External factors that influence food choices include socioeconomic status, cultural norms, and the availability of options. Individuals may select foods based on budget constraints, leading to reliance on cheaper, less nutritious options. Cultural influences shape dietary preferences and practices, affecting what individuals consider acceptable or desirable. Additionally, access to fresh produce or healthy alternatives in local markets can significantly impact food choices. Understanding these external factors is crucial in promoting healthier eating behaviors within different communities and addressing issues related to food security.