Food allergy advocate sounds alarm on rise of adult diagnoses Food and Allergy Fund founder and CEO Ilana Golant in New York City speaks to Fox News Digital about the rise of allergic reactions in adults and the potential triggers. NEW You can now listen to Fox News articles! More adults are suddenly developing allergic reactions later in life — and experts aren't sure why. Nearly 50% of adults developed at least one food allergy in adulthood, according to a 2019 investigation published in JAMA.