“French Fries Ingredients: Potatoes, Vegetable Oil (canola Oil, Corn Oil, Soybean Oil, Hydrogenated Soybean Oil, Natural Beef Flavor [wheat And Milk Derivatives]), Dextrose, Sodium Acid Pyrophosphate (maintain Color), Salt. natural Beef Flavor Contains Hydrolyzed Wheat And Hydrolyzed Milk As Starting Ingredients. Contains: Wheat, Milk.”
Source: https://www.mcdonalds.com/us/en-us/product/small-french-frie...