Dietary fiber, also known as roughage or bulk, includes the parts of plant foods your body can’t digest or absorb. Instead, it passes relatively intact through your stomach, small intestine and colon and out of your body.
Benefits of a high-fiber diet:
Normalizes bowel movements
Improves blood sugar control
Lowers cholesterol levels
Reduces blood pressure and inflammation
Reduces your risk of heart failure
Adds bulk to your diet without adding calories
Studies show that those with the highest intake of fiber have a significantly lower risk of dying of any cause.