What you eat for lunch can make or break your afternoon

By Sarah Berry
Updated November 16 2014 - 10:13am, first published October 23 2014 - 4:34pm

It's lunchtime and you're tossing up what to eat. You know that a protein-packed salad or a tuna and hummus and veggie wholemeal wrap are smart options, but Subway or a vending machine sandwich with chips and maybe a chocolate bar are fast and easy.

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