Kelsey Costa, MS, RDN
Registered Dietitian Nutritionist
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)
Learn More
LinkedIn
Kelsey Costa, MS, RDN
Organization
Impactful Nutrition Co. (Nutrition Insights LLC)
Office Location
Eastern Time, US
Consulting Services
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Kelsey provides expert insights through science-based nutrition content that builds your authority and audience engagement.
Featured roles:
Healthline, Medical News Today, MyFitnessPal, GoodRx -
Kelsey ensures your content’s medical accuracy and clarity — safeguarding your audience and reputation.
Featured roles:
Healthline, Medical News Today, The Edge -
On behalf of your organization, Kelsey provides attributed expert quotes for publication in popular online media outlets.
Featured roles:
Examine, Diabetes Strong
Past and current clients —
…and more!
