Adverts that make people feel ashamed of their bodies or promotes negative body images will be banned from public transport in London.
London's newly elected Mayor Sadiq Khan announced a move as part of his mayoral election manifesto, reports the Independent.
According to the report, the move will see an end to adverts such as the controversial Protein World campaign - which asked “are you beach body ready?” - in its promotion of protein shakes.
The advert, which appeared in underground stations across London, was accompanied by a model posing in a bikini.
It attracted criticism for allegedly encouraging unrealistic body expectations and for being demeaning to women.
Mr Khan said: “As the father of two teenage girls, I am extremely concerned about this kind of advertising which can demean people, particularly women, and make them ashamed of their bodies. It is high time it came to an end.
“Nobody should feel pressurised, while they travel on the Tube or bus, into unrealistic expectations surrounding their bodies and I want to send a clear message to the advertising industry about this.”
The first Muslim mayor to London also called on Transport for London (TfL), which is responsible for the city’s public transport, to establish an Advertising Steering Group to keep its new policy under review.
TfL's Commercial Development Director Graeme Craig said: “Advertising on our network is unlike TV, online and print media. Our customers cannot simply switch off or turn a page if an advertisement offends or upsets them and we have a duty to ensure the copy we carry reflects that unique environment.
“We want to encourage great advertising that engages people and enhances the transport network.”
TfL's advertising estate is believed to be among the most valuable in the world. The estate is expected to generate more than £1.5bn in revenue over the next eight and a half years.
Every year, a total of 12,000 adverts are placed across TfL services, which includes the Tube, London Overground, DLR, trams and bus shelters, helping the advertisers reach the millions of people who travel daily.
Between April 2014 and March 2015 alone, there were 1.3 billion passenger journeys on the tube, 2.4 billion on London’s buses, and 110 million on the Docklands Light Railway.
Elsewhere, 140 million journeys were made on London overground, 30.9 million by tram and more than 10 million passengers took a London riverboat service boat.