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This is discussion purely about bacteria and your dog. If you are looking for a discussion about dogs spreading bacteria to humans, go here.

Yes, the bacteria in raw meat can hurt your dog IF the dog already has an immunocompromised system or some underlying problem. Raw diets have also been blamed for causing things like pancreatitis and kidney disease, when in reality the underlying disease was already there and was brought to light by the change in diet.

Dogs are surprisingly well-equipped to deal with bacteria. Their short digestive tract is designed to push through food and bacteria quickly without giving bacteria time to colonize. The extremely acidic environment in the gut is also a good bacteria colonization deterrent. People often point to the fact that dogs shed salmonella in their feces (even kibble-fed dogs do this) without showing any ill effects as proof that the dog is infected with salmonella. In reality, all this proves is that the dog has effectively passed the salmonella through its system with no problems. Yes, the dog can act as a salmonella carrier, but the solution is simple--don't eat dog crap and wash your hands after picking up after your dog.

Even kibble-fed dogs regularly shed salmonella and other bacteria. Most of the documented cases of severe bacterial septicemia are from kibble-fed animals or animals suffering from reactions to vaccines. Commercial pet foods have been pulled off shelves more than once because of bacteria AND molds that produce a deadly toxin.

The solution? Use common sense. Clean up well and wash your hands. And think about your dog--this is an animal that can lick itself, lick other dogs, eat a variety of disgusting rotting things, and ingest its own feces or those of other animals with no ill effects. The dog, plain and simple, can handle greater bacterial loads than we can. Can dogs get sick from the bacteria? I suppose they can. But it is rare and usually indicative of an underlying problem, especially when one stops to consider how much bacteria that dog probably comes in contact with every single day.

It is the kibble, not the raw meat, that causes bacterial problems . Kibble in the intestine not only irritates the lining of the bowels but also provides the perfect warm, wet environment with plenty of undigested sugars and starches as food for bacteria. This is why thousands of processed food-fed animals suffer from from a condition called Small Intestinal Bacterial Overgrowth, or SIBO (Lonsdale, T. 2001. Raw Meaty Bones. pg85). Raw meaty bones, however, create a very inhospitable environment for bacteria, as RMBs are easily digestible and have no carbohydrates, starches, or sugars to feed the bacteria.

Can raw-fed dogs make other dogs sick? If the other dog has a suppressed immune system or some underlying problem, then perhaps a raw-fed dog can make another dog sick. But keep in mind the inordinate amount of bacteria dogs usually ingest anyway, not to mention the plaques of bacteria covering the teeth and gums of the kibble-fed dogs. People recall raw-fed dogs being the only dogs at dog shows that didn't get sick with some communicable disease of some sort, and then instantly assume that it was those dogs that got all the other dogs sick. A more plausible explanation is that the raw-fed dogs have a much stronger immune system and are thus better equipped to fight off diseases and "canine common colds" that circulate at shows. For a more in-depth discussion of how processed foods suppress the immune system, please refer to Raw Meaty Bones.

Just some final thoughts on bacteria and raw: this is what finds its way into the "sterile" kibbled commercial foods:

"Meat products not intended for human consumption, such as inedible tissues, condemned portions of carcasses, and entire carcasses of condemned animals (eg, animals found to be dead, dying, disabled, or diseased at the time of slaughter), are also used for dog food. Because of the inherent nature of these products and the less stringent handling requirements, compared with products approved for human consumption, these products may contain high levels of bacterial contamination." (LeJuene, J.T. and D.D. Hancock. 2001. Public health concerns associated with feeding raw meat diets to dogs. Journal of the American Veterinary Medical Association, 219(9): 1222.)
And as for commercial foods being "bacteria free" (an assumption that is often inferred when people put down raw diets because of the bacteria):

"Pet foods, commercial or homemade, provide an ideal environment for bacterial proliferation." (LeJuene, J.T. and D.D. Hancock. 2001. Public health concerns associated with feeding raw meat diets to dogs. Journal of the American Veterinary Medical Association, 219(9): 1224.)

So don't be fooled into thinking kibbled, commercial pet food is a sterile, bacteria-free source of food! The starches, rancid fats, and sugars in kibbled foods provide much better food sources for bacteria than the proteins in raw meat.


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