Medium quality ingredient - nutritionally adequate and unlikely to cause any problems
Diatomaceous earth in dog food
Diatomaceous earth (also labelled as diatomite or siliceous earth or by its German name, kieselgur) is a form of soft, highly porous, sedimentary rock made from the fossilised remains of diatoms, a type of hard-shelled algae. In dog food it performs a similar function to charcoal in absorbing toxins in the gut and reducing the incidence of wind. It is also mildly abrasive so it may also help to remove tooth plaque.