The Food and Drug Administration (FDA) has issued a recall for Simply Nature Spinach Bites, a frozen food product sold at Aldi locations on the east coast. The recall was initially initiated on Jan. 16 but was updated to a higher Class II recall due to concerns about rodent hair contamination. The company that produces the product, Dr. Praeger's Sensible Foods Inc., did not immediately respond to questions about the recall. There are currently acceptable levels of rodent hair and waste for various foods set by the FDA, but only after a product is found to have an unacceptable level, a recall is issued.