The shocking findings were revealed as the Scottish Daily Express launches our Keep It In Mind campaign to call for greater awareness of mental health issues.
The society showed its long-term commitment to raising awareness about mental health problems by signing the Time to Change Employer Pledge in 2017.
The research also shows that just one in 10 workers would feel comfortable speaking about psychosis, self-harm, eating disorders, postnatal depression or schizophrenia.
A quarter had felt "disgusted" and nearly a quarter (24 per cent) had felt "shame" in the previous year, and 16 per cent experienced suicidal thoughts and feelings. Survey data show 10% of women saying they have self-harmed or have deliberately hurt themselves due to their body image, compared to 4% of men.
But large numbers of men are suffering, as are tens of thousands of older people, with more than a quarter (27 per cent) of those 55 and over reporting a negative impact on self-esteem.
"Our survey indicates that millions of adults in the United Kingdom are struggling with concerns about their body image".
Body image issues have been shown to affect adult United Kingdom women more than men.
The charity is calling on the UK Government and industries to take action including regulating social media and giving more powers to the Advertising Standards Authority.
This is a cause for concern and it's clear that active steps need to be taken to support the wellbeing of all staff.
"This could be enforced by the new independent regulator, which is already part of the Government proposals contained in the Online Harms White Paper".
Central England Co-operative is trying to help reduce the stigma around mental health by urging over 8,000 colleagues to find the time to have a brew and lift someone's spirits. This will be the focus of my visit to Girlguiding Scotland, where I'll outline the aims of our new advisory group. One in five of all United Kingdom adults and 46% of 18-24-year-olds said images on social media had caused them to worry about their body image.
The theme chosen this year is 'The Habit of Mental Health, ' and each day has been constructed around three key aspects of maintaining good mental health: (1) physical health, (2) mindfulness practice and mental-health workshops, (3) social events and crafting.
New research from Mental Health First Aid England's Where's Your Head At? manifesto highlights the concerning disparity in physical and mental health at work.