The current guidance is to give your baby well-cooked whole egg, both the yolk and the white together, from around 6 months, once they are ready for solids and have handled a few first foods. The old habit of starting with yolk only and holding back the white is outdated: the American Academy of Pediatrics states there is no evidence that delaying allergenic foods like egg prevents allergies. Cook it until firm, offer a small amount, watch your baby, and then keep egg in regular rotation.

Below is how to do that in practice, why the yolk-first tradition faded, the safe forms by age, and when to talk to your pediatrician first.

Why yolk-first and “wait” advice changed

For years, parents were told to introduce egg late, and to start with the yolk because the white was seen as the more allergenic part. That approach has been reversed. The AAP now advises that highly allergenic foods, including egg, can be introduced around the same time as other solids, and that delaying them offers no protective benefit.

Two trials shaped this shift. In the PETIT trial, a Japanese study of high-risk infants who already had eczema, introducing heated egg in two steps starting at 6 months substantially lowered the rate of egg allergy in the infants studied compared with a placebo group. The trial was stopped early because the difference was so clear. Separately, the EAT trial in the United Kingdom tested early introduction of several allergenic foods, including egg, from around 3 months in breastfed infants; it found early introduction can reduce allergy in babies who actually stick with it, though keeping to the regimen was difficult for many families.

Two things are worth being precise about. These results describe the specific groups enrolled in each trial, not a guarantee for any individual baby, and no app or feeding plan can promise your child will not develop an allergy. And the protective signal was tied to whole cooked egg introduced early and then eaten regularly, which is exactly why the yolk-only, delay-the-white routine no longer makes sense. If you want the bigger picture on sequencing allergens, our guide on what order to introduce allergens walks through it.

The forms of egg by age

Egg is flexible, which makes it one of the easier allergens to serve. The key is that it must be fully cooked and sized for your baby’s stage.

6 to 8 months: Mashed hard-boiled egg (mix a little with breast milk, formula, or water to loosen it), or soft well-cooked scrambled egg in large, graspable pieces. A thin strip of well-set omelette works well for babies doing baby-led weaning because it is easy to hold.
9 to 11 months: Smaller pieces of scrambled or chopped hard-boiled egg as the pincer grasp develops, plus omelette strips or egg folded into soft foods.
12 months and up: Egg in most family forms, still well cooked, as bite-sized pieces or in dishes like frittata.

Egg baked into foods, such as a muffin or pancake, is another gentle way to include it, and baked egg is often introduced as part of the same food. It does not replace offering plain cooked egg, but it is a useful way to keep egg in the diet across the week.

Always cook egg fully: the raw-egg risk

Runny yolks, soft-set scrambles, lightly cooked French toast, and anything made with raw egg (homemade mayonnaise, cookie dough, some ice creams) are not safe for infants. The reason is Salmonella. The U.S. Food and Drug Administration advises cooking eggs until both the yolk and the white are firm, notes that scrambled eggs should not be runny, and lists children among the groups at higher risk for severe illness. For a baby, “well cooked” and “safe from Salmonella” are the same instruction: firm all the way through, every time.

How to offer egg the first time

Pick a calm day when you are not rushing and can watch your baby for a couple of hours afterward. Offer a small amount of well-cooked egg early in the day rather than right before bed, so you can see how they respond while awake.

You do not need to wait several days before offering egg again if it goes well, and you do not need to space every new food far apart; if you have read about that, our post on the three-day wait rule for new foods explains where it came from and what pediatric guidance actually says now. What matters is introducing one new allergen at a time so that, if a reaction happens, you know which food caused it. Egg is a good early allergen to try alongside working peanut into the diet, covered in how to introduce peanut.

What a reaction looks like, and when to get help

Most babies tolerate egg without any problem. When a reaction does happen, it usually appears quickly, within minutes to about two hours. The AAP notes that a food-allergy reaction can include hives or rash, vomiting, or diarrhea, and advises stopping the food and contacting your pediatrician if these occur.

Signs of a severe reaction, such as swelling of the lips or face, repeated vomiting, difficulty breathing, or your baby becoming pale or floppy, are a medical emergency: call your local emergency number right away. Do not try the food again at home after a reaction; the next step is a conversation with your pediatrician, not another taste. Choking is a separate risk from allergy, so serve egg in age-appropriate forms and consider taking an infant first-aid and CPR course through a provider like the American Red Cross so you know what to do in the moment.

When to talk to your pediatrician first

If your baby has severe eczema, an existing food allergy, or has already reacted to a food, the AAP recommends talking with your pediatrician about how and when to introduce highly allergenic foods. Some higher-risk babies benefit from introducing egg under medical guidance, and your pediatrician can advise on timing and whether any testing makes sense first. For everyone else, egg is a normal, nutritious early food that belongs in the rotation.

A note before you start

This article is educational information drawn from published feeding guidelines, not medical advice, and it cannot account for your child’s history; your pediatrician knows your baby and always comes first, especially if there is eczema, a known allergy, or a past reaction. In Miriel’s Allergen Introduction Program (Beta), the egg card tracks your baby’s progress from first taste through to regular rotation, and babies with severe eczema or an existing food allergy are routed to their pediatrician before the program unlocks. You can see how it fits into a full first-foods plan on our starting solids hub.

References

American Academy of Pediatrics. When to Introduce Egg, Peanut Butter & Other Common Food Allergens to a Baby. HealthyChildren.org. link
Natsume O, Kabashima S, Nakazato J, et al. Two-step egg introduction for prevention of egg allergy in high-risk infants with eczema (PETIT): a randomised, double-blind, placebo-controlled trial. The Lancet, 2017. link
Perkin MR, Logan K, Tseng A, et al. Randomized Trial of Introduction of Allergenic Foods in Breast-Fed Infants (EAT). New England Journal of Medicine, 2016. link
U.S. Food and Drug Administration. What You Need to Know About Egg Safety. FDA. link
American Red Cross. Infant CPR and First Aid Training. American Red Cross. link