Britvic is revamping its natural energy drink Purdey’s with a new strapline backed by an outdoor campaign.

In response to the demand for healthy energy drinks, the company is aiming to appeal to consumers by promoting the drink's benefits.

The new strapline will be “multivitamin energy”, instead of “multivitamin fruit drink”.

To support the change, Britvic is running an outdoor campaign, which will run until September in London, Brighton, Manchester and Birmingham.