This experiment was conducted to study the effects of reducing dietary energy (tallow) in diets contain 0.05% emulsifier blend (sodium stearoyl-2-lactylate and Tween-20) on growth performance parameters in growing pigs. Linear and quadratic polynomial contrasts were used to examine responses to supplemental graded levels of energy (3260, 3240, and 3220 kcal kg⁻¹, respectively) in diets. However, no significant difference was observed in all treatment diets. There is an opportunity to reduce feed cost by reducing energy in diets containing emulsifier blend.