This document discusses balanced diets and recommended daily allowances (RDA) of nutrients. It defines a balanced diet as one containing adequate amounts of all necessary nutrients for health, including carbohydrates, fats, vitamins, minerals, fiber, and water. A balanced diet is important for physical and mental health as no single food provides all nutrients. The document then lists the objectives of a balanced diet and provides examples of foods to include from various food groups like vegetables, fruits, dairy, grains and proteins. It concludes by defining RDA as levels of intake considered adequate to meet the needs of healthy people, as established by government guidelines.