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Yes—food intolerance can trigger hives in some people, though most hives are allergic; culprits include histamine-rich foods, additives, and alcohol.

Yes, food intolerance can raise heart rate through stress hormones, fluid shifts, and gut signals, but rule out allergy or heart disease first.

Yes, food intolerance can trigger heartburn by causing gas and slower emptying that let stomach acid rise into the esophagus.

Yes, food intolerance can trigger headaches or migraines in some people, and a short, careful elimination plan helps confirm and reduce flares.

No, food intolerance alone rarely raises fecal calprotectin; sustained high results point to gut inflammation such as IBD, infection, or NSAID effect.

No, food intolerance doesn’t directly cause gastritis, but it can mimic flares and aggravate symptoms; rule out H. pylori, NSAIDs, and allergy first.

Yes, food intolerance can trigger hair loss in some people, usually via inflammation, gut malabsorption, or restrictive diets that drive shedding.

Yes, food intolerance can cause chills through histamine effects, low blood sugar, or dehydration; sudden breathing trouble points to allergy.

No, food intolerance alone rarely causes blood in stool; bleeding usually signals hemorrhoids, fissures, infection, IBD, or another condition.