About Kelsey

Kelsey Costa, MS, RDN, is a registered dietitian nutritionist specializing in integrative and functional nutrition.

With a background in English and advanced research literacy, she has merged her expertise to become a respected voice in nutrition and health communications.

Kelsey provides nutrition consulting services as a writer, reviewer, and expert source for top brands and organizations. She's also the founder of Dietitian Insights, a collaborative and online publication for registered dietitians.

Education & Training

Supervised Practice (Practicum)
Wellness Workdays Dietetic Internship (2021)

Master of Science (MS)
Merrimack College, Health and Wellness Management (2021)
Graduate Fellowship in Health Promotion and Management

Didactic Program in Dietetics (DPD)
Framingham State University (2020)

Bachelor of Science (BS)
Framingham State University, Food and Nutrition (2020)
Boston Children’s Hospital, Research Assistant, FB4 Weight Loss Diet Study

Bachelor of Arts (BA)
Rhode Island College, English (2016)

Credentials

Registered Dietitian Nutritionist (RDN)
Commission on Dietetic Registration (2021)

Licensed Dietitian Nutritionist (LDN)
Connecticut Department of Public Health (2021)

Master Certified Wellness Coach (MCWC)
Catalyst Coaching Institute (2021)

Certified Personal Trainer (CPT)
American Council on Exercise (Expected May 2025)

Certified Pre and Postnatal Exercise Specialist (CPPNES)
International Sports Sciences Association (Expected May 2025)

Current Professional Roles

Owner, Consultant Dietitian at Impactful Nutrition Co., a nutrition communications and consulting company

Founder of Dietitian Insights, an online publication and dietitian collaboration

Memberships

The Academy of Nutrition and Dietetics (AND)

Dietitians in Integrative & Functional Medicine (DIFM) Dietetic Practice Group

The American Association for the Advancement of Science (AAAS)