Energy intake refers to the amount of energy consumed by an individual through food and beverages. It is an important aspect of nutrition as it provides the body with the necessary fuel to carry out daily activities and maintain bodily functions. Monitoring energy intake is essential for maintaining a healthy weight and overall well-being. Researchers in this area study factors that influence energy intake, such as dietary habits, food environments, genetics, and psychological factors. They also investigate how energy intake affects metabolic health, weight management, and chronic disease risk. Understanding energy intake is crucial for developing effective strategies to promote healthy eating habits and prevent diet-related health problems.