What does "roughage" refer to in dietary terms?

Roughage in dietary terms refers to dietary fiber, which is an essential component of a healthy diet. It primarily consists of the indigestible parts of plant foods that pass through the digestive system. Dietary fiber plays a critical role in promoting healthy digestion by aiding in regular bowel movements and preventing constipation. Additionally, it helps maintain a healthy weight, lowers cholesterol levels, and can reduce the risk of developing certain chronic diseases, such as diabetes and heart disease. Understanding the importance of dietary fiber is key to making informed dietary choices that benefit overall health.