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Is Allergies Genetic?
- Heritability
- ~50%
- Inheritance
- multifactorial
- Key genes
- FLG,IL4,HLA-DR
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Allergies including hay fever and food allergies have a heritability of around 33–73% depending on the type. The FLG gene and HLA region are strongly associated.
How Genetic Is Allergies?
Genetics plays a meaningful role in Allergies, with heritability estimated at around 50%. However, environmental factors — including diet, lifestyle, and exposure — also significantly influence risk.
Key genes associated with Allergies: FLG,IL4,HLA-DR. Variants in these genes have been identified through genome-wide association studies (GWAS) and clinical research as influencing susceptibility or severity.
Source: CDC Genomics
Does Family History Matter for Allergies?
Family history does matter. Having close relatives with Allergies can increase your personal risk, though it is not deterministic. Maintaining a healthy lifestyle and regular screening remain important regardless of family background.
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