Market pressures and a growing interest in sustainability are driving interest in the use of alternative (local) raw materials in swine diets. Alternatives, especially processed raw materials and co-products, tend to be higher in phytate, fibre and indigestible protein, than the parent grain or oil-seed. This reduces feed efficiency. Therefore, the use of enzymes in swine diets containing alternative raw materials can also deliver benefits for sustainability, as losses are minimized and reduced.