Feeding Baby: How to Avoid Food Allergies

Starting to feed a baby solid foods is an exciting milestone for parents. However, it comes with a lot of questions and concerns, especially about food allergies. What foods are most likely to cause allergies in babies? How do you avoid them?


Start Gradually to Identify Any Food Allergies

It’s most important to introduce a baby to new foods gradually, one at a time, in case of food allergies. If not, a parent may have trouble tying an allergy to a specific new food. For example, if you give your baby three new foods over the course of a day and she develops an allergic reaction, you won’t know which of the foods provoked it.

The type of food or the order in which food is introduced is not much of a concern, as long as the foods you are offering are healthy and well-balanced for the baby. Each time you offer a new food, you should wait three to five days before adding another new item to the menu. Don’t eliminate the other foods your baby is eating during that time; you already know these are safe because the child has not had any food reactions up until now. Just don’t add anything else new.


Babies and Allergies: The Top 8 Allergenic Foods

With any new food, you’ll want to be on the lookout for any allergic reactions. There are more than 160 allergenic foods; certain foods may be more allergenic than others. The following eight foods and food groups are known to possibly cause problems with allergic reactions possibly up to 90% of the time. You may want to wait until the baby is older to try some of these foods, especially peanuts. In fact, many experts have suggested waiting until your child is 3 before trying peanuts. Some recent research [See "Protecting Baby Against Food Allergies" below], however, has suggested there may be alternative approaches more appropriate for some children at risk. Your baby's doctor can explain your options. Also, ask your pediatrician questions about any food you are unsure about it.

  • Milk
  • Egg
  • Peanuts
  • Tree nuts (such as walnuts or almonds)
  • Fish
  • Shellfish
  • Soy
  • Wheat


Food Allergy Symptoms to Watch for in Your Baby

Food allergy symptoms usually appear very soon after the food is eaten -- within a few minutes to a couple of hours. If you’re introducing a new food to your baby, keep an eye out for these symptoms:

Severe Food Allergy Symptoms: When to Call 911

Severe allergic reactions can be fatal very quickly. If your baby is having trouble breathing/wheezing, has swelling on her face/lips, or develops severe vomiting or diarrhea after eating, immediately call 911. You can inform your pediatrician at a later time.


Dealing With Mild Food Allergies in Baby

If you see mild symptoms, such as hives or a rash, contact your pediatrician for further evaluation. Once your baby’s specific allergies are identified, the doctor will give you an action plan for managing the allergies (usually, eliminating the food from your baby’s diet) and dealing with accidental exposures.

Remember, just because a baby’s initial allergic reaction to a new food may be mild, it may get worse upon following exposures. Talk to your pediatrician about any food allergy symptoms in your baby.

Some allergies go away with time. Egg and milk allergies often go away as children get older, but peanut, tree nut, and shellfish allergies tend to persist.


The Family Food-Allergy Connection

If there is a family food allergies, your baby has an increased risk of also developing allergies, although it is not a certainty. If you have the allergies, the odds are 50-50 for her to have them as well. 

It’s best to introduce the 8 allergens gradually, at one-to-two week intervals over time so that you can recognize if an allergy develops.

Protecting Baby Against Food Allergies: Easy Does It

In a reversal of earlier policy, the American Academy of Pediatrics is now recommending that potential allergens be introduced to your infant earlier rather than later. In doing so, the move may actually help prevent her from developing allergies to those foods.


Breastfeeding you baby for 4-6 months is the best way to prevent a milk allergy. Remember that breast milk or formula is higher in nutrition. When you begin to introducing whole milk, you should do so under a doctor’s supervision. Yogurt and soft cheeses are fine, because the proteins in these dairy products are broken down and less likely to cause tummy trouble.

The AAP now advises that, in the case of infants who are at high risk of allergies, peanuts should be introduced between 4-6 months. Infants at highest risk of developing peanut allergies are those with eczema or egg allergies or both. It was originally believed that introducing your baby to the foods when she is older might make any reactions more manageable.

Other potential allergens such as tree nuts and fish should be introduced over a period of time as you introduce your baby to solid foods, between 6 and 9 months

You should wait until at least age 1 (some experts say age 2) to introduce honey, which can cause a potentially serious disease called infant botulism. Ask your pediatrician for guidance.


WebMD Medical Reference Reviewed by Dan Brennan, MD on March 05, 2017



American Academy of Pediatrics: "Starting Solid Foods."

Rachel Lewis, MD, assistant professor of clinical pediatrics, Columbia University College of Physicians and Surgeons, New York.

American Medical Association: "Allergic reaction: Food allergies increasing, especially among children."

Medline Plus Medical Encyclopedia: "Food Allergy."

© 2017 WebMD, LLC. All rights reserved.


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