Few industries are more competitive - some would say more cut-throat - than grocery. What we put on our plates is an emotive subject, and for the past two decades the battle for the hearts, minds and, of course, wallets of UK shoppers has raged fiercely. This 'Trolley War' has seen an ever greater proportion of household shopping budgets consolidated by just a few suppliers, as smaller traders have fallen by the wayside or been gobbled up.
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