Frito-Lay has recalled over 6,000 bags of Lay’s Classic Potato Chips due to undeclared milk, which poses a serious risk to individuals with dairy allergies. The FDA upgraded the recall to Class I—the highest risk level—after determining the chips could cause life-threatening allergic reactions,

A December recall on Lay’s Potato Chips sold in two states has been escalated to the FDA’s highest risk level, but no allergic reactions have been reported.

Federal regulators have upgraded a product recall of Lay's Classic Potato Chips to the highest risk level for a batch that may contain undeclared milk ingredients. Last month, Frito-Lay issued a recall warning that more than 6,