A composition comprising a whole grain with hydrolyzed starch. Although the starch can shift from relatively higher molecular weight moieties to relatively lower molecular weight moieties during hydrolysis, the relative proportions of the principal anatomical components of the caryopses of the grain—the starchy endosperm, germ and bran—remain approximately the same as evinced, for example, by the weight percentages and relative mass ratios of starch, fat, protein, dietary fiber, beta-glucan, and sugar in the composition. Additionally, the whole grain composition can be a powder, for example, a flour, and the whole grain composition can be granulated to a desired size to provide a powder that is highly dispersible in liquid. When gelatinized, hydrated and dispersed in a liquid, the whole grain with hydrolyzed starch can have a lower viscosity, grittiness, and graininess compared to the same variety of whole grain with unhydrolyzed starch.
