The prevalence of “novel” food allergens worldwide: a systematic review

Results Celery: four studies reported on the prevalence of celery allergy in Europe, which ranged between 2.8-11.1% based on sensitisation, and 5.5% for self-reported celery allergy. In terms of the rest of the world, only one study in Taiwan reported sensitisation rates of 1.8%. Lupin: no population-based studies examined the prevalence of lupin allergy worldwide. Mustard: only one study (conducted in France, Europe) examined mustard allergy finding self-reported prevalence of 3%. Sesame: eight studies reported on the prevalence of sesame allergy in Europe, reporting a prevalence range of 0-1.5% for self-reported sesame allergy, 0-2.2% for sensitisation rates and 0.1-0.6% for challenge-proven allergy. There were four studies carried out in other regions of the world, with prevalence ranging from 0-0.2% self-reported, 0.2-1.6% sensitisation and 0.7% challenge-proven sesame allergy.