To a degree, I can agree that there are likely a group of people more disposed to seeking calorie dense food do to some chemical balance, mental state. That be

To a degree, I can agree that there are likely a group of people more disposed to seeking calorie dense food do to some chemical balance, mental state. That being said, the fact that there is such a large obesity disparity between various countries with equal enough access to food suggest to me that this may not be what is causing the population level obesity issues. Do these countries with lower obesity rates, but equal access to food, just have most of their population going around feeling hungry at all times? Or is the idea that the high obesity countries' populations have a genetic markup different from the low obesity countries'?