked in top hospitals like Thomas Jefferson University and Parkridge Medical Center, and I now see clients virtually through Nourish. Whether you're managing a chronic condition or just trying to feel better in your body, I’m here to guide you with compassion, science-backed advice, and real-life strategies that work.

Approach to care

My goal is to make nutrition feel approachable, not overwhelming. I take the time to really get to know you—your symptoms, lifestyle, food preferences, and health goals—so we can create a plan that fits your life (not the other way around). Everything I recommend is backed by science, but I make it practical—think personalized protocols, simple meal planning tips, and even virtual grocery store tours. I also offer access to high-quality supplements through my Fullscript dispensary at a discounted rate, but only when they’re truly needed. Whether you're dealing with bloating, fatigue, or just feeling stuck, I’m here to be your partner in figuring it all out—with support, not judgment.

Your first session with Katherine

Our first session is all about you. We’ll talk through your health history, current symptoms, medications, lab work (if available), and your goals. I’ll ask about what your typical day looks like, what you enjoy eating, and any roadblocks you’ve hit in the past. By the end of the session, you’ll leave with: - A clear starting point and a plan tailored to your needs - Practical tips you can begin using right away - A roadmap for moving forward, including next steps like follow-ups, lab reviews, or supplement guidance This is a judgment-free space, and you don’t need to have everything “figured out” before we start. You bring your questions—I’ll bring the support.

Location

📍 Philadelphia, Pennsylvania

Education

Drexel University

Hobbies

Cooking and meal prepping, snack enhancement, gardening, Barre3, hiking, kayaking, mountain biking, skiing, river rafting, volunteering, strength training, running and reading

Licenses and Certifications