A method is described for treating bran to improve sensory attributes in food products made with the treated bran. The method includes acidifying a bran to a pH of less than 5 for a period of time sufficient to achieve an increase in soluble protein, then increasing the pH to at least 5.5. Also described are compositions including a treated bran, and methods of using a treated bran to increase bran content in foods or to improve organoleptic qualities in foods containing bran.