Eileen Pierro, MEd, RD, LD

Eileen Pierro is the Owner of Nutrition Therapy, LLC in Portsmouth, NH.

If you or a loved one of any age is experiencing any of the following symptoms, it may be a signal that your body’s not getting the nourishment it needs:

Hair thinning, brittle nails, or dull skin
Mood swings, anxiety, or low mood
Constant thoughts about food or eating
Difficulty concentrating or staying focused
Persistent fatigue or low energy
Loss of menstrual cycle
Feeling compelled to exercise daily, even when tired

These signs can point to under-eating or disordered eating—even if you or loved one appear healthy on the outside.

As a registered dietitian nutritionist with over 20 years of experience in the field, it is Eileen’s passion to support the health of children and adolescents through healthy eating and prevention of disordered relationships with food. With compassionate, evidence-based support, she works with families to:

Restore energy, hormonal balance, and physical health
Rebuild trust in food and body cues
Create sustainable, nourishing meal plans tailored to your child’s needs
Support long-term recovery and resilience

Family-Based Treatment (FBT):

Eileen Pierro is a trained family-based treatment (FBT) dietitian. FBT is the gold standard for treating eating disorders in adolescents. It empowers parents to take an active role in their child’s recovery by:

Providing structured, supportive meals at home
Helping reduce food-related anxiety and rituals
Restoring weight and health before shifting autonomy back to the child
Fostering open communication and emotional safety

FBT consistently shows lower relapse rates and faster symptom reduction compared to individual therapy models. A 2022 meta-analysis found that 40–60% of adolescents treated with FBT achieve full remission within 12 months, while 65–70% of adolescents maintain recovery at 5-year follow-up.

Eileen specializes in disordered eating, eating disorders, and nutrition counseling in children, adolescents and adults, while working closely with your medical team.

“FBT gave us the structure we desperately needed. Once we understood our role, we felt empowered—not helpless.”

-Parent of a 15-year-old in recovery

Trainings, Licenses, and Other Credentials:

Master’s Degree in nutrition education from Framingham State University. Completed clinical internship at Brigham and Women’s Hospital in Boston.
An informed Family Based Treatment provider, educating clients on intuitive eating.
She has worked in a variety of medical settings including community health centers, Children’s Hospital in Boston, Lowell General Hospital in Lawrence, MA and medical private practices including New England Allergy Immunology and Primary Care in North Andover, MA.
Member of the Academy of Nutrition and Dietetics (#720915), EDRD Pro, and the International Federation of Eating Disorders Dietitians.
Licensed in NH (License #1057), MA (License #1920), and Florida (Telehealth only).
Credentialed by Anthem BlueCross/BlueShield of New Hampshire.
Pronouns are she/her/hers

For more information, visit eileenpierro.com.

Eileen offers telehealth appointments via Zoom and in-person appointments in Portsmouth, NH.

Specialties: Disordered Eating and Eating Disorders of Adolescents and young adults, Informed Family Based Treatment for Adolescents with Eating Disorders, cholesterol and high blood pressure management, type 2 DM, Intuitive Eating

Appointments Available Via:

Onsite

Telehealth

Take the Next Step in Your Health Journey

Eileen is ready to help you meet your goals! Click the button below to register for HUSK Nutrition & book an appointment!

Appointments Available Via:

Onsite

Telehealth

Location

Registered Dietitian in Portsmouth, New Hampshire

Address: 230 Lafayette Road, Bld D, Suite 13, Portsmouth, NH

Phone: (888) 964-1975

Fax: (877) 743-5351