Of course it's bias - but....
Pet Food Ingredients and Myths | Hill's Pet Nutrition FAQs
"By-products are common ingredients found in both human and pet food. In fact Vitamin E, gelatin, beef bouillon, beef liver and vegetable oils are all by-products. In many countries, "by-products" are very desirable human foods.
Chicken by-product meal is a high quality, concentrated source of protein. We use it due to its low ash (phosphorus) content. It is also very palatable. This ingredient consists of ground, rendered, wholesome parts of the chicken. It includes white meat, dark meat, liver and viscera. The chickens are sourced from human grade processing plants.
Meat by-products consist of the non-rendered, clean parts, other than meat from slaughtered mammals. We specifically use beef or pork lungs, spleens, or livers in our products for consistency and optimal nutrient profile."
Assuming what they say is what they do then I am ok with that
And to answer the corn question, Hills suggest this:
"Corn is an excellent ingredient because of the benefits it brings to the product. Corn is a highly nutritious ingredient chosen as a source of protein (for muscle and tissue growth), carbohydrates (for energy), fiber, antioxidants (Beta-carotene, Vitamin E, Lutein) and linoleic acid - an essential fatty acid that promotes healthy skin and a luxurious coat.
Hill's uses grades 1 and 2 corn for our pet foods, which are the grades traditionally used for human food products.
While some individuals are concerned about allergies in pets, corn is NOT a common cause of adverse food reactions in pets. Studies have shown that corn causes no more food allergies than any other grain.
Most grains, including corn, are poorly digested before they are cooked. Once cooked, however, they become highly digestible. Corn is also highly digestible, higher than several other grains such as rice, wheat, barley and sorghum.
Some consumers are concerned that corn may be a filler. Fillers offer no nutritional value whatsoever. Corn, as mentioned above, is a superb source of nutrients.
We choose all of our ingredients for the nutritional value they contribute to each product we make."
Dogs are not obligate carnivores either.
We feed 'domesticated' dogs. Simple as that. They are not in the wild, they are not scavenging food. And we're trying to provide a healthy, happy lifestyle for our closest companions. Which is why I asked - is dog roll ok?
Oh - I keep thinking of silly answers after I've saved the post:
Two new things:
On Hills it says the following:
AAFCO Statement: Animal feeding tests using AAFCO procedures substantiate that Science Diet Puppy Large Breed provides complete and balanced nutrition for growing puppies
Where on other brands (eg, Australian made Pedigree) it says:
Pedigree is formulated to meet the nutritional levels established by the Association of American Feed Control Officials (AAFCO) Dog Food Nutrient Profiles for Growth.
Basically that means that they have to put a minimum amount of x-substance in their food but it does not mean it is absorbed by the body. Where as the feeding tests prove that the nutrients given are in fact absorbed.
Further to the beet controversy - that it's not natural for a dog. Well, just take a look at your own diet for example. Surprisingly much of your fibre (eg bread etc) comes from processed foods. I'd have to say that human diet is far less natural than this puppy diet!!!
While I understand we believe natural is best - and for sure, for long lived animals like humans, we really do need to loo after ourselves. But dogs in captivity generally live for 12 - 18 years, and we need to give them the best they can get in that time.
In the wild, we know that their life expectancy is much less. There is plenty of good reason behind that, including diet!
All the vet has recommended is that we feed our puppy the best we can get for at least the first year of his life. We avoid dog roll at all costs. And we avoid giving foods he doesn't need because this will affect his liver and other internal organs. So on and so on.
I figure a vet has two motives - one, they want a healthy pet and two... They want to sell their product. And fair enough really!
But at least I won't be going to dog hypnotherapy or dog reflexology
I think I will stick to listening to the people who studied these animals in depth since veterinary science first began