This Spanish study included 54 children with allergic reactions after exposure to legumes. Legumes were defined as lentils, chickpeas, peas, white beans, and peanuts.
The diagnosis of legume allergy was confirmed by positive skin prick test with legume extracts and food challenges, or a recent convincing history of severe reactions.
The onset of allergic reactions was at 2 years.
Allergy to lentil was the most frequently diagnosed legume allergy (80%), followed by allergy to chickpea (59%).
- lentils and chickpeas are the legumes that cause most allergic reactions
- allergy to more than 1 legume is common
- boiled legume extracts provided the best results
Oral Food Challenges (click to enlarge the diagram).
Clinical features of legume allergy in children from a Mediterranean area. Martínez San Ireneo M, Ibáñez MD, Sánchez JJ, Carnés J, Fernández-Caldas E. Ann Allergy Asthma Immunol. 2008 Aug;101(2):179-84.
Image source: Frozen green peas. Wikipedia, Jina Lee, GNU Free Documentation License.