High-quality education is essential to produce competent graduates in the field of dietetics. Assessment is a fundamental component of education and driver of learning, yet little is known about methods used to assess dietetics trainees. The objective of this review is to evaluate the practices and outcomes of methods used to assess dietetics trainees. A systematic review of the literature was undertaken. MEDLINE, the Cumulative Index to Nursing and Allied Health Literature Plus, Embase, and the Education Resources Information Center databases were searched from inception until May 31, 2017, using key terms that identified studies reporting practices for the assessment of dietetics trainees.