Kids that have food allergies can miss out on a lot of the fun associated with trick or treat because a lot of the candies are off-limits to them," Gregory said.
However, there has been an increase in the number of allergy-friendly treats from companies that are recognizing the demand for them, she added. These include Skittles, Starburst, Life Savers, Sour Patch Kids and Swedish Fish.
Online communities that focus on kids and food allergies can be resourceful when it comes to finding lists of allergen-free candies. SnackSafely (PDF) provides a list of Halloween snacks that are free of peanuts, tree nuts and eggs, while Kids With Food Allergies provides a list of the candies free of the eight major allergens.