Since I've had a puppy, I've been trying to decide what kind of food I should feed her. Lefty (my last dog) was pretty happy eating Science Diet, but I never did any proper research about dog food, so I tried to enter into the field with an open mind.
As it turns out, if you do a google search for "dog food comparison", you find mostly product comparisons between "our brand and Brand X"---in other words, I would believe these comparisons as much as I would believe a comparison between Coke and Pepsi on coke.com. If you really look hard for some unbiased information about dog food, you won't find any. Most websites are clearly biased towards ``natural'' or ``organic'' dog foods. There are even several websites that insinuate that feeding a dog kibble, as opposed to raw foods like whole raw chickens, eggs, and organ meat, is tantamount to a violation of human rights.
Now, this seems like a good question to ask some ``experts''. And by experts, of course, I mean dog owners on an internet forum. Let me post some actual quotes...
Poster: vets get little teaching in class on foods. And the majority they get taught is by science diet (and other "high end" dog foods) company, so its a little biased teaching.
BenTheMan: Do you have proof of this, or is it something you've just heard other people saying?
Poster: [Posts link to a 1 year program for assistant vet technicians]. in a 1 year program 15 "lessons" 2 are out of class placements and 2 are repeat type of courses. 1 is animal nutrition. in a semester with 7 different classes in it. it is obviously not a long period of time to learn all about dog food.
BenTheMan: This is NOT a vet program, this is not even a vet technician program. This is a one year program for people who assist vet technicians. You do know the difference between vets and vet technicians, right?
Poster: Also, my dog recently ate a few kernels of boiled corn off the floor while we were cooking and the next day, she pooped them out completely whole and undigested. Which makes me question food with corn in it, if my dog can't digest the corn she 'stole' off the ground, what reasons do I have to think that corn meal can be digested by her?
BenTheMan: Haven't you ever noticed the same in...ahem...your poop? It doesn't automatically mean that corn is bad for you, even if it shows up undigested in your poop.
Poster: Or once I heard somewhere that raw veggies make cancer grow slower so if I had cancer, even if it's completely unproven I would still try to eat raw veggies.
BenTheMan: And if you heard that making hats out of tin foil could prevent the government from reading your thoughts, would you try that, too?
Needless to say, the words ``logical fallacy'' are lost on these people.