Food security refers to the state where all individuals have reliable access to sufficient, safe, and nutritious food to maintain a healthy life. It encompasses various factors, including food production, distribution, and economic stability, ensuring that everyone can meet their dietary needs. Achieving food security is crucial for reducing hunger and malnutrition globally. It involves not only increasing food supply but also improving food systems and addressing issues like poverty and climate change. Organizations like FAO work towards promoting sustainable practices to enhance food security for vulnerable populations.