Heading – main theme	Subthemes (examples)
Specific content – proposed additions	Clear definition of sustainability
	Social and economic dimensions of sustainability
	Population growth/ control
	Nutrition
	Sustainable/ ethical procurement
	Sustainable healthcare research
	Health service resilience
	Waste management
	Conflicting priorities, e.g. infection control by introducing single use equipment versus preserving and reusing resources
Relevance and scope for application to medical curricula to medical education	Relevance to health and healthcare not always explicit
	Undergraduate versus postgraduate
	Core versus optional
	Stand-alone versus integrated
Feasibility of implementation	Too many learning objectives, too wide-ranging
	Too prescriptive (rather than encouraging critical thinking)
	Too much theory, need to be more relevant to practice
	Need to link to existing curriculum topics
	Need for training and CPD for educators
Format and presentation	Objectives and format should align more closely with the GMC’s ‘Tomorrow’s Doctors’
	Avoid jargon
	Need for multiple documents, some simpler

Int J Med Educ. 2015; 6:191-200; doi: 10.5116/ijme.5643.62cd