Start with just a small taste, roughly one to two teaspoons of well-cooked egg. If your baby tolerates that without any signs of an allergic reaction, you can gradually increase the amount over the following days until you reach about one-third of an egg per serving. That one-third portion, whether scrambled or hard-boiled, is the standard developmentally appropriate serving size recommended for infants.
Why Start So Small
Egg is one of the most common food allergens in young children, so the goal of that tiny first taste is simply to test the waters. You’re watching for a reaction, not trying to fill your baby up. A teaspoon or two gives your baby’s immune system enough exposure for you to spot any signs of trouble while keeping the risk low. If that first taste goes well, offer a slightly larger amount the next time, working up to about a third of an egg over several exposures.
Once your baby is comfortably eating that amount with no issues, keep egg in their diet regularly. Consistent, repeated exposure to common allergens after a successful introduction is the current approach to allergy prevention, rather than the older advice of delaying allergenic foods.
When Babies Can Start Eating Egg
Most babies can try egg as soon as they’re eating solid foods, typically around six months. There’s no need to wait until a certain age to introduce the yolk or the white separately. Current pediatric guidance supports offering the whole egg (both white and yolk, fully cooked) from the start of solids. A study from Washington University in St. Louis found that infants introduced to eggs beginning at six months had significantly higher blood levels of choline and DHA, an omega-3 fat that serves as a building block of the brain.
How to Prepare Egg Safely
The egg needs to be cooked all the way through, with no runny yolk or translucent white. Undercooked egg carries a salmonella risk that’s especially dangerous for infants. Two methods work well for a baby’s first egg:
- Hard-boiled: Place an egg in a small saucepan, cover with cold water, bring to a gentle boil, and cook for 8 to 10 minutes. Drain and cool under cold running water. Mash a small portion with a fork, adding a little breast milk, formula, or water if the texture is too dry for your baby.
- Scrambled: Whisk the egg for 15 to 20 seconds. Heat a nonstick pan over low heat, add the egg, and stir continuously, pulling from the edges toward the center to form soft, small curds. Let it cool and offer a spoonful of the softest pieces.
For younger babies just starting solids, you can mash hard-boiled egg into a smooth paste or mix scrambled egg into a puree they already enjoy, like sweet potato. For babies practicing baby-led weaning, soft scrambled egg cut into small strips works well as a finger food.
What an Allergic Reaction Looks Like
Egg allergy symptoms typically appear within a few minutes to a few hours after eating. The most common reaction is hives, which look like raised, itchy red bumps on the skin. Other mild to moderate signs include a stuffy or runny nose, sneezing, vomiting, stomach cramps, or an upset stomach.
Severe reactions (anaphylaxis) are rare but require immediate emergency care. Signs include swelling of the throat, difficulty breathing, wheezing, a rapid heart rate, or sudden dizziness and limpness. If your baby shows any difficulty breathing or becomes suddenly pale and unresponsive, call emergency services right away.
Because reactions can take a couple of hours to show up, offer that first taste of egg early in the day rather than right before a nap or bedtime. Stay close and observe your baby for at least two hours afterward. It also helps to introduce egg on a day when no other new foods are on the menu, so you can clearly identify what caused a reaction if one occurs.
Why Egg Is Worth Introducing Early
Eggs are one of the most nutrient-dense foods you can offer an infant. They’re packed with protein, choline (a B-vitamin-like nutrient critical for brain development), DHA, vitamins A and B12, and selenium. Choline and DHA in particular play essential roles in how an infant’s brain grows and functions during the first year. Eggs deliver these nutrients at levels comparable to or higher than other animal foods, and they’re relatively affordable, making them a practical staple as your baby’s diet expands.
A single egg contains far more than a baby needs in one sitting, which is another reason that one-third-of-an-egg serving works well. You can cook one egg and spread it across two or three meals over the course of a day or two, stored in the refrigerator.