Of course you adjust the food slightly if you think your pup/dag is too thin/heavy. I just do this as I'm serving out the food to my guys. Thinest dog gets biggest bone heaviest one gets smallest. I feed roughly a chicken carcass (with fat and vent skirts on) for breakfast and my special raw meaty bone/meat/offal and viggie mix at night. I add yogurt cider vinegar and a few other things to the nighttime mix.I have Curlies who weigh about 36-42 kg as adults. I still go with the size of their head as the absolute maximum for any meal and as adults it is more half the size for each meal. Thats about 1-1.3 kg a day in total.