The present paper is aimed at understanding the importance of motivation (perceived qualitatively) in ensuring the success of the dietary change process. This study expands on previous research by confronting the perspective of persons dieting to lose weight with the perspective of professionals providing support (dietitians). We interviewed 13 respondents (six patients, seven dietitians) and performed a thematic analysis. The study’s results show that understanding motivational mechanisms is a prerequisite for a consistent narrative in the patient–dietitian dyad. The research results could help in developing effective dietary interventions that could facilitate effective and permanent dietary change.

本文旨在了解动机（定性感知）在确保饮食改变过程成功方面的重要性。本研究通过将节食减肥者的观点与提供支持的专业人士（营养师）的观点进行对比，对先前的研究进行了扩展。我们采访了 13 名受访者（6 名患者，7 名营养师）并进行了专题分析。该研究的结果表明，了解动机机制是在患者-营养师二人组中进行一致叙述的先决条件。研究结果有助于开发有效的饮食干预措施，从而促进有效和永久的饮食改变。