The only fibre supplement I can find here is called Fybogel. Are these ingredients ok?
Ispaghula husk 3.5g, in an orange flavoured base. Other ingredients: Aspartame (E951) and saccharin sodium sweeteners, potassium bicarbonate, sodium bicarbonate, polysorbate 80, silica colloidal anhydrous, citric acid and beta-carotene and riboflavine sodium phosphate colouring.