Weetabix workers have voted to strike over a row about pay and conditions. About 80 engineers at sites in Northamptonshire will take part in one-day strikes, which could lead to product shortages, union Unite said. New work patterns would result in cuts in shift allowances, meaning some workers could lose up to £5,000 a year, Unite added. Weetabix said it was "disappointed" by the ballot but "confident" that product shortages could be avoided. Unite said Weetabix had issued the engineers with new contracts and work patterns and there would also be a move to require more day working than shift working, further contributing to the cut in pay. There were also concerns about the health and safety of workers due to the low number of engineers on duty at certain times, the union said. The strikes are still to be scheduled but are due to take place during June, July and August.