Several popular Cheerios varieties have quietly disappeared from store shelves, prompting shoppers to wonder if the beloved dry cereal brand is gone for good.

Since the debut of Cheerios in 1941, originally as "Cheerioats" to offer the masses a ready-to-eat oat cereal, dozens of varieties of the classic breakfast brand have hit grocery store shelves. Though some (like Peach Cheerios and Toasted Coconut Cheerios) were intended to just be limited editions,

A General Mills rep said the decision “could be for a variety of reasons, ranging from insufficient consumer demand to ingredients no longer available or other supply chain constraints."