When a cat has diarrhea, it is important to ensure that they stay hydrated by providing them with plenty of clean, fresh water. It is also recommended to feed them a bland, easily digestible diet to give their digestive system a break. Some options for a bland diet include boiled chicken and rice (without added salt or other spices) or chicken or turkey baby food. It is best to eliminate any treats or table scraps and focus only on the core, nutritionally-complete cat food that you offer every day. Fiber supplements such as unflavored psyllium (e.g., Metamucil) and canned pumpkin can also be added to increase fiber intake. However, it is important to consult a veterinarian before treating your cat at home for diarrhea, as home remedies, anti-diarrheal medications, probiotics, and food changes can cause more harm than good if the underlying cause of diarrhea is not understood. If the diarrhea does not resolve within 24-48 hours, it is recommended to contact a veterinarian for testing and proper treatment.