Dietary guidelines are recommendations provided by health authorities to help individuals make informed choices about their diet and nutrition. These guidelines are based on scientific research and help to promote overall health and well-being by providing recommendations on the types and amounts of foods to eat to maintain a healthy diet. They often focus on consuming a variety of nutrient-rich foods, limiting the intake of unhealthy fats, sugars, and salt, and maintaining a balance of calories to support a healthy weight. Dietary guidelines are typically updated periodically to reflect new research and recommendations on nutrition and health.