Haggis is the national dish of Scotland. It has also been banned in the United States since 1989. Some of its ingredients are illegal for humans to consume in the U.S.
I won’t list what those ingredients are; they’re a bit hard to stomach (that would also be one of the ingredients). But having tried a small amount of haggis while in Scotland, I can testify that it doesn’t taste as bad as it sounds.
Fortunately, the haggis ban may soon be reversed. There has been no evidence of harm from eating offal ingredients. People have been eating haggis for centuries and been just fine. American shores may soon be teeming with the latest Scottish culinary innovations, including haggis nachos and haggis pizza.