Cats can eat mashed potatoes, but only in small amounts and under specific conditions. Mashed potatoes should be plain, without added butter, garlic, salt, or spices, as these can be harmful to cats. It is important to ensure the potatoes are cooked properly—typically peeled and roasted or boiled—because raw potatoes and potato skins contain solanine, a toxic substance for cats. Mashed potatoes are not nutritionally necessary for cats and should only be an occasional treat due to their high carbohydrate content, which cats do not digest well and which can contribute to weight gain if fed frequently.

Key Points for Feeding Mashed Potatoes to Cats

• Only offer small spoonfuls of plain mashed potatoes occasionally.
• Potatoes must be peeled and cooked thoroughly (preferably roasted or boiled without seasonings).
• Avoid any mashed potatoes containing butter, garlic, onions, salt, or spices—all of which are harmful to cats.
• Raw potatoes and potato skins should never be fed due to solanine toxicity.
• Mashed potatoes have little nutritional value for cats and should not replace a balanced meat-based diet.
• Avoid feeding mashed potatoes to overweight cats or those with health issues such as diabetes.

If a cat shows any signs of digestive upset after consuming mashed potatoes, such as vomiting or diarrhea, it is best to discontinue and consult a vet.