Fybogel Orange high fibre drink is an easy and convenient way to increase the fibre in your diet helping your digestive system work more efficiently and gently relieving constipation the natural way. Fybogel Orange works naturally with your body to treat constipation without undue straining, discomfort or unnatural urgency, so helping to restore and maintain regularity. A lack of fibre in the diet is one of the main causes of bowel irregularity.