Nutrient-dense foods are characterized by their high levels of essential nutrients relative to their calorie content. Examples include fruits, vegetables, whole grains, nuts, and lean proteins, which offer a rich supply of vitamins, minerals, and antioxidants. Consuming such foods contributes to overall health by providing necessary nutrients without excessive calories, promoting weight management, and reducing the risk of chronic diseases. A diet centered around nutrient-dense choices fosters good health, supports energy levels, and improves bodily functions, making these foods essential to any balanced diet.