A nutrient-dense food is one that provides a high amount of beneficial nutrients relative to its calorie content. These foods are rich in vitamins, minerals, fiber, and essential fatty acids, contributing to overall health without excessive caloric intake. Examples include leafy greens, berries, nuts, seeds, whole grains, and lean proteins. Incorporating nutrient-dense foods into one’s diet supports various body functions, enhances energy levels, and helps manage weight effectively. Choosing these foods over calorie-dense, low-nutrient options is crucial for maintaining optimal health and preventing chronic diseases.