When trying to control calories while balancing the diet, some foods can be especially helpful. Foods that are rich in nutrients relative to their energy content.
It is well established that some foods deliver more nutrients than others do for the same amount of calories, as they have a higher nutrient density.Those nutrient dense foods give you the "biggest bang for the buck." You get lots of nutrients, and it doesn't cost you much in terms of calories1.
Let’s take for instance ice-cream and fat-free milk. Both supply calcium, but milk is much more calcium dense than ice-cream. The latter having over 300 calories per cup versus 80 calories for a cup of milk2.