PROBLEM TO BE SOLVED: To provide pet food which contains unsaturated fatty acid contained oil and is provided with high preservation stability and high taste.SOLUTION: The pet food contains following components (A)-(D): (A) oil and fat which contains unsaturated fatty acid and has two or more double bonds as a constituent fatty acid, (B) iron, iron compound and mineral components chosen from copper and copper compounds (C) Citric acid and/or its salt the total amount is not less than 10 times of component (B) in terms of molar ratio and (D) lecithin.