Slugs may carry parasites, bacteria, and other organisms that can cause illness or severe infections in cats. The presence of parasites or other harmful substances can lead to vomiting, diarrhoea, and other digestive problems.
Slugs also produce a slimy mucus that can cause gastrointestinal irritation and inflammation in the cat's digestive system. This can lead to nausea, retching, and vomiting.
If your cat has eaten a slug, it is important to monitor them for signs of illness and contact a veterinarian if they experience any vomiting, diarrhoea, or other symptoms of distress.