Nutrient-dense foods are those that provide a high amount of nutrients relative to their calorie content. Such foods include fruits, vegetables, whole grains, lean proteins, and healthy fats. These foods offer essential vitamins, minerals, fiber, and antioxidants while keeping calorie intake in check, promoting overall health and preventing chronic diseases. Incorporating nutrient-dense options into daily meals helps individuals achieve nutritional goals without excessive calorie consumption, supporting weight management and enhancing overall well-being.