Expatriate health insurance could be needed by middle-aged people who are putting their health at risk by not eating correctly.
According to Dr Colin Waine, former chairman of the National Obesity Forum and visiting professor at the University of Sunderland, people tend to gain weight with age.
"Often the activity levels are slowing down but your eating habits don't change proportionally," he explained.
"You retain the eating habits that you had when you were much more active, in your younger days."
The comments follow news that the over-40s are not doing enough to control their weight.
Professor Klim McPherson from the University of Oxford told the Daily Mail that this age group tends not to keep an eye on their health in this area.
Obesity brings with it a range of health risks, including a higher chance of diabetes, high blood pressure and heart disease.