Are nutrients dense foods always high in calories?

No, nutrient-dense foods are not always high in calories. Nutrient density refers to the amount of essential nutrients (vitamins, minerals, fiber, etc.) in relation to the number of calories a food contains. For example, vegetables, fruits, and legumes are often low in calories but high in nutrients, while some calorie-dense foods may offer fewer essential nutrients. Thus, nutrient-dense foods can be low in calories while still providing significant health benefits.