I’m not following you well. I think of a calorically dense food as one that has a higher kcals/kg of food compared to another diet Caloric density is related to the fat and fiber levels in the diet. How much a cup of food weighs depends on the size, shape and density of the kibble (how puffed it is with air from extrusion). Smaller kibbles fit more compactly into a container, less “wasted” space and so more weight.
For JM the company reports 106 gram/cup, for DH, their dental diet which I’d assume has larger pieces, only 80 grms/cup and for the small bites DH 84 grams/cup.
You don’t need to weigh the food as Purina already reports the weight/cup for you on their site as 106 grams/cup. Where the difference may come in though is the shape of your measuring cup and how you level it. You may come up with a different weight.
