| http://www.w3.org/ns/prov#value | - To alleviate consumer concern, many pet food manufacturers are now using ???natural??? preservatives such as vitamin C, vitamin E and oils of rosemary, clove or other spices to preserve the fats in foods, even though they have a shorter shelf life of about six months.To be labeled organic, pet food must contain at least 95 percent of ingredients certified organic for human consumption.
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