A clinical psychologist has warned that obesity surgery will not help a person to achieve long-term weight loss unless they also address their attitudes towards food.
Kay Mathewson, who works as an obesity counsellor, said that people who have weight issues have often experienced many years of humiliation and are depressed, anxious and socially withdrawn after numerous failed attempts to lose weight.
She said that obesity surgery should not be viewed as a quick-fix solution and will only be successful if patients manage to make changes to their lifestyle and eating habits.
Ms Mathewson told the Massey News website: "One aspect of my role is looking at what will make the surgery a success and helping clients achieve the best possible outcome.
"We talk about potential obstacles in terms of lifestyle and eating habits, and the role that food and dieting plays in their lives."
Obesity surgery has become increasingly popular in the UK, although availability on the NHS varies and many patients seek private healthcare.