Takaaki Nagasawa is a faculty member at the Department of Sports and Nutrition, Wayo Women’s University, and currently a Ph.D. student specializing in sports nutrition. His research interests include dietary assessment, nutritional strategies for weight gain, and fatigue management in collegiate athletes. Although he has not yet published as a first author, he has contributed to several peer-reviewed articles as a co-author. He is actively engaged in applied nutrition research aimed at supporting performance and health in young athletes.