The cat lacks trace elements. It may be because the cat owner always feeds a single cat food when feeding the cat. After a long time, the cat's body nutrition will not be able to keep up with the lack of trace elements, although the cat owner is feeding the cat. When cats choose cat food, the merchants will explain that the cat food contains trace elements, but the trace elements in cat food are relatively small, so there is no way to meet the trace elements required by the cat's body, so there will be shortages over time. trace elements.
