The document discusses the effectiveness of social and behavior change communication (SBCC) in improving nutrition through aquaculture in Bangladesh. It finds that SBCC materials developed by the USAID Aquaculture for Income and Nutrition project, such as posters, food cards, and television commercials, were generally clear and effective in increasing knowledge of aquaculture practices and nutrition among men and women. However, application of knowledge, such as regarding vegetable and fish nutrient values, was still lower among men than women. The study recommends introducing more women-focused nutrition messaging through commonly used and clear media channels, and conducting pre- and post-intervention evaluations to better understand the impact of SBCC tools.