GMB officials said Asda staff in Wisbech had voted "overwhelmingly" for industrial action. A ballot was "sparked" by "cuts to hours and an increase in a bullying management culture", the union said.
The supermarket on Belvedere Road off Horn Hill will become the third Asda to face a strike after workers in Gosport, Hampshire, and Wisbech, Cambridgeshire, walked out in recent weeks.