A recall of one of America’s favorite snacks has been classified as high risk for people with milk allergies. Here’s everything you need to know.

The Food and Drug Administration has upgraded a December recall of Classic Lays Potato Chips to Class 1, the highest priority designated by the agency.

A previous FDA recall on certain Lay's potato chip products has now been updated to the category with the highest risk for consumers. What to know

The FDA has upgraded a recall of Lay’s Potato Chips to the highest level possible, meaning consuming the chips will cause adverse health consequences. In December, Texas-based food manufacturer Frito Lay recalled a limited number of Lay’s Classic 13oz because the product could contain undeclared milk ingredients.

The FDA has issued a Class I recall for Lay’s Classic Potato Chips due to undeclared milk, warning of severe allergic reactions or death.

The FDA issued a product recall on Lay's Classic Potato Chips in two states. The recall was upgraded to the highest risk factor over undeclared milk.

Class I, according to the FDA, means exposure to or consumption of the product could cause "serious adverse health consequences or death."

Frito-Lay is recalling bags of Lay’s Classic Potato Chips after the FDA increased the risk level of the product to its highest level of risk classification.

The problem ingredient identified was "undeclared milk," which poses a risk to those with severe sensitivities or allergies.

Lay, the recalled chips bags may contain undeclared milk, which can be unsafe for those with an allergy or severe sensitivity to milk.

The FDA first announced on December 18, 2024, that Frito-Lay issued a recall on a “limited number” of the 13 oz bags of chips. These Lay’s Classic Potato Chips bags were recalled because they “may contain undeclared milk ,” which Frito-Lay learned “after being alerted through a consumer contact.”