Allergy risk
What's their risk of allergies?
Atopy — eczema, food allergy, asthma, hay fever — runs strongly in families. Knowing the risk early lets you make better calls on early food introduction, eczema care, and pet ownership.
Mom's atopic conditions
Select all that apply, or none
Dad's atopic conditions
Select all that apply, or none
Older sibling already?
Chance of developing some allergic condition
15%vs. 25% baseline
In or near the typical range.
Compared to baseline
For your baby15.0%
Average baby25.0%
Risk by specific condition
Eczema12% · baseline 12%
Asthma8% · baseline 8%
Hay fever15% · baseline 15%
Food allergy8% · baseline 8%
Conditions you both share carry the highest risk for that specific condition — that's the strongest signal in the literature.
What actually moves the needle
- Early peanut introduction (4-6 months)Reduces peanut allergy risk by ~80% in high-risk infants. The LEAP trial changed pediatric guidance worldwide.
- Aggressive eczema treatmentHealthy skin is a huge protective factor. Don’t under-treat — talk to a derm if OTC isn’t cutting it.
- Diverse early dietIntroducing varied foods between 4-12 months is associated with lower allergy rates.
- Pets in the first yearCounterintuitively, exposure to cats and dogs early is associated with fewer allergies.
How accurate is this, honestly?aboutFamily-history-based
AccuracyFamily-history-based
Even at 70%+ predicted risk, plenty of those kids never develop a single allergy. Risk isn't destiny — and a lot of what determines outcomes happens in the first year of life, where your choices actually matter. This is the calculator most worth taking to your pediatrician.
Read the full methodology →