The sustainability of food waste is one of the most important contemporary economic, social, and environmental issues that encompasses useful academic, practical, and policymaking implications. Under the domain of sustainability, food waste is a serious global challenge with a growing public, political, and corporate concern. Existing literature regarding the sensitization of consumers and the promotion of waste cautious behaviors still has much room for improvement in household waste. To bridge the gap in the literature, this study identifies and examines determinants of young consumers’ food waste reduction behavior in households. Using a sample size of 391 young consumers of household food products from Pakistan, a full-scaled administrative survey is conducted, and our hypotheses are empirically tested by using the PLS structural modeling equation. Our findings reveal significant impacts from both cognitive and emotional aspects on sustainable food waste reduction behavior. Our results have several important implications for policymakers and all the stakeholders, especially for marketers, including advertising strategies, policies to mitigate the impact of food waste, and the development of educational programs related to food waste.