The Key to Preventing Food Allergies: Repeat, Don’t Just Introduce Once

Many parents focus on when to start allergenic foods, but the real challenge is what happens after the first taste. One-off exposure may check for reactions but won’t build lasting tolerance. The immune system needs small, regular servings of peanuts, eggs, dairy or other allergens to learn they’re safe. Avoid long gaps or infrequent servings of an introduced allergen. Think of it like language learning: short, repeated lessons work better than a single monthly class. If your baby has severe eczema, a family allergy history or mild reactions at first, proceed more deliberately. Introduce allergens safely, then keep them in the diet regularly to reduce long-term risk.

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