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AAP
AAP
Poppy Johnston

Tuna tune-up: calls for clearer green claims on cans

Claims of responsibly-sourced and planet-friendly tuna are not always backed up with evidence. (Xavier La Canna/AAP PHOTOS)

There could be something fishy going on with the green claims slapped on tins of tuna.

Promises of "responsibly-sourced" and "planet-friendly" on cans of the go-to source of cheap protein are not always backed up with evidence.

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