Latest research has proven dogs need a higher protein and fat level than most complete foods provide.It is an old school train of thought that is based on outdated research that dogs thrive on low protein diets,Especially older dogs! It is now understood they they also need higher protein and more digestible protein as they age,not the other way around :rolleyes:
England just seems to be behind when it comes to feeding our pets,and still thinks grains should make up the majority of their diet,although i think money plays a huge part in this also,as they aqre cheaper to manufacture than meat based foods :(
On one of the American nutrition boards i am a member of,which is frequented by actual animal nutritionists,the most popular foods fed have protein levels of between 28% and 42%,with fat levels hovering around 22-24%. Timberwolf is extremely popular,as they seem to be the fore runners in pet food these days.
There is also a newfie breeder/shower,naturopath that would strongly disagree with your opinion newfiedreams.She has 6 newfs at the moment thriving on high protein diets. :)
bedlem,Burns is one of my least favourite foods because of his blanket,narrow/single minded statements that ALL dogs should have LOW protein and fat everything!!

Too many dogs come seem to come down with the same problems when fed Burns,such as dry scurfy coats,weight loss,muscle wastage,just general malnutrition IMO.
Dogs have no real need for carbs,and you wont find a recommended % of what they should have,as it is not an "essential" part of the canine diet.