Inclusion Criteria:

• Patients from 1 -15 years for children and 15 years and above for adults of requiring 1 or more bolus tube feed alongside their usual tube feed or home-made blended diet as part of their dietary management for disease related malnutrition.
• Patients well-established and stable on current enteral tube feed or home-made blended diet.
• Gastrostomy fed only.
• Willingly given, written, informed consent from patient/caregiver

Exclusion Criteria:

• Inability to comply with the study protocol, in the opinion of the investigator.
• Under 1 years of age
• Patients who have a nasogastric and jejunal feeding tubes
• Patients on total parenteral nutrition
• Known food allergies to any ingredients listed in appendix 1.
• Patients with significant renal or hepatic impairment
• Participation in another interventional study within 2 weeks of this study.
• Patients with known or suspected ileus or mechanical bowel obstruction