Fibre can be found in a wide variety of plant-based foods, such as vegetables, fruits, wholegrains and legumes. Dietary fibre (or roughage) is the portion of plant-derived food that cannot be completely broken down by human digestive enzymes and, because of this, it acts as a bulking agent for waste matter, helping food pass through the digestive tract. Lifeplan Dietary Fibre supplements provide three types of fibre: Hemicellulose 42%, Cellulose 28%, Pectin 27% (plus Lignin 3%, which acts like fibre in the digestive system). With added Sugar Beet Fibre. Suitable for Vegans.