Dietary fibre is a frequently neglected nutrient, with eight out of ten UK adults eating less than is needed for good health. Most people think of fibre simply as roughage or bran and know that it helps with constipation and bowel disorders, but fibre is far more than this, with a wide range of health benefits. Evidence indicates that eating a fibre-rich diet will not only improve digestive health, but also aid weight loss, help to reduce cholesterol levels, and reduce the risk of certain cancers (including bowel and breast cancer) and type 2 diabetes. It will also boost intake of vitamins, minerals and antioxidants. This review explores the major role of fibre in health and wellbeing and gives practical tips for dietary advice.