The Frito-Lay voluntary recall on a limited number of Lay's Classic potato chips due to an undeclared allergen has been updated by the FDA to Class 1.

The FDA elevated Lay's Classic Potato Chips to the highest risk level. Here what to know, and whether the recall impacts Ohio.

Lay’s Classic Potato Chips due to “undeclared milk.” The affected chips were sold in Oregon and Washington. On Monday, Jan. 27, the FDA classified the issue as a Class 1 recall, which is defined as “a situation in which there is a reasonable probability that the use of,

The FDA set the highest risk level for the recall of Lay's Classic Potato Chips over concern that the chips contain undeclared milk.The chips were sold in stores and online in Oregon and Washington beginning on Nov.