Cross-Reactivity between Tree Nuts

Cross-reactivity between tree nuts occurs when the immune system mistakenly identifies proteins in different types of tree nuts as the same. For example, if someone is allergic to walnuts, they might also react to pecans or cashews due to similar protein structures. This can lead to allergic reactions even if the person has never eaten the other nuts before. It’s important for individuals with nut allergies to consult with a healthcare professional to understand which nuts may pose a risk and to manage their diets safely.