Allergen Tracker

Track your baby's progress through the top 9 allergens

Current guidelines recommend early introduction of allergens (from 4-6 months) to reduce allergy risk. Tap a status badge to cycle through: Not Started → Introducing → Passed → Reaction.

Top 9 Allergens

0/9 cleared
Cow's Milk

Can introduce dairy products (yogurt, cheese) from 6 months. Whole milk as a drink from 12 months.

Introduction protocol

  • Start with a small amount of plain whole-milk yogurt
  • Wait 3-5 days before introducing another new food
  • Watch for reactions for at least 2 hours after first exposure
  • Gradually increase amount over several days

Watch for

  • Hives or skin rash
  • Vomiting or diarrhea
  • Bloody stool
  • Fussiness or excessive gas
  • Eczema flare-up

Common foods: Yogurt, Cheese, Butter, Cream, Ice cream

Egg

Introduce well-cooked egg from 6 months. Early introduction may reduce allergy risk.

Introduction protocol

  • Start with a small amount of well-cooked egg (scrambled is easiest)
  • Offer both white and yolk - the protein that causes reactions is in the white
  • Wait 3-5 days before introducing another new food
  • Continue offering 2-3 times per week to maintain tolerance

Watch for

  • Hives around mouth or body
  • Vomiting
  • Swelling of face or lips
  • Worsening eczema

Common foods: Scrambled egg, Hard-boiled egg, Egg in baked goods

Peanut

AAP recommends introducing peanut as early as 4-6 months, especially for high-risk babies (those with severe eczema or egg allergy).

Introduction protocol

  • NEVER give whole peanuts or chunky peanut butter - choking risk
  • Mix smooth peanut butter with warm water or breast milk to thin it
  • Or use peanut puffs (like Bamba) softened in milk
  • Start with a tiny amount on the tip of a spoon
  • Wait 10 minutes, then give a bit more if no reaction
  • For high-risk babies, discuss with your pediatrician first

Watch for

  • Hives
  • Swelling of face, lips, or tongue
  • Vomiting
  • Coughing, wheezing, or difficulty breathing - call 911

Common foods: Thinned peanut butter, Peanut puffs, Bamba snacks

Tree Nuts

Introduce tree nut butters (thinned) from 6 months. Never give whole nuts - choking hazard until age 4+.

Introduction protocol

  • Use smooth nut butters thinned with water or milk
  • Introduce one tree nut at a time
  • Wait 3-5 days between new tree nuts
  • Continue offering regularly to maintain tolerance

Watch for

  • Hives or rash
  • Swelling
  • Vomiting
  • Difficulty breathing - call 911

Common foods: Almond butter, Cashew butter, Walnut

Wheat

Introduce wheat-containing foods from 6 months.

Introduction protocol

  • Start with infant cereal or soft bread strips
  • Wait 3-5 days before introducing another allergen
  • Watch for digestive symptoms

Watch for

  • Hives or rash
  • Vomiting or diarrhea
  • Bloating or excessive gas
  • Eczema flare-up

Common foods: Bread, Pasta, Cereal, Crackers

Soy

Introduce soy foods from 6 months.

Introduction protocol

  • Start with soft tofu - mash it or cut into small pieces
  • Edamame should be mashed or cut (choking risk when whole)
  • Wait 3-5 days before next new food

Watch for

  • Hives
  • Vomiting or diarrhea
  • Fussiness
  • Eczema flare-up

Common foods: Tofu, Edamame, Soy yogurt

Fish

Introduce well-cooked, deboned fish from 6 months. Great source of omega-3.

Introduction protocol

  • Start with mild white fish (cod, tilapia) - flake it finely
  • Ensure all bones are removed
  • Cook thoroughly - no sushi or raw fish for babies
  • Wait 3-5 days before next new allergen

Watch for

  • Hives or skin rash
  • Vomiting
  • Swelling of face or lips
  • Difficulty breathing - call 911

Common foods: Salmon, Cod, Tilapia

Shellfish

Can introduce well-cooked shellfish from 6 months. Finely chop or puree.

Introduction protocol

  • Cook thoroughly and chop finely or puree
  • Start with a very small amount
  • Watch closely for reactions - shellfish allergy can be severe
  • Wait 3-5 days before next new allergen

Watch for

  • Hives
  • Swelling of face, lips, or throat
  • Vomiting
  • Difficulty breathing - call 911

Common foods: Shrimp, Crab, Lobster

Sesame

Introduce sesame from 6 months. Sesame was added as a major allergen in 2023.

Introduction protocol

  • Start with a thin layer of tahini mixed into puree or on toast
  • Or offer hummus (contains tahini)
  • Wait 3-5 days before next new allergen
  • Continue offering regularly

Watch for

  • Hives or rash
  • Vomiting
  • Swelling
  • Difficulty breathing - call 911

Common foods: Tahini, Sesame seeds (ground), Hummus

Based on AAP and LEAP study guidelines. Discuss allergen introduction timing with your pediatrician, especially if your baby has severe eczema or a family history of food allergies. All data stays on your device.