Cats are not suitable for eating mustard, but eating a little mustard will not kill you. However, the volatile oils and capsaicin in mustard can irritate the cat's eyes and nose, and may cause discomfort to the cat, such as sneezing, runny nose, watery eyes and other symptoms. In severe cases, cats may develop symptoms such as shortness of breath and throat obstruction. If a cat ingests a large amount of mustard, it may also develop symptoms such as vomiting and diarrhea. In severe cases, it may lead to dehydration and electrolyte imbalance, and it needs to be sent to a pet hospital for treatment urgently.

In short, in their daily diet, we should avoid letting cats eat some foods or spices that are not suitable for humans, such as chili, ginger, garlic, etc., to avoid adverse effects on their health. If you find that your cat has accidentally eaten mustard or other dangerous food, do not handle it yourself. It is best to consult your veterinarian immediately so that prompt measures can be taken.