This article emphasizes the significance of non-starch carbohydrates and fiber in pig feed, focusing on their effects on gastrointestinal health and function. It discusses the benefits of fermentable fibers like beet pulp and soy hulls for pregnant sows and the use of inert fibers, such as sunflower and oat husks, in piglet feed for intestinal health and toxin binding. The article also touches on the importance of fiber in preventing constipation and improving sow performance, highlighting the need for adequate fiber supply in pig feed and the differences in fiber sourcing and processing among feed producers.