Separate evaluations of bite size (amount of food on the spoon) and food texture were used to prescribe treatment changes in a feeding protocol for a 3-year-old male with autism and severe food selectivity. Each evaluation revealed distinct behavioral topographies, with an increase in disruptive behaviors associated with increased bite sizes and decreased swallowing and higher rates of gagging associated with higher textures. The results of each evaluation were used to successfully guide increases in volume and texture during therapeutic meals. Results highlight the importance of considering both aversion to food as well as oral motor skills when designing treatment for children with food selectivity. Copyright The manipulation of antecedent variables to address pediatric feeding disorders represents a promising treatment avenue that can be used in isolation or in conjunction with consequence-based procedures, such as escape extinction or differential reinforcement of alternative behavior. However, few studies focus specifically on antecedent-based strategies to address feeding problems, although they are common pieces of multi-component treatment packages (Ahearn, 2003). The available evidence suggests that characteristics of food presentation (e.g., volume; type; texture) may influence the acceptance or rejection of food. For example, Munk and Repp (1994) evaluated the impact that variations in type and texture of food had on the feeding behaviors of five children with feeding disorders. The results of the assessment indicated that both food type and texture influenced rates of acceptance and expulsion, with four distinct categories of food rejection emerging for the analysis (i.e., total food refusal; type selectivity; texture selectivity; type and texture selectivity).