Background: Eliminating pseudoallergens is an important element of managing chronic spontaneous urticaria (CSU). Salicylic acid (SA) is a primary pseudoallergen in plant-based foodstuffs. Current dietary recommendations are not applicable in East Asia because data on the SA content of many vegetables and fruits commonly consumed in this region are lacking.
Methods: We therefore determined the concentration of free SA in 79 popular vegetables and fruits frequently consumed in Taiwan using gas chromatography-mass spectrometry.
Results: The SA content ranged from 0.09 to 2.3 mg/kg in the fresh vegetables examined, and from 0.01 to 0.48 mg/kg in the fruits.
Conclusions: Data regarding the SA content of East Asian vegetables and fruits could help CSU patients limit their pseudoallergen consumption.
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