Coke is addictively fizzy and OJ is a deliciously sweet nectar, especially for kids. How has AquaBall – water with no sugar, artificial colours, flavours or calories – nabbed 2% market share in two short years? What’s in AquaBall’s recipe that makes it such a success?

Busy parents want quick, healthy options to feed their children, but it can be hard to know what's best for them. Ella's Kitchen has eschewed crowd wisdom, building a baby food brand that’s an authority for parents and kids alike.

Just under a quarter of children in London are obese, and with over 8,000 fried chicken shops spread across the capital, junk food is a major contributing factor. Tottenham-based Chicken Town offers up a healthy alternative to the greasy meal, but will school kids be able to stomach it?

In a move to tackle obesity, US schools will have to replace junk food with 'smart snacks' like granola bars and fruit cups in 2014-2015. But can deeply ingrained habits really be changed when a new study shows kids are less likely to choose foods they know are good for them?