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#80968

Sweetypye
Member

It is hard to find any food raw or processed that does not contain protein which has been treated with ABs during its life.

The toxicity of menadione (K3) [part of the Vitamin K group] has yet to be quantified as animal studies so far have been inadequate to extrapolate any meaningful data from it to demonstrate the real v imagined risks posed to pet by this hazard; in other words we as yet do not know if the hazard is trivial, moderate, significant, substantial or intolerable.

It also depends on its synergy with the other antioxidants in the diet

Synthetic versions of most vitamins are added to human and pet food grade food as it is cheaper than natural; it does not have the same bioavaiability as natural however its quality level is more easily measured.