Cipollini Onions Histamine Information

Cipollini onions, a type of onion, do not inherently contain high levels of histamine. This is consistent with studies asserting that fresh vegetables, onion included, generally do not present a significant source of histamine according to a paper by Maintz and Novak. However, these onions can have an effect on histamine levels due to their quercetin content. Quercetin, a type of flavonoid found in a wide variety of fruits and vegetables, has been shown to act as a natural antihistamine. A study published in the Journal of Biological Regulators and Homeostatic Agents found quercetin to inhibit histamine release from mast cells, therefore potentially reducing histamine levels in the body when consumed. Cipollini onions, like other onions, contain a fair amount of quercetin. It's worth noting that the preparation and storage of the onions could potentially affect histamine levels. For example, fermented or pickled onions could possess higher histamine content due to the fermentation process, which is known to increase histamine levels in foods. Similarly, older or improperly stored onions might have higher histamine levels due to bacterial decay. Thus, while fresh Cipollini onions do not contain high histamine levels and could potentially lower it due to their quercetin content, the way they're prepared and stored must be carefully considered to avoid histamine build-up. References: 1. Maintz, L., & Novak, N. (2007) "Histamine and histamine intolerance." American Journal of Clinical Nutrition, 85(5), 1185–1196. 2. Mlcek, J., Jurikova, T., Skrovankova, S., & Sochor, J. (2016) "Quercetin and Its Anti-Allergic Immune Response." Molecules, 21(5), 623. 3. Maurer, M., & Meier, F.E. (2009) "Management of Histamine Intolerance: the tap of histamine release is open from many sides. How far it opens varies individually. It is depicted by the law of the barrel." Zeitschrift Für Gastroenterologie, 47(8), 797-804.