Wheat middlings (also known as millfeed, wheat mill run, or wheat midds) are a by-product of the wheat milling industry. The term is somewhat imprecise, as it does not take into account the various mill streams and proportions that are combined and ultimately constitute the by-product’s final composition. As a consequence of this inconsistent terminology, difficulties are encountered when ascertaining nutritional value and establishing economic worth. Wheat midds are sometimes referred to negatively as 'floor sweepings' although such products are generally captured long before they would end up on the floor.