Food Allergies: Safe Introduction of Common Allergens

The Science Has Changed:

• •Old advice: Delay allergens until 1-3 years
• •New research: Early introduction may PREVENT allergies
• •Studies show early exposure reduces allergy risk
• •Waiting may actually increase risk

Key Studies:

• •LEAP Study (peanuts): Early introduction reduced peanut allergy by 80%
• •EAT Study: Early introduction reduced egg and peanut allergies
• •Multiple studies support this new guidance

Current Recommendations:

• •Introduce allergens starting around 4-6 months
• •After a few non-allergen foods established
• •While continuing breastfeeding if possible
• •Earlier than 4 months not recommended
• •Don't delay beyond 6 months for high-risk babies

Who Benefits Most:

• •Babies with severe eczema
• •Babies with egg allergy
• •Family history of food allergies
• •But ALL babies should try early introduction

These cause 90% of food allergies:

1. Peanuts - Most studied, high priority

2. Tree Nuts - Almonds, walnuts, cashews, etc.

3. Milk - Cow's milk protein

4. Eggs - Chicken eggs

5. Wheat - Gluten-containing grain

6. Soy - Soybeans and soy products

7. Fish - Finned fish

8. Shellfish - Shrimp, crab, lobster

9. Sesame - Seeds and tahini

Priority Order:

• •Start with peanuts and eggs (highest priority)
• •Then introduce others
• •All should be introduced by 11-12 months
• •Keep in regular rotation once tolerated

General Rules:

• •One new allergen at a time
• •Introduce during daytime (home all day)
• •Start with tiny amount
• •Increase amount if tolerated
• •Keep in rotation 2-3x per week
• •Have Benadryl on hand (ask healthcare provider for dose)

Safe Forms for Each Allergen:

Peanuts:

• •Smooth peanut butter (thin with water)
• •Peanut powder mixed in puree
• •Start: 1/4 teaspoon
• •Build to: 2 teaspoons regularly
• •NOT whole peanuts (choking)

Eggs:

• •Fully cooked egg (scrambled, hard boiled)
• •Baked in foods
• •Start: Tiny piece
• •Build to: Whole egg
• •NOT undercooked (salmonella risk)

Milk:

• •Whole milk yogurt
• •Cheese
• •Milk in baked goods
• •NOT as main drink before 12 months

Wheat:

• •Baby cereal
• •Bread
• •Pasta
• •Start small

Fish:

• •Fully cooked, boneless
• •Salmon, cod, tilapia
• •Check carefully for bones
• •Start: Flake or two

Shellfish:

• •Fully cooked
• •Start with shrimp (less allergenic)
• •Tiny piece first

Tree Nuts:

• •Almond butter, cashew butter (thinned)
• •Nut flours in baking
• •NOT whole nuts (choking)

Soy:

• •Tofu
• •Soy yogurt
• •Edamame (mashed)

Sesame:

• •Tahini (thinned)
• •Hummus
• •Sesame seeds ground into puree

Day 1: First Exposure

Time: Morning or early afternoon

• •Start with 1/4 teaspoon of allergen
• •Mix with familiar food if needed
• •Give on spoon or finger
• •Watch for 2 hours closely
• •Monitor rest of day

Day 2-3: Wait and Watch

• •Don't give allergen again yet
• •Watch for delayed reactions
• •Hives, vomiting, diarrhea
• •Most reactions happen within 2 hours
• •Delayed reactions can be up to 72 hours

Day 4: Second Exposure (If No Reaction)

• •Double the amount (1/2 teaspoon)
• •Same monitoring
• •Watch for reactions

Day 7+: Regular Introduction (If Tolerated)

• •Continue increasing amount
• •Build to age-appropriate serving
• •Keep in diet 2-3x per week
• •Regular exposure maintains tolerance

If No Reaction After Multiple Exposures:

• •Consider allergen safely introduced
• •Keep in regular rotation
• •Move on to next allergen

MILD Reactions (call your healthcare provider, Monitor):

• •Few hives around mouth
• •Mild redness around mouth
• •Mild itching
• •Runny nose
• •Mild stomach upset

MODERATE Reactions (Call Healthcare provider NOW):

• •Multiple hives or spreading hives
• •Swelling of face, lips, or tongue
• •Vomiting after eating
• •Diarrhea with blood
• •Significant itching or discomfort

SEVERE Reactions (CALL 911 IMMEDIATELY):

• •Difficulty breathing or wheezing
• •Swelling of throat
• •Pale or blue color
• •Severe vomiting
• •Loss of consciousness
• •Multiple body systems affected
• •This is anaphylaxis - LIFE THREATENING

Anaphylaxis Action:

• •Call 911 immediately
• •Give epinephrine if you have it
• •Lay child flat (or sitting if breathing trouble)
• •Don't delay - call first, assess second

Not Usually Allergic Reactions:

• •Rash on body (not near mouth) - may be unrelated
• •Gas or fussiness - may be normal adjustment
• •Mild diaper rash - may be from acidity
• •One-time vomit - may be unrelated

When in Doubt:

• •Trust your instincts
• •Better to call and be safe
• •Take photos of rashes/hives
• •Document what happened and when

Who is High Risk:

• •Moderate to severe eczema
• •Egg allergy already diagnosed
• •Parent or sibling with food allergies
• •Multiple food allergies

What to Do Differently:

For Peanuts Specifically:

• •Talk to healthcare provider or allergist FIRST
• •May need allergy testing before introduction
• •May need supervised introduction in medical office
• •Don't try at home first if high-risk

For Other Allergens:

• •Introduce one at a time carefully
• •Longer waiting periods between new foods
• •Consider allergist consultation
• •Have clear action plan
• •Know signs of reactions

Testing May Be Recommended:

• •Skin prick test
• •Blood test for IgE
• •Oral food challenge in office
• •Allergist determines safety

If Reaction Occurs:

• •Stop that food immediately
• •See allergist for testing
• •Get epinephrine prescription
• •Learn how to use EpiPen
• •Inform all caregivers
• •Create allergy action plan

Commercial Products Available:

Ready Oats, SpoonfulOne, Lil Mixins, etc:

• •Pre-measured allergen powders
• •Mix into purees or cereal
• •Convenient but expensive
• •Contains multiple allergens
• •Good option if overwhelmed

Pros:

• •Easy and measured
• •Multiple allergens at once
• •Saves time
• •Takes guesswork out

Cons:

• •Expensive ($30-60/month)
• •Multiple allergens may mask which caused reaction
• •Not necessary if you're comfortable with regular foods

DIY Approach:

• •Use regular foods from your kitchen
• •Much cheaper
• •More control over single ingredients
• •Teaches baby real food textures
• •Works just as well

Either Way Works:

• •Choose what feels right for your family
• •Both methods are effective
• •Important thing is introducing allergens, not how