When cats eat potatoes, it may cause some concern for their owners, so it’s important to understand the possible risks of your cat eating this starchy vegetable!
Can Cats Eat Potatoes?
Generally speaking, cats can consume certain types of potatoes in limited quantities, when they are prepared properly. White potatoes, if they are boiled, baked or cooked in any way, can be safe in limited quantities. Sweet potatoes, however, should be avoided, because they contain more difficult-to-digest compounds, despite being richer in nutrients. Raw potatoes of any variety should be avoided, as they can be higher in toxins and even harder for your feline friend to digest. 
Remember that cats are carnivores, so giving them any non-meat human food should only be done occasionally, and in moderate amounts. It is easy to disrupt your cat’s diet by feeding them too much on your plate. Furthermore, be sure that if you give any potatoes to your cats, they are not highly salted, buttered or flavored in any way, particularly with garlic or onions, so avoid giving them French fries! 
Precautions When Cats Eat Potatoes
To ensure that it’s safe when your cats eat potatoes, they must be fully cooked, or your cats could suffer from solanine toxicity, which could be lethal. Mashed potatoes are usually the best option, as they will be the easiest for your cat to digest. Never feed your cat too many potatoes, as they are high in starch and carbohydrates, leading to rapid weight gain.