A positive mental attitude and a set goal are both key to successful weight loss, according to one medical expert.
Visiting teaching fellow at Oxford University Medical School Ursula James explained people can "forget everything else" if they are unable to get their mindset right when trying to shed pounds.
International health insurance customers may have made slimming down a new year's resolution and Ms James, who is also an author, explained a goal that is "concrete and fixed in time" is more likely to be achieved than one that is more "abstract" in nature.
"Take each and every day as a single unit," she advised, adding people should keep a food diary that will help them avoid snacking when they are stressed or bored – two moods that generally result in people eating more.
Dr Cory Holly, founder of the Cory Holly Institute, has advocated against attempting to diet in January, describing the decision to do so as "illogical".