What does the term "nutrient density" refer to?

Nutrient density refers to the value of the nutrients contained in a food item relative to its calorie content. Foods that are considered nutrient-dense provide a high level of vitamins, minerals, and other essential compounds while contributing fewer calories. This concept is important in nutrition as it helps individuals make healthier food choices that support overall well-being. For example, fruits and vegetables are typically high in nutrient density because they offer abundant nutrients like vitamins, minerals, and fiber with relatively low calories. In contrast, foods that are high in calories but low in essential nutrients, such as sugary snacks or refined products, have low nutrient density and may contribute to poor dietary quality. Understanding nutrient density helps individuals and professionals focus on including foods in their diet that provide maximal nutritional benefit without excess calorie intake.