PURPOSE: Knowledge of nutritional support and attitudes of medical staff both affect patient care. We identified attitudes regarding nutritional support among medical staff as well as changes in attitudes when a nutritional support team is present. METHODS: Data were collected from 172 medical staff members who served at a university hospital located in Gyeongju by self-administered questionnaire from June 12~August 30, 2013. The questionnaire inquired about importance of nutritional support, self-confidence about nutritional support, consideration of nutritional support for patient care, consideration of nutritional support when a nutritional support team is present, and nutritional knowledge training during the past year. RESULTS: A total of 169 subjects (98.3%) thought that nutritional support is important for patient care. Only 19 subjects (11.0%) were highly self-confident about nutritional support. In total, 147 subjects (85.5%) considered nutritional support for some or all patients, whereas 169 (98.3%) considered nutritional support for patient care when a nutritional support team is present. Thirty-eight subjects (22.1%) received nutritional knowledge training during the past year. High self-confidence for nutritional support was related to nutritional knowledge training and service part. Positive changes regarding nutritional support when a nutritional support team is present were associated with nutritional knowledge training and high self-confidence for nutritional support. CONCLUSION: No differences in nutritional support attitudes for patient care were observed among the medical staff. Nutritional knowledge training and service part affected self-confidence of nutritional support and induced positive changes in attitudes for nutritional support.