FATHOUN Naceur Edine, SASSI Oussema2025-12-022025-12-022025-06-03http//localhost:8080/jspui/handle/123456789/13642Social media has become a pervasive influence on young adults’ dietary habits worldwide. This study investigates how social media affects food choices among Algerian university students, considering cultural and economic factors. Using a cross-sectional survey, 261 students reported on their social media use, trust in nutritional information, physical activity, and eating behaviors. Participants completed a structured questionnaire assessing daily social media engagement, trust levels, and dietary habits. Data were analyzed using chi-square tests to identify associations between demographic variables and food-related behaviors. Comparative analysis was conducted with a 2023 Pakistani study exploring similar themes. Results show that 93.8% of students use social media daily, predominantly Instagram, and 76.8% trust online nutritional information. Frequent experimentation with new foods was reported by 53.3%, though 54.1% perceive social media as promoting unhealthy eating. Physical activity and income correlated with healthier habits, while younger students and females exhibited greater social media use and trust. Following food trends was linked to increased consumption of unhealthy foods. Comparisons with the Pakistani study reveal consistent patterns across different cultural contexts. These findings underscore social media’s complex role in shaping dietary choices and highlight the need for culturally tailored interventions to improve digital literacy and promote healthier eating behaviors.enSocial media, food habits, university students, eating behavior, digital influence, nutrition, cultural factors, Algeria, physical activity, dietary choiceThesis