Rosh Hashana: Nuts, Yea or Nay?

Don't let this short post distract you from posting comments on my previous post. But can the minhagim experts please let me know just how widespread the no nuts on Rosh Hashana minhag is? Has it taken on great force in recent years because older Jewish Cookbooks don't refrain from Rosh Hashana receipes withe nuts, particularly Honey Cake? My husband can't imagine his mother's honey cake without nuts (she is pure Sephardi)!

I'm cutting the nuts out of the simanim courses because I don't want to leave my guests without food (chas v'shalom). . . . . or send anyone to the hospital (I do seem to recall one guest might be allergic). But I'm not planning to cut them out of the honey cake as there will be other dessert options. Sephardi Cooking is filled with nuts (on Rosh Hashana too) and nuts do add to the flavor and quality of the food.

So Yea or Nay to Nuts and why?