Allergies
Case reports of itchy skin and/or mouth after handling and/or eating eggplant have been reported anecdotally and published in medical journals (see also oral allergy syndrome). A recent (2008) study of a sample of 741 people in India (where eggplant is commonly consumed) found that nearly 10% reported some allergic symptoms after consuming eggplant, while 1.4% showed symptoms in less than 2 hours.[10] Contact dermatitis from eggplant leaves[11] and allergy to eggplant flower pollen[12] have also been reported. Individuals who are atopic (genetically predisposed to hypersensitivity, such as hayfever) are more likely to have a reaction to eggplant, which may be due to the fact that eggplant is high in histamines. A few proteins and at least one secondary metabolite have been identified as potential allergens.[13] Cooking eggplant thoroughly seems to preclude reactions in some individuals, but at least one of the allergenic proteins survives the cooking process.
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