A nutrient-dense food is one that provides a high amount of vitamins, minerals, and other beneficial nutrients relative to its calorie content. Examples include fruits, vegetables, whole grains, lean proteins, and healthy fats. Nutrient-dense foods are important because they help individuals meet their nutritional needs without excessive calorie intake, supporting overall health and effective weight management. Incorporating these foods into the diet can enhance energy levels, boost the immune system, and reduce the risk of chronic diseases. Prioritizing nutrient density ensures that individuals receive essential nutrients for optimal body function.