Utz Quality Foods has announced a nationwide recall of select potato chip products from its Zapp's and Dirty brands due to concerns about salmonella contamination in an ingredient used in manufacturing.

The recall affects specific varieties of the popular snack brands, though the company has not yet specified which exact products or lot numbers are involved in the recall. Salmonella contamination can cause serious foodborne illness, with symptoms typically including fever, diarrhea, nausea, vomiting and abdominal pain.

The recall was initiated after the company identified that an ingredient used in production may have been contaminated with the bacteria. Utz has not disclosed which specific ingredient is involved or how the contamination was discovered.

Consumers who have purchased affected products are advised not to consume them and to return them to the point of purchase for a full refund. The company is working with federal health authorities to investigate the contamination source and ensure no additional products are at risk.

This recall represents the latest in a series of food safety incidents involving major snack food manufacturers. Salmonella contamination in processed foods can occur at various points in the supply chain, from raw ingredient sourcing to manufacturing facilities.