With less than 100 days to go before the London Olympics kick off, a number of health campaigners have raised concerns about the possible effect of fast food ads on Londoners as England battles obesity.

Prof Nilli Lavie of University College London’s Institute of Cognitive Neuroscience fears television ads during the Olympics may have a subliminal impact on the viewers, drawing them to unhealthy fast foods that are linked to the current obesity pandemic countrywide.

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