The USDA guidelines refer to recommendations set by the United States Department of Agriculture for healthy eating and nutrition. These guidelines aim to promote overall health, reduce the risk of chronic diseases, and help individuals make informed food choices. They include advice on portion sizes, food groups, and nutrient intake. The guidelines are updated every five years and are based on the latest scientific research. They provide a framework for creating balanced meals, emphasizing the importance of fruits, vegetables, whole grains, and lean proteins. These recommendations are used by health professionals, educators, and policymakers to improve public health.