Food Allergy Info
When a person has a food allergy, their immune system has an abnormal response to a particular food. This response can cause symptoms such as:
- Itching in the mouth
- In severe cases, serious illness or even death.
When making a diagnosis, your healthcare provider will ask several questions about your medical history, especially concerning the foods you eat and your reactions to them. You may be asked to keep a diary to help with this. Other techniques used to confirm a food allergy diagnosis include elimination diets and blood tests.
Some of the most common food allergies in adults include:
- Shrimp, lobster, crab, and other shellfish
- Peanuts (one of the chief foods responsible for severe anaphylaxis)
- Walnuts and other tree nuts.
Treatment usually involves avoiding the food that causes the reaction.
(For more info, including a detailed description of what happens in the body when an allergen is encountered, click Food Allergy.)