What distinguishes a dietitian from a nutritionist?

With so much information out there and people claiming to be experts, there can be confusion on what nutrition advice is grounded in fact.

Dietitian

Who they are

  • A qualified expert and healthcare professional who promotes good health through proper nutritional habits and education in both healthy and sick people

Education & Credentials

  • A bachelor’s degree in nutrition

  • An accredited dietetic internship with 1,200+ hours of supervised experience

  • Required to pass a national licensing examination

  • Requires 75+ CEUs every 5 years

Legal Status

  • Legally accepted as a nutrition expert as a Registered Dietitian (RD) or Registered Dietitian Nutritionist (RDN)

  • Passed a national exam administered by the Commission on Dietetics Registration (CDR) and maintains active status through the CDR

  • Required to abide by ethics and code of conduct

What does it all mean

  • Training on nutrient timing and possible interactions with drugs

  • Experienced in working in hospitals, clinics, and in private practice

  • Avoids fad diets but will ensure recommendations are customized, safe, and effective based on the latest science

Nutritionist 

Who they are

• Someone who uses food and nutrition science, aiming to prevent disease related to nutritional deficiency or other lifestyle goals

Education & Credentials

• Can range from a passion for nutrition with no formal education to quick online certifications to a high-level degree with relevant training 

• No standard exam required to demonstrate expertise 

• Minimal-to-no continuing education requirements 

Legal Status

• No protected title 

• Any number of credentials are possible that show some sort of course-based training 

What does it all mean

• Recommendations may be anecdotal without substantive scientific backing on safety or effectiveness 

• More likely focused on one or two diets they know well 

• Most only have training related to healthy lifestyle nutrition and possible weight management