The BBC looks at the benefits of Fairtrade chocolate

It has been 18 months since Cadbury began using only Fairtrade cocoa to make its Dairy Milk bars.

The Fairtrade system means farmers get a premium for their cocoa, and the price they are paid never falls below a living wage.

So, what has this change meant for cocoa farmers in Ghana and what does the future hold after the Kraft takeover of Cadbury?

David Gregory has been finding out.