Hi, some kibble companies will write the Carb % on their website …. you add the protein % the fat% the fiber % the Moisture % & the ash % if the ash % isn’t on the bag or their site just add about 6-8% then take away from 100 & you’ll get a ruff estimate of the carbs….
Earthborn Holistics has the carb % written on the guaranteed analysis, I’m introducing the Natural “Ocean Fusion” it has 12%min fat the least ingredients, no peas, tomato pomace or probiotics… The lower the carbs the better, when dogs eat a raw diet some dogs don’t eat carbs, Patch was eating about 5% carbs when feed a raw diet but that was cause he was a bit under weight, all his yeasty smelly ears paws & skin went away….
http://www.earthbornholisticpetfood.com/us/dog_formulas/
