New research finds UK’s rise in obesity has been primarily caused by a decline in physical activity
The rise in obesity amongst the UK population has been primarily caused by a decline in physical activity. Using government figures, this new study debunks the popular belief that the rise in obesity in recent decades is the result of increased calorie consumption in general, and sugar in particular.In The Fat Lie, Christopher Snowdon studies evidence from DEFRA, the National Diet and Nutrition Survey, the ONS and the British Heart Foundation, finding that all the evidence indicates that per capita consumption of sugar, fat and calories has been falling in the UK for decades.Despite public health campaigners portraying Britain’s obesity ‘epidemic’ as a result of increased availability of junk food, this conventional wisdom has no basis in fact. People have reduced the number of calories they consume, but have reduced the amount they move around even more.
Food supply is a more inviting target for health campaigners than the sedentary lifestyles of the general public. A war on the food industry requires no stigmatisation of individuals and there are a readymade set of policies available which have been tried and tested in the campaigns against tobacco and alcohol.
Although measuring the diet can be difficult because people tend to downplay the amount they eat, the question is not whether people under-report but the extent to which under-reporting has changed over time. It is extremely unlikely people have become so forgetful that the large and virtually uninterrupted fall in calorie consumption reported in successive studies can be explained by misreporting.
The fact that Britons, on average, are eating fewer calories does not mean that everybody is eating less, but we should be sceptical about those who claim that reducing calorie intake across the population will lead to less obesity. That clearly hasn’t happened in the past.
Commenting on the report, its author, Christopher Snowdon, said:“The root cause of Britain’s rising obesity levels has not been a rise in calorie intake but a rise in inactivity. With obesity now featuring so heavily in the media it is worrying that so few people know that our largely sedentary lifestyles, not our appetites, have been the driving force behind the UK’s expanding waistlines.
“Campaigners promoting a healthy lifestyle should refocus their efforts towards encouraging exercise and away from a war on food. Anti-market policies aimed at the whole population such as fat taxes will do nothing for the nation’s health.”