Herndon 1987.

Methods	Randomised clinical trial, USA
Participants	28 hospitalised adults with burns > 50% of total body surface area, at nutritional risk due to trauma Mean age = 36 years
Interventions	Experimental group: supplementary TPN (n = 13) Control group: No intervention (n = 15) Co‐interventions: peripheral intravenous fluids to meet fluid requirements
Outcomes	Caloric intake, immune function, liver function, serum albumin, mortality
Study dates	Not stated
Notes	We contacted the authors on 19th August 2015 by email: dherndon@utmb.edu. We received no reply.
Risk of bias
Bias	Authors' judgement	Support for judgement
Random sequence generation (selection bias)	Unclear risk	Not described
Allocation concealment (selection bias)	Unclear risk	Not described
Blinding of participants and personnel (performance bias) All outcomes	Unclear risk	Not described
Blinding of outcome assessment (detection bias) All outcomes	Unclear risk	Not described
Incomplete outcome data (attrition bias) All outcomes	Unclear risk	The number of participants with incomplete data was not reported.
Selective reporting (reporting bias)	Unclear risk	No protocol could be obtained, and the trial did not report all‐cause mortality or serious adverse events.
For‐profit bias	Unclear risk	It was unclear how the trial was funded.
Other bias	Low risk	The trial appeared to be free of other components that could put it at risk of bias.