Sometimes there is a reason they are still "wild",. And not domesticated and sold in stores.Me to.I tried them once.........I had the most painful farts ever!Hi Kevin, I noticed in my supermarket that they now have a sign warning people to do just that. Clearly some people have had problems. Honestly, the ones I roast, I just roast. No problems for me. The ones for the quiche I do boil first, more to make them more tender than anything else. I think it would be smart for people to follow the regulations, but I am not that smart and I do a lot of things the USDA would not approve ofUSDA says that fiddleheads need to be blanched with at least one change of water because even ostrich ferns have allergenic properties sometimes. Roasting them without blanching has sickened people.