Insoluble fiber is a type of dietary fiber that does not dissolve in water. It plays a crucial role in digestive health by adding bulk to the stool and helping food pass more easily through the digestive tract. Common sources of insoluble fiber include whole grains, nuts, and vegetables like carrots and broccoli. Unlike soluble fiber, which can dissolve in water and form a gel-like substance, insoluble fiber remains intact. This characteristic makes it particularly beneficial for preventing constipation and promoting regular bowel movements. Incorporating insoluble fiber into your diet can lead to improved gut health and overall well-being.