The first ever sugar tax has been introduced for a government building after London Mayor Boris Johnson announced a levy for City Hall.
The building, where Boris' affairs are conducted from, has introduced a 10p charge on all added-sugar soft drinks that are sold in its cafe.
All funds will go to the Children's Health Fund in a bid to raise awareness about the amount of sugar Londoners are consuming.
By signing up, the City Hall café joins 130 others places across the UK, including all Jamie Oliver restaurants, Leon, Abokado and Tortilla who have already introduced a levy on added-sugar drinks.
The Uxbridge MP said: “Tackling obesity is one of the biggest health challenges of our generation and I hope this initiative will allow us to raise awareness of the problem and encourage people to think about their diets."
Earlier this month, David Cameron said he had not ruled out a sugar tax to combat Britain's "obesity crisis", with a programme to be released later in the year outlining the measures which will be taken against the issue.
According to Public Health England, the average five-year-old consumes the equivalent of their body weight in sugar every year.
Obesity is currently costing the NHS £5.1 billion per year and is projected to rise to £9.7 billion by 2050, with wider costs to society estimated to reach almost £50 billion per year.
