I just email Acana few days ago and had a clear answer now. They have great customers service and I turst them that they are a good brand out there. Here is the reply from them so any of you guys are feeding your boys or girls pacifica can have a look for more info of the food.
Monitoring heavy metal levels is a critical control point for us, and part of our HACCP program includes testing for heavy metals. Our fish is tested for all heavy metals including mercury.
Our guidelines for heavy metals are the maximum tolerable limits (MTL) as determined by the National Research Council. The lab results for our heavy metal testing comes back far, far below the Tolerance Levels set by the National Research Council.
We are confident that testing by government agencies and at Champion ensures our foods are safe for cats and dogs and provides peace-of-mind for those of us who love them.
ORIJEN and ACANA ingredients and foods are free from Ethoxyquin, BHA, BHT or any other chemical preservative.
Ethoxyquin is commonly used as a preservative for fish ingredients produced in the USA due to FDA requirements. Those regulations have been modified in recent years to allow the use of mixed tocopherols (a natural preservative) in place of ethoxyquin.
At Champion, we use three kinds of fish ingredients – fresh fish, fish meals and fish oils.
FRESH FISH. Our fresh fish is wild-caught or sustainably farm raised within our region and arrives FRESH – which is defined as ‘never frozen and with no preservatives’. Our fresh fish never contain Ethoxyquin and are preservative-free.
FISH MEALS. Because Ethoxyquin preservatives are commonly used by American fish processors, we work directly with our suppliers (no brokers or middlemen) and we pay a premium to have our fish meals preserved with our proprietary blend of Vitamin E and rosemary extract. Our fish meals are never preserved with Ethoxyquin.
FISH OILS. Produced from wild-caught fish deemed fit for human consumption, our fish oils are preserved with our proprietary blend of Vitamin E and rosemary and are never preserved with Ethoxyquin.
Last edited by Cookie_chihuahua; 04-17-2016 at 11:37 PM.