Noisy or messy eaters, alongside moaning, were among the top complaints of 1,000 office workers asked to name their biggest workplace irritations.
The survey, commissioned by electronics giant Samsung, suggests distractions caused by colleagues led to workers losing 22 minutes each day on average.
However, workers said issues with technology were their biggest problem.
An overwhelming majority (92%) said crashing computers and slow internet annoyed them and resulted in them losing almost half an hour of working time a day on average.