Employed adults in Taiwan spend more than one-third of their time in workplaces every day. Studies have shown that 40% of employed adults in Taiwan exceed a healthy body weight. Therefore, each employer has a responsibility and an obligation to implement an employee diet plan to promote health in the workplace. Most workplaces are constrained by a particular working environment; special workloads can make a healthy lifestyle difficult. This paper focuses on the comprehensive health promotion model advocated by the WHO Western Pacific Regional Office; the present text focuses on five particular elements: Policy and Program, Physiological Environment, Social Psychology, Personal Health Resources and Corporate Social Participation. This study suggests that the promotion of a healthy diet program should be achieved by the commitment of executives and that executives should consider employees' different dietary needs to enable employees to self-manage their body weights effectively. The government should encourage the implementation of corporate social responsibility, and should establish a sustainable strategy for healthy eating programs.