What role does nutrition play in maintaining a healthy lifestyle?

The correct choice highlights the critical role of nutrition in providing essential nutrients necessary for energy, growth, and overall well-being. Proper nutrition is foundational for supporting bodily functions, maintaining a healthy weight, and preventing chronic diseases. Nutrients such as vitamins, minerals, proteins, carbohydrates, and healthy fats all contribute to the body's ability to perform daily activities, recover from illness, and sustain energy levels throughout the day.

A balanced diet fosters physical and mental health, supports the immune system, and plays a vital role in children's growth and development. This understanding underscores why nutrition is fundamental alongside other aspects of a healthy lifestyle, such as physical activity and sufficient rest.