Allergen introduction can make an ordinary breakfast feel unusually high stakes. A spoonful of yogurt or a little egg is still food, but it can arrive with questions about timing, serving form, reactions, and whether everyone else started earlier.
Caregiver-entered Tummi data offers a view of when seven grouped allergens first appear on recorded menus. We calculated the cumulative share with egg, peanut, dairy, wheat or gluten-tagged, sesame, fish, or tree nut foods by the end of months 6 through 9.
The chart reflects recorded meals, not a verified introduction schedule. A family can start using Tummi after a food was first served, and the data cannot see portion, preparation, tolerance, or reaction. Within those limits, it shows a clear difference in when the seven groups appear by age.
Key Findings
- All seven tracked allergen groups appeared in at least some eligible profiles by the end of month 6.
- Egg had the widest recorded reach at every published age.
- Dairy remained the second most widely recorded group through month 9.
- Wheat or gluten-tagged foods reached more than half of eligible profiles by month 8.
- Sesame and tree nuts remained the two least widely recorded groups at every published age.
What appears in the records by the end of month 6?
Every tracked group had appeared in at least some eligible profiles by month 6. Egg had the widest reach at 42.5 percent, followed by dairy at 33.8 percent. Wheat or gluten-tagged foods reached 20.5 percent and peanut reached 18.2 percent.
Fish appeared in 9.8 percent, tree nuts in 4.5 percent, and sesame in 1.8 percent. These values describe the cumulative presence of a group on recorded menus by an age milestone. They do not establish that the first entry was the first time the baby encountered the food.
| Allergen | 6 mo | 7 mo | 8 mo | 9 mo |
|---|---|---|---|---|
| Egg | 42.5% | 59.6% | 70.1% | 73.9% |
| Peanut | 18.2% | 32.1% | 38.6% | 40.4% |
| Dairy | 33.8% | 53.0% | 62.5% | 70.6% |
| Wheat / gluten-tagged | 20.5% | 37.6% | 51.0% | 61.7% |
| Sesame | 1.8% | 5.4% | 8.2% | 11.0% |
| Fish | 9.8% | 22.7% | 29.8% | 39.2% |
| Tree nuts | 4.5% | 12.5% | 20.1% | 20.8% |
Source: Aggregated Tummi product data. Samples change by age. Later age cells are withheld because the eligible group becomes too small.
How does recorded reach change through month 9?
The cumulative share rises for every group across the four published ages. By month 9, egg reached 73.9 percent and dairy 70.6 percent. Wheat or gluten-tagged foods reached 61.7 percent, while peanut and fish reached 40.4 percent and 39.2 percent.
Tree nuts reached 20.8 percent and sesame 11.0 percent by the same milestone. The chart therefore shows growth without convergence. The groups become more common on recorded menus, but their ordering and the gaps between them remain visible.
Which allergen groups lead at every published age?
Egg and dairy occupy the top two positions at months 6, 7, 8, and 9. Egg starts with the wider lead, while dairy comes closer by month 9. The result is consistent within the observed history even though the size of the gap changes.
That consistency does not reveal why the groups appear more widely. The data does not measure household habits, clinician advice, food access, recipe use, feeding approach, or parent confidence. It supports a comparison of recorded reach, not a causal account of the ranking.
What happens among wheat, peanut, and fish records?
Wheat or gluten-tagged foods hold the third position at every published age and pass the halfway mark by month 8. Peanut and fish sit closer together by month 9, though peanut has the wider reach in each age cell shown.
The labels deserve care. Wheat or gluten-tagged is a product-data grouping, not a clinical diagnosis, and the analysis does not test ingredients independently. Peanut and fish are also recorded groups, with no information here about serving form, dose, repeat exposure, or reaction.
How should clinical guidance be read alongside the timing pattern?
The American Academy of Pediatrics provides parent-facing context on timing, readiness, and safe forms for common allergens. The NIAID peanut guidelines add risk-based clinical guidance, including considerations for higher-risk infants. Those sources address what families and clinicians should consider.
The Tummi figure answers a different question: when does a grouped allergen appear on a recorded menu? A descriptive record cannot determine whether an introduction matched guidance. If your baby has severe eczema, a known allergy, a previous reaction, or another risk factor, follow your clinician's individualized advice rather than this aggregate pattern.
What important allergen details are missing?
The record does not show the amount offered, the texture, the preparation, the amount swallowed, or whether a food was tolerated. It also does not capture a missing serving. A first appearance should therefore be read as the first appearance available to this analysis.
The FDA identifies nine major food allergens in the United States, while this figure follows seven grouped categories. Soy and shellfish are not separate series here, so the chart is not a complete inventory of every major allergen. It should not be used to infer that an absent group was never served.
Methodology and limitations
The cumulative allergen analysis uses the eligible production history available for the existing report. It follows profiles with sufficient age and record information through the end of each published month.
A profile enters a group's cumulative percentage once a food tagged to that group appears in its available Tummi data. Later records for the same group do not create a second first appearance.
The seven series are egg, peanut, dairy, wheat or gluten-tagged foods, sesame, fish, and tree nuts. These are grouped product-data labels and do not represent the full FDA list of nine major allergens.
First recorded is not first introduced. Families can begin recording after feeding has started, omit meals, or use broad food entries. The analysis does not verify timing, serving form, dose, ingestion, tolerance, reaction, or diagnosis.
Months 10 through 12 are withheld because the eligible groups become too small for a stable result. Tummi users are self-selected trackers, so the published percentages describe this product cohort and are not population estimates.
The dataset is self-selected because it describes families who chose to use Tummi. The findings describe aggregated app activity and are not population estimates for every family, baby, or country.
Everything shown here is aggregated. No names, individual profiles, free-text answers, or personal meal histories are published.
Conclusion
All seven tracked allergen groups appear on at least some recorded menus by month 6, but they do not spread at the same rate. Egg and dairy lead throughout the published window, wheat or gluten-tagged foods form a clear third group, and peanut and fish occupy the middle by month 9.
Sesame and tree nuts remain less widely recorded, even as both rise with age. The chart cannot explain those gaps, and it cannot turn first records into verified introduction dates. Its contribution is a measured description of allergen timing in caregiver-entered data, not a judgment about what families did or should have done.
For a parent, the distinction is practical. Use clinical sources for readiness, safe forms, and individual risk. Use this report to understand the pattern in Tummi records, including the evidence it contains and the important details it does not.
Frequently Asked Questions
Does first recorded mean first introduced?
No. A family may begin recording meals after a food was first served, and an earlier serving may be missing. The chart shows first appearance in available Tummi data.
Does the report show whether a baby had a reaction?
No. Reaction, tolerance, diagnosis, amount, and serving form are outside this analysis. A record only establishes that a tagged food appeared on the recorded menu.
Why are soy and shellfish not shown?
This study follows seven grouped allergens from the current dataset. It does not present a complete analysis of all nine major allergens identified by the FDA.
Why does the figure stop at month 9?
Later eligible groups are too small for a stable published comparison, so months 10 through 12 are withheld rather than presented as reliable milestones.
Sources
- Tummi Food Team, 2026. Aggregated Tummi feeding records and onboarding responses. First-party product data.
- AAP allergen introduction guide. Parent-facing clinical context on timing, readiness, and safe allergen serving forms.
- NIAID peanut allergy prevention guidelines. Formal risk-based guidance for early peanut introduction, including higher-risk infants.
- FDA food allergen overview. The U.S. list of nine major food allergens. This study tracks seven grouped allergens.