Speeches / Should controversial foods be allowed to protect a nation's tradition or culture? [4]

Hi guys. I am new here. I am just wondering if you can help me with this annoying topic.

At my school, Howard(our teacher's name) gave us to debate about the topic: Should controvoversial foods be allowed to protect a nation's tradition or culture?

I understand the topic, but the debate homework requires evidences. I think you guys need to help me .