More than 1.5 million bags of shredded cheese sold in 31 states and Puerto Rico have been recalled.

The FDA says they have recalled the bags because they may include metal fragments.

They were sold at major retailers, including Walmart, Aldi, and Target and originated at a facility in Ohio. This is an update of an earlier recall issued in October.

Here is the full list of cheeses being recalled:

Shredded mozzarella cheese

Always Save Shredded Low-Moisture Part-Skim Mozzarella Cheese

Borden Shredded Low-Moisture Part-Skim Mozzarella Cheese

Borden Thick Cut Shredded Low-Moisture Part-Skim Mozzarella Cheese

Brookshire’s Finely Shredded Low-Moisture Part-Skim Mozzarella Cheese

Brookshire’s Shredded Low-Moisture Part-Skim Mozzarella Cheese

Brookshire’s Thick Cut Low-Moisture Part-Ski

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