The main purpose of the Healthy Lunch for Healthy Kids Act is to improve the nutritional quality of meals served in schools under the National School Lunch Program. The objective is to ensure that children receive healthier food options that contribute to their overall well-being and development. Key provisions of the Act include specific prohibitions on certain types of foods that can be served in school lunches. It aims to ban ultraprocessed foods, which are typically high in unhealthy additives and low in nutritional value.