Two-thirds of overweight people claim that they're too busy or don't have the willpower to lose their excess weight.
The research found that of 2,011 people surveyed 87 per cent of those carrying extra poundsaid they wanted to lose weight but have 'too many other things to worry about'.
Around 68 per cent of women admitted that they 'lacked willpower', compared to 60 per cent of overweight men.
This is the first time a survey has shown that even when heavier people know excess body weight is linked to cancer, they still feel that 'lack of willpower' is a barrier.
Recent research from Cancer Research UK showed that rates of a number of cancers linked to weight - including kidney and womb cancers - are increasing rapidly. Obesity may be the reason behind this.
The charity’s chief executive, Dr Harpal Kumar, said: “We understand it can be extremely hard for people to maintain a healthy weight but keeping those extra pounds at bay could ultimately save your life.”
After smoking, being overweight or obese is one of the most important avoidable cancer risks. Scientists estimate that, in the UK, the number of people who are overweight and obese could lead to around 19,000 cases of cancer a year.
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