Economic Value of Initial Implementation Activities for Proposed Ban on Sales of Over-The-Counter Diet Pills and Muscle-Building Supplements to Minors

•Start-up costs for states implementing prevention policies are typically excluded from cost-effectiveness analyses.•Age-restriction bans on over-the-counter diet pills and muscle-building supplements are being considered.•Such bans prevent eating disorders, illicit anabolic steroid use, and other adverse health outcomes.•Start-up administrative costs of this ban are less than the starting salary of a secretary.