Complex sentence: Under this definition, nutrient-dense food is opposite to energy-dense food (also called "empty calorie" food), fruits and vegetables are nutrient-dense foods, while products containing added sugars, processed cereals, and alcohol are not.
Split into simpler sentences: Under this definition, nutrient-dense food is opposite to energy-dense food (also called "empty calorie" food). Fruits and vegetables are nutrient-dense foods, while products containing added sugars, processed cereals, and alcohol are not.