Most of the time when a food product is banned in another country it is the result of local food producers lobbying to keep cheaper imports out. While the public explanation is often "safety" under the guise of "we don't know if this is safe or not, and aren't going to bother to check".

You can't simply ban or tax a competing foodstuff from a country with which you have open trade rules, so you invent a reason.

Advertisements for diet pills and miracle foods and pervasive self links to extremely spurious and/or poorly cited research. I'm not sure if this is pure spam or just disingenuous.