That site does control for diet. E.g., my Korean-born wife has always had home-cooked Korean food growing up in North America.
Which is the second argument of OP, regional/fresh/not long distances etc.
That site does control for diet. E.g., my Korean-born wife has always had home-cooked Korean food growing up in North America.
Which is the second argument of OP, regional/fresh/not long distances etc.