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Is My Baby Having An Allergic Reaction? 5 Signs To Watch For

July 22, 2022 3 min read

From pureed veggies to nut butters and puffs—one of the most exciting milestones when raising littles is watching them try new foods! As food becomes an everyday part of their routine, a diverse diet is essential in helping them get the nutrients they need for healthy growth and development. But introducing new foods can understandably cause concern in parents, especially when it comes to the most common food allergens.

How do you know if your child is showing signs of an allergic reaction after eating a new food? Learn more about our top five signs to watch out for.

How long does it take your baby to show signs of an allergic reaction?

Most food-related allergy symptoms occur within minutes of eating or being exposed to allergen proteins, but allergic reactions can still occur within 2-4 hours of ingestion.

First-time exposure, especially with infants, is more likely to cause a mild reaction if your child has food allergies. However, if an allergy exists, repeated exposures can develop into more serious reactions

Signs of an allergic reaction in a baby

An allergic reaction can be seen in the skin, eyes, and mouth, and in more severe cases, can affect your infant’s breathing, stomach, and heart. If you’re looking for signs of an allergic reaction in your little one, here’s what to watch for:

1. Skin (Face or Body)

  • Hives and raised bumps
  • Redness
  • Itchiness
  • Swelling
2. Mouth and Eyes
  • Swollen lips, tongue, and eyes
  • Itchy and red skin around the eyes and in the mouth
  • Tearing eyes
3. Breathing  & Respiratory
  • Difficulty breathing
  • Throat tightness
  • Coughing
  • Wheezing
  • Anaphylaxis

4. Stomach

  • Nausea and vomiting
  • Diarrhea and cramping

5. Heart

  • Lightheadedness
  • Low blood pressure
  • Dizziness
  • Loss of consciousness

Every baby will react differently to a food allergy

Although hives, nausea, and vomiting are the most common allergic reaction symptoms for infants, all children will respond differently. Whether it is redness of the skin or anaphylaxis, when a reaction does occur, immediately stop feeding that food to your little one and seek medical assistance. 

Food allergy reactions can become more dangerous, even life-threatening, as your child ages and experiences repeated reactions. If you suspect your child has a food allergy, contact their doctor immediately for further testing.

What’s the difference between an allergic reaction and intolerance?

When you have a true food allergy, your immune system causes the reaction. Your immune system targets the food protein as being harmful, and overreacts by producing antibodies called Immunoglobulin E (IgE). These antibodies travel to cells that release chemicals, causing an allergic reaction

If you have a food sensitivity or intolerance, your digestive system triggers the reaction when it is having difficulty digesting a certain substance in the food. Symptoms of food sensitivity or intolerances often include gas, bloating, diarrhea, constipation, stomach pain or cramping, heartburn, and nausea.

Learn more about the difference between a food allergy and intolerance.

Introduce Common Food Allergens Early and Often With SpoonfulONE

At SpoonfulONE, our mission is to help stop food allergies before they ever start*. As the most complete early allergen introduction system, every serving of SpoonfulONE includes the foods responsible for over 90% of food allergies* and is the only product to grow with your baby in multiple age-friendly formats.
At SpoonfulONE, safety is our #1 priority. Here are just a few features of our allergen introduction system: 
  • Aligns with AAP guidelines to introduce common allergens around 4-6 months

  • We were created by a globally renowned pediatric allergist, Dr. Kari Nadeau

  • Our system is recommended by over 3,000 pediatricians

  • SpoonfulONE was founded by women who are scientists and moms, with an advisory team of world-leading scientific experts

  • Every product is made with Certified Organic Ingredients and has no artificial colors, flavors or preservatives

  • Our product is tested up to 3 times (each individual ingredient, after blending, and final product) to ensure it meets or exceeds national and international standards for food safety and protein integrity

  • We are the only food allergen introduction company with a patented formula and proprietary research

With over three million servings fed, our gentle and safe products are perfect for little tummies. Ready to join the SpoonfulONE family? Shop now!