Food insecurity refers to the lack of reliable access to sufficient, safe, and nutritious food to maintain a healthy life. It can result from various factors, including economic hardship, unemployment, and limited availability of food in certain areas. People experiencing food insecurity may struggle to afford meals or may rely on low-quality food options. This issue affects individuals and families across different demographics, leading to negative health outcomes such as malnutrition and obesity. Organizations like Feeding America and World Food Programme work to address food insecurity by providing resources and support to those in need.