Food fiber, also known as roughage or bulk, includes the parts of plant foods your body can't digest or absorb. Unlike other food components, such as fats, proteins, or carbohydrates — which your body breaks down and absorbs — fiber isn't digested by your body. There is strong evidence that eating plenty of fibre (commonly referred to as roughage) is associated with a lower risk of heart disease, stroke, type 2 diabetes, and bowel cancer. Choosing foods with fibre (Polydextrose, Beta glucans, etc.) also makes us feel fuller, while a diet rich in fibre can help digestion and prevent constipation.