Nutritional needs refer to the essential nutrients required by the body to function properly. These include macronutrients like carbohydrates, proteins, and fats, which provide energy, as well as micronutrients such as vitamins and minerals that support various bodily functions. A balanced diet helps meet these needs and promotes overall health. Different individuals have varying nutritional requirements based on factors like age, gender, activity level, and health status. For example, children need more calories and nutrients for growth, while athletes may require additional protein for muscle repair. Understanding these needs is crucial for maintaining optimal health.