Turkey is ranked in the top 10 countries that waste food worldwide, which adversely impacts the socio-economic structure, particularly considering the significant increase in food prices. The Wednesday Bazaar in Sakarya is the largest market in the Marmara region of Turkey and a critical location due to its size, regular establishment, and high participation of locals. This study investigates the amount of food waste in Sakarya province and its effect on the economy and consumption. A mixed research method, combining quantitative and qualitative techniques, was used to conduct the study. Questionnaires were distributed to households in three districts to determine demographic characteristics and food waste, while the remaining waste was classified using a waste management system. The study found that bulgur had the highest share in waste, with 13.22% among monthly food products purchased, and the most wasted products in the market were pepper, salad, tomato, and onion. The research is unique in that it is the first to observe popular bazaars frequented by households and provides insights into improving personal practices to reduce food waste, contributing to a healthier environment and financial benefits.