Jake, the healthy seem to have higher healthcare costs only because they live longer. The figures clearly show lower costs every year the others are alive. Obese cost the most per year until age 56 when they start dying, then smokers take over until they die too and the healthy live on, continuing to rack up costs.

However, I'd be careful about applying these figures to populations outside the Netherlands. Diabetes costing only EU9K over a lifetime for the obese population and way less for the others?! Not in the US where a Consumer Reports Health review says diabetics spent $6K/year on their disease including $2.7K direct medical costs adding up to almost 20% of annual healthcare expenditure. And a claimed lifetime cardiac care cost of EU14K for the obese: sheesh, cardiac care cost $272B in the US last year.