Fiber plays several important roles in the body, mainly related to digestive health and overall metabolism. It is a type of carbohydrate found in plant- based foods that humans cannot fully digest. Instead, fiber passes through the digestive system where it helps in several key ways:
- Fiber adds bulk to stool and helps to keep bowel movements regular, preventing constipation.
- It feeds beneficial gut bacteria, promoting a healthy gut microbiome which is important for digestion and immune function.
- Soluble fiber can help lower blood cholesterol and control blood sugar levels by slowing digestion and absorption.
- Fiber-rich foods tend to be more filling, helping with appetite control and potentially aiding in weight management.
- Regular fiber intake is associated with reduced risks of cardiovascular disease, type 2 diabetes, and some cancers.
There are different types of fiber including soluble fiber, insoluble fiber, prebiotics, and resistant starch, each contributing to health in slightly different ways but all important for maintaining digestive and metabolic health.