Survive does not mean thrive. The Irish have also had a long time to adapt to that diet. They're much less carb sensitive than others. Hence the difference be

Survive does not mean thrive. The Irish have also had a long time to adapt to that diet. They're much less carb sensitive than others. Hence the difference between people from cultures who've eaten a traditionally low-carb diet vs those eating a high-carb diet. Native Americans suffer greatly, but those who traditionally farmed (Asians who eat rice for example) are healthy.