I am no expert on this, and can't quote it directly, but my OH read the Shaun Ellis book about wolves. To this day it is believed no wolf which has died for any reason has ever have been found to have been eating any form of grain or cereal at post mortem.
I'm wondering how much dog's digestive systems have supposedly evolved to be on par with us? I mean has the incidences of obesity in domestic animals increased with them being given more sugars and carbohydrates? What about other diseases? And would dogs breeding in the wild have long ago bred out the genetic defects that still trouble them today, by the sick and weak not surviving?
Like children they would chose sweet over savory if given the chance, but as adults we have the awareness to choose to eat for our health or not. A dog or cat's healthy eating is down to the owner.
I know dogs are scavengers whose diet has diversified around humans, but even with that diversification, would an adult dog, left to ultimately choose it's own food in the wild, feast mostly on carbs or proteins for energy and longevity?
So, if these charts are correct, then maybe even raw food cannot be bad for an aging dog?
It is true that cooking foods changes the molecular structure of it and is probably as bad for us as it is for our furry friends.
I know very little about raw feeding compared to some, but I find this whole debate truely fascinating.