The behavior of customers and their purchasing decisions are greatly influenced by the food packaging sector. In recent years, the food sector has seen a phenomena known as "shrinkflation," wherein food manufacturers reduce the quantity or volume of products while keeping the same prices. worries regarding this practice's impact on the environment, especially in light of sustainability. This comprehensive investigation looks at the relationship between shrinkflation and sustainability in the food packaging industry. The study begins by examining the underlying factors that contribute to shrinkflation, including cost-cutting measures, changes in consumer preferences, and financial concerns. The study assesses how shrinkflation will affect a brand's reputation over time. The investigation delves into industry norms concerning packaging, sustainability, and regulatory frameworks, emphasizing the advantages and disadvantages that food makers face as a result. The study examines the prevalence of shrinkflation in several food categories and the reasons behind this practice by using a thorough investigation of the body of literature currently in publication, industry reports, and market data. It also examines how shrinkflation affects sustainability, with a particular emphasis on how to lower resource consumption, waste production, and carbon emissions in the food packaging supply chain. The intricate relationships between shrinkflation and sustainability in the food packaging industry are made clearer by this in-depth analysis. The ultimate goal of the paper is to encourage informed decision-making among stakeholders and increase understanding of the ramifications of shrinkflation in order to promote a more ethically and sustainably conscious food business.