"I would never encourage anybody not to be as careful as they want to be," said Dr. Andy Nish, president of Allergy and Asthma Care Center in Gainesville, Ga. "If there is any question that you don't know what's in something, then it's best not to eat it."
But he feels that allergic travelers who want to eat out should take that opportunity.
"I wouldn't say you have to bring your own food to anywhere … There's a balance between being careless and being so concerned about it that it takes away all their fun," Nish said.
Many allergic travelers manage to strike that balance. Fisher said he has met a number of people in the travel industry with food allergies, including an editor who has many of the same he has. Despite these obstacles, Fisher and other allergy sufferers continue to travel the globe, sample the cuisine, and write about it. Food allergies haven't stopped their travel.
"If I were a purist," Fisher said, "I'd carry my own food wherever I went, I suppose. But I've been traveling this way for 49 years."
ABC News' Lara Salahi contributed to this story.
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