The survey of 4,505 adults also found that about a third of United Kingdom adults have felt anxious or depressed because of concerns about their body image.
"Our survey has shown that millions of young people in Britain are worrying about their body image".
Mental health minister Clare Haughey said: "From our recently published research, we know that body image is a concern for children and young people".
The Department of Mental Health says taking action and raising awareness of mental health conditions can help break down the stereotypes surrounding mental illness.
When it comes to managers, Mind's research found that many feel they could do with more support.
While remaining in his day job based in Trowse, Darren has trained as a registered Mental Health instructor and is a keen advocate of the company's newly launched "Working Well" programme which will see around 100 "Mental Health First Aiders" trained this year to support its staff.
"We particularly welcome the commitment to addressing the impact of social media on body image".
And Denise Spence, Chief Executive of Girlguiding Scotland said: "This is a great chance for our members to share how negative body image is impacting the mental health of girls and young women in Scotland, and how the new advisory group will work to help improve support for young people".
They also found approximately a quarter of those surveyed have felt "disgust" or "shame" at their body image in the past year.
To mark the start of Mental Health Awareness week, we take a look a closer look at why negative body image is affecting more people from a younger age.
In February this year, the NHS called for a social media ban on "dubious" health products endorsed by social media stars, calling the endorsements "irresponsible and unsafe". It will also develop options for how relevant professionals can support a healthy body image, including in schools, and recommend further actions the government should take.
New data about the impact of body image on young people's mental health will be published by MHF during Mental Health Awareness Week.
"This will build on our package of measures to improve the mental health of young people, and directly target the impact of social media and body image on mental wellbeing".
She added: "Social media continues to present a multitude of dangers for young people which they have been left to navigate on their own devices".
The survey also found large numbers of men can be affected, with a quarter of United Kingdom adult men saying they have felt depressed because of concerns about their body image.
The charity is now lobbying for peer-led mental health programmes to be introduced in schools.
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