RDA stands for Recommended Dietary Allowance, which is a guideline developed to inform the public about adequate nutrient intake for maintaining health. It specifies the average daily intake levels of key vitamins and minerals necessary for individuals to prevent deficiencies and promote overall well-being. Understanding RDA helps individuals make informed dietary choices and ensures they meet their nutritional needs. It also provides a framework for health professionals when developing dietary recommendations and addressing nutritional needs in various populations.