The company says the products may contain high levels of Aflatoxin, which is a naturally occurring mold by-product.

PITTSBURGH (CBS LOCAL) — A pet food company is expanding its recall for products that may contain high levels of poisonous mold.

Sunshine Mills Inc. first announced the recall last month.

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The company says the products may contain high levels of Aflatoxin, which is a naturally occurring mold by-product. It can be harmful to pets if consumed in significant quantities.

Dogs affected by the toxin may be slugging and reluctant to eat.

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Vomiting and a yellowish tint to the eyes can also be symptoms.

Champ®, Field Trial®, Good Dog, Hunter’s Special®, Old Glory®, Paws Happy Life®, Pet Expert, Principle, Retriever®, River Bend, Sportsman’s Pride®, Sprout®, Thrifty®, Top Runner® or Whiskers & Tails brands are all a part of the latest recall.

Retailers have been asked to pull the products from their inventory. Customers can return them to the same store for a full refund.

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For more information and a list of the recalled products, visit the FDA’s website here.