There will be new menu offerings, including the full rollout of its first griddled chicken product, called the Brazer, which will feature a burger, a tortilla-style wrap and a salad containing fewer calories, salt and fat than KFC's standard offerings.
The chain's 800 stores will also switch from using rapeseed, sunflower and palm oil, to just rapeseed, reducing saturated fats across the KFC range by 25 per cent.
The new slogan will appear in ads set to run in two months' time. 'Finger Lickin' Good' has been retired before now, with a nine-year absence before getting restored in 2008.
KFC rolled out griddled chicken in the US in March 2008 and trialled it in the UK in June 2009.
Martin Shuker, managing director of KFC UK and Ireland, said: "We're excited to be launching 'So Good', because it's much more than just a new slogan. It's about becoming better at everything we do, including our great tasting food, the work we do with our people, and the way we operate in the local community."
This article was first published on marketingmagazine.co.uk.