Until recently, the topic of fibre in the nutrition of the pig captured very little interest in the US and other regions feeding diets based primarily on corn and soybean meal. This certainly was not the case in Europe and other parts of the world, where more complex diets employing a wide variety of feed ingredients, many high in fibre, were being fed. The situation in the U.S. changed in 2008 when the price of corn doubled, then tripled and almost quadrupled (Figure 1), and left the pork industry seeking ways to reduce the cost of feeding pigs. Concurrently, co-products of the biofuels sector as well as other crop and food processing industries were adopted with surprising speed. Indeed, by 2011/12, many practical diets in the U.S. had been successfully switched from 75% corn to less than 40%, and in some cases, less than 20%.