News today that Natural Balance has recalled two dry pet food formulas, because consumer complaints had begun to come in of dogs vomiting and suffering kidney problems. Later in the day the company issues a press release stating that melamine has been found in samples of the food.
Menu Foods recalled products all contained contaminated wheat gluten from China; in the Natural Balance case, the contaminated ingredient is believed to be rice protein concentrate sourced from a North American supplier. Natural Balance is not naming the supplier.
Did the Chinese wheat gluten flow through the same supplier as the rice protein at any point? Does this point more and more to deliberate tampering, as Steve Janke has suggested? How else can different ingredients with different sources end up containing the same toxin(s)?