Cereal brans are rich sources of dietary fiber and phenolic antioxidants. The chief portion of dietary fiber in cereal brans is insoluble arabinoxylans, which are cross-linked via ferulate bridges and poorly fermentable by gut bacteria. Because many functional properties and health benefits of dietary fiber rely on solubility and microbial fermentation, it is desirable to develop strategies to solubilize the arabinoxylans in cereal brans. Autohydrolysis describes the process of subjecting cereal brans to high temperatures (160-220 °C) in the presence of water, releasing a portion of the insoluble arabinoxylans in the form of feruloylated arabinoxylan hydrolysates. These hydrolysates may impart several health benefits that deserve exploration.