Nutrient-dense foods are high in nutrients, such as vitamins and minerals, but low in energy (kilocalories). Nutrient-dense foods provide more nutrients per kilocalories (and in each bite) than less nutrient-dense foods. Fresh fruits and vegetables, for example, are nutrient dense because they are high in B vitamins, vitamin C, minerals such as calcium and magnesium, and fiber, while usually providing fewer than 60 kilocalories per serving.