Final answer:
Psyllium is a dietary fiber that promotes regularity and treats conditions like constipation, IBS, and hemorrhoids.
Step-by-step explanation:
Psyllium is classified as a type of dietary fiber. It is considered a bulking fiber that absorbs water and promotes regularity in the gastrointestinal system. Psyllium is known to aid in the treatment of conditions such as constipation, irritable bowel syndrome (IBS), and hemorrhoids. It can also help lower cholesterol levels. The classification of psyllium is based on its fiber content and physical properties. Psyllium is a form of soluble fiber, known for its viscosity, which means it has the ability to form a thick, gel-like substance in water. Traditionally, fibers were categorized as either soluble or insoluble, but this classification has evolved to describe fibers as either fermentable and/or viscous like psyllium or nonfermentable and/or nonviscous. Psyllium, being viscous, can absorb and retain water, which helps to bulk up fecal matter in the gastrointestinal system. Regarding what it treats, psyllium is primarily used for promoting regularity and relieving constipation. The fermentation of fiber in the large intestine by the microbiota can also produce short-chain fatty acids, which are beneficial for gastrointestinal health. Psyllium's ability to thicken fecal mass and feed beneficial bacteria in the colon reflect its utility in managing digestive issues.