Zhu 2019.

Methods	RCT.
Participants	114 participants with gastrointestinal cancer and at nutritional risk treated with surgery .
Interventions	Dietary guidance from a physician plus ONS versus dietary guidance from a physician alone.
Outcomes	Anthropometry, biochemical status, infections, complications, GI functional status, QoL.
Notes	This study meets the inclusion criteria for comparison 3 (dietary advice plus ONS versus dietary advice alone).

ADL: activities of daily living
APACHE: Acute Physiology and Chroic Health Evaluation
BMI: body mass index
COPD: chronic obstructive pulmonary disease
EN: enteral nutrition
FEV1: forced expiratory volume in one second
FFMI: fat‐free mass index
GI: gastrointestinal
GP: general practitioner
IADL: instrumental activities of daily living
HE: hepatic encephalopathy
LASA: longitudinal Amsterdam aging study questionnaire
MAC: mid‐arm circumference
MAMC: mid‐arm muscle circumference
MNA: mini nutritional assessment
MUST: malnutrition universal screening tool
NUTRIC: nutrition risk in critically ill
ONS: oral nutritional supplement
PG‐SGA: patient‐generated subjective global assessment
PN: parenteral nutrition
QoL: quality of life
RCT: randomised controlled trial
SGA: subjective global assessment
SOFA: sequential organ failure assessment
TSF: triceps skinfold thickness
TUG: timed up and go
VAS: visual analogue scale