Which of the following is one reason food items may be recalled?

The discovery of a potential allergen is a critical reason why food items may be recalled. Food recalls are often enacted to protect public health when products are found to contain ingredients that could cause allergic reactions in sensitive individuals. This action is especially important because even trace amounts of an allergen can pose serious health risks to those with allergies. Consequently, the goal of the recall is to prevent consumption of these potentially harmful products, ensuring consumer safety.

In contrast, while increased supply issues, unforeseen price hikes, and improper packaging can impact food distribution and the market, they do not directly endanger consumer health in the same way a potential allergen does. These factors might lead to logistical or economic challenges but do not typically warrant a recall meant to safeguard public health.