Fortisip Compact Fibre Fortisip Compact Fibre is a high energy (2.4kcal/ml), nutritionally complete, ready to drink, milk shake style nutritional supplement with added fibre (4.5g per bottle), for the management of disease related malnutrition. It is designed to supplement the diet of patients unable to meet their nutritional requirements from other foods.Fortisip Compact Fibre is available in 4 x 125ml plastic bottles, with a flexible straw attached. It comes in 3 delicious flavours: vanilla, strawberry and mocha – simply choose you favourite(s) above! Fortisip Compact Fibre is best served chilled. Shake well before opening. The recommended dose is 2 bottles per day, unless specified by a clinician or dietitian.Fortisip Compact Fibre is Gluten Free.