Europe's food sector saw its latest piece of consolidation this week with Orkla's bid to buy Nordic rival Rieber & Son. Elsewhere, US food group Hain Celestial continued its UK expansion with its deal to acquire brands from Premier Foods. Tesco grabbed the headlines with its U-turn on nutrition labels and we had a run of retail results from grocers including Ahold, Delhaize and Russia's X5 Retail Group.