Daily records of GI tolerance and compliance with the prescribed amount of ONS will be kept for participants throughout the study period. Participants' height and weight will be collected at baseline (weight at end will also be collected), all medications will be documented, and relevant medical and dietary histories will be recorded. A questionnaire at the end of the intervention period will be administered collecting participants' views on the acceptability (taste and palatability) of the test ONS. Taste and palatability will be assessed via a questionnaire that uses a Hedonic scale to quantify preference.