Early Head Start (EHS) and Head Start (HS) staff comprise a large segment of the public sector workforce and experience numerous risk and chronic factors for medical conditions or symptoms. Few health and wellness workplace interventions, however, specifically focus on EHS/HS staff. Methods: A train-the-trainer (TTT) approach was used to build capacity among directors and staff from 57 EHS/HS programs on how to strategically plan and implement a health promoting worksite program focusing on improving nutrition and physical activity practices among EHS/HS staff. Baseline and 3-month post-training questionnaires assessed EHS/HS staff changes on knowledge and practices related to nutrition and physical activity. (author abstract)