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Medium quality ingredient - nutritionally adequate and unlikely to cause any problems e.g. fillers etc
Calcium Carbonate in dog food
Calcium carbonate is widely used in dog foods as a calcium supplement and less frequently as an acidity regulator, colouring, anti-caking agent or stabiliser. It can be derived from a number of sources including bone meal, oyster shells, limestone, and dolomite (clay). Calcium carbonate can also help to ease symptoms of irritable bowel syndrome (IBS) but excessive calcium can have serious side effects so adding extra to a complete food is generally not recommended.