Fun-Size Candy, Full-Size Risk: An Allergist’s Halloween Guide for Food Allergy Families

For kids with food allergies, Halloween can bring as much worry as fun. A candy that was safe last year may not be safe this year, and the excitement of the night can make it harder to spot a reaction. Jaspreet Dhami, M.D., an allergist at Latitude Food Allergy Care, shared how families can plan ahead so the holiday stays safe and enjoyable.

Fun-size candy isn’t always the same product

Many parents assume a favorite candy is still safe because it hasn’t caused problems before. Dhami cautioned against that assumption.

“A candy that’s been safe for a child in past years isn’t guaranteed to be safe this year,” Dhami said. “Fun-size candy often isn’t the same product as its full-size counterpart.”

She explained that manufacturers sometimes change ingredients or suppliers for seasonal miniature packaging, and “the smallest wrappers often don’t carry a full ingredient label.”

Saving the treats for home

The dark, costumes and excitement of trick-or-treating can make it hard to notice when something is wrong.

“Costumes, face paint and the general chaos of the night can mask early symptoms, which makes in-the-moment reactions harder to catch than people expect,” Dhami said.

Instead of reading labels on the sidewalk, she suggests packing treats you already know are safe.

“I recommend parents bring some safe treats for trick-or-treating, so their child can still participate in the fun and there isn’t any stress about reading the labels,” she said.

Back at home, good lighting “gives parents an opportunity to check labels and monitor in the event of a reaction.”

Two epinephrine auto-injectors, not one

Dhami recommends that families carry two epinephrine auto-injectors while trick-or-treating.

“A single dose doesn’t always resolve a severe reaction,” she said. “Having a backup on hand can matter in the time it takes to reach emergency care.”

How neighbors can make the night more inclusive

Families without food allergies can help too. Dhami pointed to the Teal Pumpkin Project, a national initiative that encourages households to offer nonfood treats such as stickers or small toys.

“It’s a low-effort way for neighborhoods to make the holiday more inclusive for kids with allergies,” she said. “For a child who may have to hand back half of what they collect, getting something they can keep and enjoy right away makes the night feel like theirs too.”

Talking with friends and neighbors ahead of time also helps.

“Most families without food allergies don’t realize what cross-contamination can mean, but they want to help keep the night safe too,” Dhami said. “Sharing a plan and specific risks beforehand prevents awkward moments.”

Turning leftover candy into something to look forward to

“Leftover candy doesn’t have to be a letdown,” Dhami said.

Many families let a “Switch Witch” trade the candy for toys or allergen-free treats. Others donate unopened candy to groups such as Treats for Troops or the Ronald McDonald House. “That turns it into a chance to give back,” she said.

Food allergy care has changed

Dhami also sees Halloween as a good time for families to look at their child’s allergy testing and treatment.

“For a long time, strict avoidance was the only guidance,” she said. “Now proactive food allergy care begins with updated testing.”

Food allergies can change over time, and “some patients find out through updated testing that they can safely eat foods they’ve been avoiding,” Dhami said.

She also pointed to oral immunotherapy (OIT), which can treat a single food or several foods at once and can start in children as young as 6 months.

“OIT gently retrains the body to tolerate food allergens,” Dhami said.

According to Dhami, 94% of patients at Latitude Food Allergy Care reach maintenance, meaning they are desensitized to their food allergen, and the figure rises to 98% for children younger than 4. Treatment usually takes less than a year, “so a child who starts this season could be eating their allergen safely by next Halloween.”

OIT is done under an allergist’s supervision. Families who are interested should ask their child’s allergist whether updated testing or treatment is a good fit.