Sorry, should have pasted an excerpt from the link I gave. Here's the main point:
"it's a well known point in healthcare circles that fatty lardbuckets do not cost the health service money. Nor, as a matter of fact, do topers nor smokers.
Sure, all get medical treatment because they've paid their taxes - in the case of the smokers and boozers, a lot more taxes than teetotal nonsmokers, though the fatties get their pies tax-free - and why shouldn't they? And, true, some of that medical treatment will be for things brought on by their gorging, swilling and fuming. But the NHS treats someone for life. And if that life is shorter as a result of personal habits then healthcare needs to be supplied for a lower number of years.
This could go either way of course: perhaps the treatment costs are higher than that saved by not spending in those extra years? But that's not actually how it pans out:
Although effective obesity prevention leads to a decrease in costs of obesity-related diseases, this decrease is offset by cost increases due to diseases unrelated to obesity in life-years gained. Obesity prevention may be an important and cost-effective way of improving public health, but it is not a cure for increasing health expenditures.
The same is even more true of smokers:
Because of differences in life expectancy, however, lifetime health expenditure was highest among healthy-living people and lowest for smokers.
This is something that Professor Doll noted around and about the time that he proved the connection between lung cancer and the cancer sticks. Those cancer sufferers tend to die an early and cheap death meaning many years of not having to give them hip replacements nor care for them in their senile years."
In short, rather than claiming obese people are a drain on society's resources, they are actually far less so than thin/healthy people over time. Society should actually be encouraging people to be fat, smoke and drink so they take up even less resources, whilst paying more in tax revenue back to the country.
See, that's why I dislike health freaks. They're just selfish.