Dr. Tabatha BarberI teach women how to fast their way to a faith-filled, hormonally balanced, fabulous life!

Why You Might NOT Know You Have Food Sensitivities | How They're Different from Food Allergies

8 Dec 2023 · 1 min

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A short YouTube explainer (by Dr. Tabatha Barber) distinguishing food allergies from food sensitivities. The clip emphasizes that allergies are immediate IgE-mediated reactions, while sensitivities are IgG-mediated and often produce delayed symptoms 24–72 hours later — which can obscure connections (e.g., migraines) between eating and later symptoms.

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The crazy thing about food sensitivities is you don't have a reaction right away because it's a different branch of the immune system. Allergies are an IgE response, whereas sensitivities are an IgG response. And so those typically show up 24, 48, or 72 hours later. So some people will get a migraine, and they never put the pieces of the puzzle together that it was something they ate two or three days prior, because by the time you have the symptom, you don't even remember what you ate, usually.