Level 1: 1. Understand the dietary needs and preferences of 3-year-old babies. Three-year-old is a critical period for baby\’s growth, and diet is crucial to the baby\’s growth and development. Therefore, parents need to understand the dietary needs and preferences of their 3-year-old babies in order to provide them with appropriate nutrition. At this age, children need to eat enough nutrients such as protein, carbohydrates, fats, vitamins and minerals. At the same time, they also begin to develop their own taste preferences. Some children like sweet foods, while others like salty foods. Therefore, parents can use their children’s