Practice Philosophy

We offer:

  • A non-judgmental space to learn about what your body needs and the support to help you reach your goals

  • Individualized care plans for every client (no one-size-fits-all plans here!)

  • The time to truly listen to you and craft a plan for you that is sustainable

  • A Functional Medicine Approach to Nutrition Care

Rachel is a Board Certified and State Licensed Dietitian-Nutritionist with 10 years of experience. She takes a root-cause approach to supporting you as a whole person, not just addressing symptoms.

Rachel Hershberger, MS, CNS, LDN - Clinical Nutritionist

Rachel Hershberger, MS CNS LDN

Clinical Nutritionist, Practice Owner

Areas of Specialty:

  • Gastrointestinal (GI) Health  

    • SIBO & IMO

    • IBS/IBD

    • Constipation

    • Bloating, Reflux & Indigestion

    • Histamine & Mast Cell

    • Food Intolerances & Sensitivities

  • Women’s Health & Hormones

    • Fertility

    • Irregular Cycles & Hormonal Imbalances

    • Perimenopause & Menopause Support

Fritzy Sanchez, RND - Client Care Coordinator

Fritzy Sanchez, RND

Client Care Coordinator

As the Client Care Coordinator at Philadelphia Functional Nutrition, Fritzy strives to make each client's experience as seamless and supportive as possible. She ensures that clients feel cared for and empowered while providing practitioners with the organization and resources they need to deliver high-quality care. Whether answering questions about services, assisting with the client portal, or helping with scheduling and follow-ups, she is dedicated to making the process smooth and stress-free.

With a background as a Registered Nutritionist-Dietitian (RND) and experience in both clinical practice and nutrition data analysis, Fritzy brings a strong foundation in patient care, research, and administrative support. Her passion lies in helping people feel informed and confident in their health journey. Whether communicating via phone, email, or the client portal, she is committed to ensuring that every client feels heard, valued, and supported every step of the way.