This is why it is better to look at long-term national data rather than selective studies (such as the one noted in the title) which fail to control for obvious

This is why it is better to look at long-term national data rather than selective studies (such as the one noted in the title) which fail to control for obvious discrepancies in their data which would contradict the click-bait headline. The populations that have the longest average lifespans seem to have a few things in common and carbs are one of those common factors.