> Could it not be both? Sure! It definitely could be. I'd be interested to see if there has been some documented cultural shift, independent of marketing by fo

> Could it not be both? Sure! It definitely could be. I'd be interested to see if there has been some documented cultural shift, independent of marketing by food giants. One generation seems like a short time frame for that kind of thing though. But for now, the most direct and clear link is between the food available and people's weight.