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Prescription Pet Foods Found To Contain Cancer Causing Toxins

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A few months back, The Truth About Pet Food’s Susan Thixton initiated a consumer funded pet food evaluation. The test results are now in and they might surprise you (although they didn’t surprise us here at DNM).

The Pet Food Test analyzed twelve pet food products (six cat foods and six dog foods). Testing was performed through INTI Services, which shipped the products to laboratories for evaluation.

Why Mycotoxins Are A Threat

Mycotoxins were first discovered in 1962 in England, when a ground peanut meal killed approximately 100,000 turkeys.

Mycotoxins are derived from the Aspergillus species of fungus and can cause a wide array of health issues, especially aflatoxin (which is one of the most potent causes of liver cancer).

Aflatoxins primarily affect the liver and dogs who eat 0.5 to 1 mg aflatoxin/kg body weight can die within days. Smaller amounts of aflatoxins, like those found in most pet food samples, can cause sub-acute symptoms including weight loss, lethargy, jaundice and even death.

Aflatoxins are also carcinogenic. They bind with DNA and cause cell mutations. Newberne and Wogan (1968) were able to produce malignant tumors in rats with less than 1 mg of aflatoxin per kg of feed.

Aflatoxins are very stable and even the high temperature processing involved in kibble manufacturing won’t destroy them, leaving little protection for any dog eating that food.

Harmful Mycotoxins Found In Pet Foods

The Pet Food Test analyzed eight pet foods for 37 different mycotoxins.

Every food tested contained mycotoxins. Here are the results:

  • Four of the foods were low risk
  • Two foods were medium risk
  • Two foods were high risk

This certainly isn’t news to the pet industry …

In 2013, the Consumer Council of Hong Kong published the results of testing performed on nearly 40 popular pet foods.

Testing in the US shows that apart from the recalls from high levels of aflatoxins, nearly every pet food on the market contains aflatoxins or other mold-related mycotoxins. The animal health and nutrition company Alltech analyzed 965 pet food samples and found 98% of them were contaminated with one or more mycotoxins, while 93% contained two or more mycotoxins.

On top of the existing risk, there is further potential for mold spores to contaminate kibble during storage, especially if it is exposed to a moist environment. This can also happen in your home if your kibble is stored in a moist basement or an open container.

Guaranteed Analysis

The American Association of Feed Control Officials (AAFCO) establishes minimum nutritional requirements in pet foods.

The Pet Food Test also analyzed the guaranteed analysis/mineral content of 12 foods. Results found that 3 of the 12 tested foods were over the AAFCO maximum requirement of 2.5% (Hill’s Prescription Diet C/D Urinary Tract Health Canned Dog Food was at a whopping 7.72%).

Two dog foods were also found to contain excessive phosphorus.

Bacteria Found In Pet Foods

The Pet Food Test analyzed 12 pet foods for bacterial contamination. Some of the bacteria found in their testing are antibiotic resistant and listed as serious human health concerns by the Food and Drug Administration (FDA) and Centers for Disease Control (CDC).

Results showed:

  • Nine of the foods contained one or more antibiotic resistant bacteria
  • Nine of the foods contained one or more bacteria linked to human illness and death

Pet food manufacturing clearly needs better policing. Hopefully more of this type of research will prompt AAFCO or the FDA to be more stringent about pet food testing.

But Trevor Smith, a mycotoxin researcher at the University of Guelph, warns “A shift in pet food ingredients is on. Instead of worrying about bacteria spoilage or disease contamination, like we have in the past, we now have to focus on removing mycotoxins.”

Feeding fresh, whole foods remains the best way to protect your pet from cancer and other diseases that processed pet foods can cause.


 

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