Skip to content

How Often Should You Keep Offering Allergens at 7–9 Months?

Read the UK edition

The short answer

After your baby tolerates egg, peanut or another allergenic food, keep it in their varied diet in an age-appropriate texture. There is no single weekly amount that fits every baby. If your baby has severe eczema, a diagnosed allergy or a previous reaction, ask their clinician before offering it again.

In this guide · 11 sections

Keep in mind

  • Keep offering well-tolerated allergens regularly rather than removing them for months.
  • There is no single evidence-based weekly portion that applies to every allergenic food and every baby.
  • Avoid whole nuts and thick spoonfuls of peanut butter because of choking hazards.
  • Ask a clinician before offering a food again if a previous reaction is suspected.

After the first taste, what changes?

Your baby tried egg at breakfast one day without any symptoms. Trying something different the next day is fine, but there is no need to forget eggs for months afterward. Introducing a food is the start of making it part of family meals.

The American Academy of Pediatrics advises keeping tolerated allergenic foods in the diet after introduction. Eating a food once without symptoms cannot guarantee that a reaction will never happen later.

Every day or several times a week?

There is no single weekly frequency or portion that applies to every allergenic food and baby. Offer foods your baby tolerates as part of a varied diet, in safe forms, and follow your pediatrician’s advice when allergy risk or prior symptoms are a concern.

For example, your baby might have egg on one day, yogurt another day, and a safely prepared peanut-containing food on another. Your family’s eating habits, your baby’s appetite, and variety across food groups can shape the routine.

Keeping egg, dairy and wheat in the diet

Previously tolerated egg can be served mashed or in small, soft pieces of a fully cooked omelet. How thoroughly it is cooked and its texture matter for safety; there is no reason to serve raw egg.

Plain pasteurized yogurt and suitable cheeses can be included if your baby tolerates dairy. Cow’s milk should not be the main drink before 12 months. Previously introduced wheat can be offered as well-cooked, easily mashed grains or pasta.

Serving peanut and sesame safely

Whole peanuts, other whole nuts, and a sticky spoonful of thick peanut butter can pose a choking hazard at this age. One option is to thin smooth peanut butter your baby already tolerates by mixing it into a familiar puree.

If sesame has already been tolerated, it can be offered in a mixture made with thin tahini. Allergy risk and choking risk are different: tolerating an ingredient does not make every physical form of it safe.

What about fish, soy and other allergens?

Fully cooked fish with every bone removed, or appropriately prepared soy foods, can be included in varied meals when previously tolerated. Choose age-appropriate fish and follow local mercury guidance.

It helps to distinguish a newly introduced allergen from one that your baby has already tolerated. Offering several new allergens for the first time in the same meal can make it difficult to identify a possible trigger.

What if there has been a long break?

Sometimes a food disappears from family meals for several weeks. That alone does not mean your baby is allergic. There is no one-size-fits-all “restart dose” or home-testing schedule after a break.

If your baby has previously had suspicious symptoms after that food, a diagnosed food allergy, or a condition such as severe eczema, discuss reintroduction with a pediatrician or allergy specialist rather than trying it on your own.

Which symptoms matter?

Hives, swelling of the lips or face, repeated vomiting, marked coughing, or wheezing after food may indicate an allergic reaction. Stop offering the suspected food and seek medical assessment.

Trouble breathing, tongue or throat swelling, a change in voice, unusual limpness, fainting, or unresponsiveness is an emergency. Call 911 right away. Mild redness only around the mouth may sometimes be caused by contact, but a photo cannot establish what happened; ask a clinician if unsure.

What can you do today?

Think back over the allergens your baby has eaten comfortably in recent weeks: egg, yogurt, wheat? Rather than removing them just because the first introduction is over, consider how to include them in the family meals you already prepare, in a safe texture.

Keep your baby upright and well supported during meals, with an adult present. Tolerated foods can remain part of a varied diet over time; this need not become a rigid weekly target.

When to seek support

Some signs need emergency help; other concerns can be discussed with your child’s healthcare team.

  • Hives, facial or lip swelling, repeated vomiting, or wheezing after food: stop the food and seek medical assessment.
  • Trouble breathing, tongue or throat swelling, fainting, or unresponsiveness: call 911 immediately.

Sources used for this guide

  1. American Academy of Pediatrics / HealthyChildren.org — When to Introduce Egg, Peanut Butter, and Other Common Food Allergens to Your Baby
  2. CDC — When, What, and How to Introduce Solid Foods
  3. U.S. 911 Program — Calling 911

English editorial review:

The English text and regional guidance have been checked editorially. This is not an individual clinical assessment.

Luluna provides general parenting information. It does not diagnose conditions or replace your child’s healthcare professional.

Explore more guides