Pediatric nutrition is focused on meeting the nutritional requirements necessary for children’s growth, cognitive development, and immune health. Essential nutrients include proteins for growth, calcium and vitamin D for bone development, and iron to support cognitive function. Pediatric nutrition research emphasizes the impact of early-life nutrition on long-term health, with studies linking a balanced diet to reduced risks of childhood obesity, improved cognitive outcomes, and lower incidences of allergies. Additionally, researchers are investigating the effects of diet on behavioral conditions like ADHD and the benefits of breastfeeding for immune health. Pediatric nutrition establishes dietary guidelines that promote healthy eating habits in children, providing a foundation for lifelong health and development.