The short version
CDC guidance says potentially allergenic foods can be introduced when other foods are introduced, while noting that babies with severe eczema or egg allergy should have clinician guidance for peanut introduction.
HealthyChildren.org says that once a baby is ready for solids, typically around 6 months, delaying allergenic foods like egg, peanut, dairy, and sesame has not been shown to prevent allergies.
What to log
For each allergen, record the food source, preparation form, date, amount, and any symptoms. If you call a clinician, log that too. You are building a useful history, not trying to solve immunology at the kitchen table.
- Food and allergen category.
- Preparation texture and amount.
- Timing of any symptoms.
- Whether care was sought or advice was given.
When to stop tracking and get help
If your baby has trouble breathing, swelling of lips, tongue, or face, repeated vomiting, widespread hives, unusual lethargy, or you think this may be an emergency, seek urgent medical care now.