Raw Dog Food: Dietary Concerns, Benefits, and Risks
Are raw food diets for dogs an ideal meal plan or a dangerous fad? Experts weigh in.
Raw Dog Food Diet: What the research shows continued...
The evaluation looked at five raw diets, three homemade and two commercially available. All had nutritional deficiencies or excesses that could cause serious health problems when given long term, according to the report.
Joseph Wakshlag, DVM, PhD, has seen those problems appear in some dogs as poor coats, bad skin, or weak bones. Too little fat means a bad coat; but too much fat and not enough protein can cause mild anemia, says Wakshlag, an assistant professor of clinical nutrition at Cornell University College of Veterinary Medicine.
Wakshlag -- who accepts some research funding from Nestle Purina PetCare -- says homemade raw diets also may lack enough calcium and phosphorous, causing bone fractures and dental problems. Depending on the quality of the diet, the calcium or phosphorus may also be difficult to properly digest, even if present in adequate amounts.
Studies of raw pet food also have shown bacterial contamination. The FDA issued suggestions in 2004 for manufacturing raw pet food more safely, citing concern about the possibility of health risks to owners from handling the meat. A 2006 study of 20 commercially available raw meat diets found that 7.1% contained a type of salmonella. E. coli bacteria was found in 59.6% of raw meat diets. These bacteria can also be shed in the feces, leading to a potential source of human exposure and infection.
The study also sampled four canned and dry dog foods. It found E. coli in all of the commercially processed, cooked foods during one of the four sampling periods, and in one brand of dry food during another sampling period.
Raw Dog Food Diet: Concerns Overblown?
Supporters of raw dog food diets are quick to point out that commercially processed pet foods can contain harmful bacteria, as can raw meat offered for human consumption.
“The whole concern about bad bacteria is overblown,” Knueven says. “When people are feeding a raw diet they know it’s not sterile, and they’re more careful about washing their hands. Feeding a raw meat diet is no different than cooking chicken for the family ... you have to clean up the counter and your knife.”