Spinach is packed with vitamins and minerals and can provide some nutritional benefits to cats.
Risks
Spinach contains calcium oxalate, which can cause urinary stones to form in the urinary tract if eaten in large amounts or if the cat has pre-existing urinary or kidney disease.
Suggestions
Feed spinach to cats only in tiny amounts and not too frequently.
Avoid feeding spinach to cats with urinary or kidney issues.
Note: even if labeled as safe, any food can potentially cause allergies. When introducing a new food, please feed a small amount and observe your cat for any allergic reactions.