Last year surprised commentators with the relatively subdued levels of M&A in the food sector. While 2013 did include the largest ever food industry deal by value - the move to take Heinz private - the number of transactions completed came in somewhat below the expectations of M&A advisers. 2014, we are told, is likely to be a different story as deals work their way through the sector's pipelines and valuations continue their upward march. Katy Askew reports.