Table 1.

Process for assigning environmental impact data to FCID commodities.

Stage	Approach for assigning environmental impact data to each specific	Example	% of FCID foods assigned in stage
	FCID food commodity		GHGE	CED
1	Mean of values from literature review	An average of 96 studies on beef for GHGE, 19 studies for CED
2	Aggregated value from a report with previously compiled impact data	Kale, from [23]	47%	35%
3	Proxy assignment from stage 1 or 2 foods in the same group OR from stage 1 or 2 foods of similar form	Average of broccoli, cauliflower and cabbage for Brussels sprouts OR bananas for plantains; escarole for radicchio	39%	50%
4	Mass conversion factor applied to base fruit/vegetable	Strawberry values converted for strawberry juice (mass conversion with processing energy added)	15%	15%