Some 13 oz. bags of Lay's Classic Potato Chips may contain an undeclared allergen, according to the snack company.

If you have a dairy allergy, the latest recall of Lays chips should be of concern to you. Here's everything you need to know to see if you're affected.

According to an alert from the FDA, the affected snacks could contain undeclared milk allergens. Frito-Lay is recalling Lay’s Classic Potato Chips that “may contain undeclared milk,” posing a risk for individuals with milk allergies or sensitivities,