Cracklin' Oat Bran is a breakfast cereal made by Kellogg's, introduced in 1977.

[1] The cereal is made of oat bran flavored with cinnamon and nutmeg and is held together by brown sugar in a rectangular shape.

The cereal is a source of dietary fiber, as one of the main ingredients is whole oats, but it contains a significant amount of sugar and saturated fat.

The recipe for Cracklin' Oat Bran underwent a major change in 1989, when consumer health advocates pushed for Kellogg's to remove coconut oil, which is 92% saturated fat, from the cereal.

[2] A second recipe alteration occurred in the late 2010s after Kellogg changed the source of its toasted bran ingredient and removed artificial colors and flavors from the product.