Elf bars don't have nicotine, but they do contain some other ingredients that can be harmful if consumed in large quantities. They are made from a special blend of herbs and spices, which can cause nausea, headaches, and other unpleasant side effects. Elf bars are meant to be enjoyed in moderation, and should not be eaten in large amounts or on a daily basis. Elf bars are also not recommended for pregnant or breastfeeding women, as they may contain ingredients that could have adverse effects on the fetus or baby.