Coca-Cola is also set to produce a cholesterol-reducing health drink next year. The company has applied for permission from the British Food Standards Agency to add phytosterol, a natural plant extract, to a range of fruit juices.
Soft drinks giant, Coca-Cola Great Britain is re-branding the "diet" and "lite" versions of some of it youth products.
From next month sugar-free Lilt, Dr Pepper, Sprite and Fanta will be marketed under the umbrella brand of Z, which stands for "zero added sugar". A heavyweight marketing campaign will be launched in May.
The company says the Z brand has been developed in response to consumers' lifestyle choices and to combat misconceptions about the terms "diet" and "lite".
Diet Coke will not be affected by the change.
The agency says it has provisionally approved Coca-Cola's use of the ingredient, but it now has to be scrutinised by the EU.
Assuming the rebranding and new product rollouts are successful, they could be extended on a global basis.
Data sourced from Brand Republic (UK); additional content by WARC staff