Cadbury is putting kale and beetroot in its Milk Tray chocolate box

If you'd prefer that kale stayed in your salad, you might have 'interesting feelings' about Cadbury UK sneaking the zeitgeist green into its iconic Milk Tray chocolate box.

To commemorate the 100th anniversary of the box of assorted chocolates, Cadbury is experimenting with new flavours. Given that kale has been the "it" vegetable of recent times (landing in everything from cocktails to doughnuts), perhaps it shouldn't be surprising that the leafy green is being considered for the mix.

The company has come up with a kale chocolate dome - among other prototypes to lure more diet-conscious shoppers. Dave Shepherd, head of research and development at Milk Tray, told London's Telegraph that introducing a kale chocolate is somewhat of a gamble, but "people are much more health orientated and crispy kale is already being eaten by some as a substitute for crisps".

Cadbury in the UK has also been developing a beetroot jelly barrel and a chocolate boasting a double hit of wasabi (via wasabi peas and cream), which is definitely an interesting way to get kids to eat their greens. Whether they'd skip over these to get straight to a Hazelnut Whirl, Caramel Supreme or other long-time fixtures in the Milk Tray selection is another question.

Shepherd compares the experimental chocolates to haute couture - "The clothes you see on the catwalk never appear as they are on the shelves. Instead you see things inspired by it a little bit down the line," he told the Telegraph - so we're not expecting them to be instantly included in the UK version of the Milk Tray.

When contacted, an Australian representative was unable to confirm whether these flavours could end up in our supermarket shelves. Considering that Cadbury released a Vegemite block this year, we're definitely primed to be open-minded about what should be allowed to go into chocolate.