Raw food debate.

There is a controversy that circles around dog nutrition. There is an ongoing debate between the diet that is known as the original, or chosen diet, and the current diet that is being adopted by many people.  This includes the food that would have been eaten by choice of the dog if it were released into the wild: meat, meat, and meat.  The amount protein in common and popular dry foods that are in our stores nowadays is hilariously low.  Primarily a bag will be filled with "fillers": corn, wheat, or rice, then later followed on the ingredients list with chicken or chicken by product meal.  All of which are not easily digested by your canine, and in some cases bad for them.

The scientific facts that surround this argument are often skewed towards the audience at hand. Until recently the very idea of feeding your animal raw food would put them at great risk of salmonella poisoning.  However, we know this isn't the case.  Dogs have such a fast digestive tract, with traces of salmonella already inhabiting it, that the movement of raw food from their mouths and out again would not cause an issue.  Any reactions to the food, or signs of 'salmonella' would prove something else being the matter, and should be taken to a vet for further research.

A main issue with the scientific data is that it hasn't really been researched much until recently. People look towards their vets for what food they should feed their animals, and their vets are often unsure of pet nutrition.  They are sponsored by a particular brand, and thus they recommend it.  Without knowing that the first ingredient (corn) is what causes many of the major illnesses in dogs.
There are a few that know better, but in order to move forward with this issue, the studies, controversial as they may seem, should be opened to more people.  Spread awareness to extend and strengthen the lives of our pets.

Sources: http://www.webmd.com/diet/raw-foods-diet
http://www.wysong.net/pet-health-and-nutrition/the-case-against-raw-frozen-pet-foods.php