A nutrition label has one number most people read — calories — and several that matter just as much for anyone training seriously.
Serving size changes everything else on the label
A label listing 200 calories per serving is meaningless without checking how many servings are actually in the package a member is eating from.
Protein and added sugar deserve a second look
Protein per serving matters directly for training goals, and added sugar (a separate line from total sugar on most labels) reveals more about processing than the calorie count alone ever will.