The advert forms the centrepiece of a campaign which aims to encourage the public to manage the amount of salt, fat and sugar in their diet.
The Change4Life adverts, which are made by Aardman, the creators of Wallace and Gromit, have joined forces with a range of food manufacturers and ITV to host the first ever health-focussed ad break during Coronation Street.
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Thousands of people have linked hands on Westminster Bridge in a show of solidarity - one week after the terror attack in the capital.
PC Keith Palmer, 48, stabbed by Khalid Masood while on duty in the grounds of the Palace of Westminster last Wednesday.
Engineering firm CH2M won the £170 million contract but have pulled out of phase two of the project over alleged conflicts of interest.