COLUMBIA, S.C. — A University of San Diego expert on public health is discussing his research on helping kids move more, eat better and fight childhood obesity.

Prof. James Sallis is speaking Thursday at the University of South Carolina’s Arnold School of Public Health.

The 3:45 p.m. talk is free and open to the public. Sallis is a distinguished professor in the Department of Family Medicine and Public Health at San Diego.

His research deals with promoting physical activity and understanding how certain policies affect nutrition and obesity. Sallis’ health improvement programs have been used in health care settings, schools, universities and other organizations.

The lecture is taking place in the Ernest Hollings Special Collections Library at the Thomas Cooper Library on the Columbia campus.