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On histamine: Histamine causes vasodilation, not vasoconstriction. The amount of histamine blocking agents ingested largely will not counteract the whole effect of histamine, however it may prevent more pronounced side effects that are not appreciated. One of these side effects, by vasodilation and vascular leak is edema. Edema can produce pressure on ...


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"Histamine liberators" are foods that can trigger the release of histamine from the basophils and mast cells, which belong to white blood cells, and are found in the blood and connective tissues. They increase the histamine levels and can therefore worsen symptoms in people with allergies (PubMed, 2018), atopic dermatitis, histamine intolerance, and ...


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