Can't you just look at life expectancy, and life expectancy in good health? Because the data I found doesn't put the US in the top anything. Even if you're in the top decile of earners.
Your mistake is separating those items from healthcare, when it's part of it.
Even in the US, many (most?) insurances and healthcare systems have programs to address all those. My HMO certainly does - I can engage with them and craft a healthy nutrition plan, and my doctor can be involved in that as well. Ditto for exercise.
