I read the guaranteed analysis on my cat’s kibble for years just to check the protein: the day I subtracted the six numbers from 100, I understood what the bag never printed
Pet food labels tell you protein, fat, fiber, moisture and ash—but deliberately hide one crucial number. By subtracting these five guarantees from 100, you’ll uncover the carbohydrate content that bags never print. For cat owners managing weight or diabetes, this hidden arithmetic matters more than you’d think.