What is the relative calories of a given food product based on weight known as?

The term that describes the relative calories of a given food product based on its weight is known as energy density. Energy density refers to the number of calories a food contains per gram or per unit weight. Foods that are high in energy density contain more calories in a smaller volume, while those low in energy density provide fewer calories for the same amount of food. This concept is important in nutritional analysis and weight management because it helps individuals make informed choices about portion sizes and overall caloric intake, aiding in weight control.

For instance, high-energy-density foods may include items that are rich in fats and sugars, whereas low-energy-density foods typically encompass fruits and vegetables that have high water and fiber content. Understanding energy density can assist in creating balanced diets that promote satiety without excessive caloric intake.