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Anaphylaxis to a food that someone has previously consumed without issues can develop due to changes in the immune system. This can occur when the immune system, upon repeated exposure, mistakenly identifies a protein in the food as a threat and produces specific antibodies, leading to an allergic reaction. Factors such as genetic predisposition, changes in gut microbiome, or environmental influences may also play a role in the sudden onset of food Allergies. Additionally, cross-reactivity with other allergens can trigger anaphylaxis in susceptible individuals.

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2w ago

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