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Chronic Obstructive Pulmonary Disease

COPD: Medical Nutrition Therapy (2019)

The provision of medical nutrition therapy (MNT) is limited to RDNs. Registered dietitian nutritionist (RDN) is a credential granted to nutrition professionals in the United States, who have met all requirements for credentialing through the Commission on Dietetic Registration (CDR), the credentialing agency of the Academy of Nutrition and Dietetics. 

The term “RD/RDN (or international equivalent)” is used on the Evidence Analysis Library (EAL) to allow for studies conducted outside the U.S. to be considered in evaluating the effectiveness of MNT.

To qualify as “international equivalent” for international studies, the country of study’s origin should be a member of International Confederation of Dietetic Associations (ICDA). The credentials for international studies should represent the recognized credentials as stated on ICDA’s website ( for that particular country. In addition, international equivalents include nutrition professionals in countries with reciprocity agreements with the CDR (