1. Reasons for micronutrient deficiency
A cat's lack of trace elements could be due to the owner consistently feeding it only one type of cat food. Although cat food manufacturers often state that their cats contain trace elements, the amount is usually quite low. Feeding a cat only this type of food for a long time can lead to a deficiency. Another reason could be that the owner doesn't regularly supplement their cat's diet with trace elements. 
2. Symptoms of micronutrient deficiency
Cats lacking trace elements may develop pica, which means they like to lick things indiscriminately, such as soil, feces, wood, plastic, and tape. Cat owners should pay attention if they notice this in their cats and stop them from doing so, addressing the problem immediately. Some cats lacking trace elements may also show signs like a white nose or hair loss; cat owners should observe their cats closely in these situations.
3. Supplementation of trace elements
If your cat is deficient in trace elements, you should supplement them promptly. You can mix a little mineral supplement into their food. Choose reputable cat food to ensure your cat has a healthy diet. Cats have relatively high requirements for trace elements, so choose palatable cat food. Avoid feeding your cat human trace elements, as this can be harmful.
Cat owners should be careful in their daily lives. If there are small items in the house, especially poisonous or sharp objects, cat owners should keep them out of reach to prevent cats from accidentally ingesting them and causing accidents.
