During Pride 2014 in San Francisco, customers eating at a Burger King were served up a special rainbow-wrapped ‘Proud Whopper’. Customers expected it to be diferent from the original Whopper, but once unwrapped, the message “We are all the same inside” was revealed.

With McDonald's challenged by fast food chains like Chipotle and Subway – which emphasise fresher ingredients and let people choose what goes into their products – the burger chain is expanding the "create your own taste" option. But can it boost sliding sales?

News that McDonald’s profits fell 21% in Q4 2015 highlighted how the brand had lost touch with consumers. Trials in Australia and the Netherlands aim to make the brand relevant again, but can customisable menus and more comfortable restaurants bring people back through the golden arches?

While many American fast food chains have set up shop in India, reinventing themselves in the process in order to appeal to local tastes, Domino’s stands out as a brand that’s gone one step further. Carefully balancing local tastes with the Western flavour that people associate with pizza, Domino’s has engineered a 72% slice of the market.