A "peer education" system has been implemented at training institutions for national registered dietitians, where fourth-year college students of nutrition science assume the role of instructors, providing nutrition education to first-year students. Consequently, positive impressions among first-year students have been confirmed, such as the ability to envision themselves three years later, or further along their careers, as national registered dietitians. For fourth-year students, this has provided valuable experience in practical nutrition education before entering the workforce, and allowed numerous learning opportunities through insight into the other students' nutrition education methods. For these reasons, we can confirm that nutrition education through "peer education" is an effective education program for students of both years. However, as a significant difference in the scoring between evaluation by others and self-evaluation has been identified, it has been suggested that education should also aim for the improvement of skills that can be objectively evaluated.