When most people think food allergy, they think an immediate collapse to the floor, the face turning blue. Yes, this is one type of allergy, the sort everyone fears when they hear about a peanut allergy for example.
Possibly more common is the “delayed onset” food allergy, where symptoms do not appear for hours or even days. For example, when I eat wheat, I don’t notice any symptoms for about 24 hours. Some people might take two days before they feel anything. In rare cases, symptoms may not appear for a week.
This makes the job of determining what you are allergic to very difficult.
List of Common Allergens
Here are 20 of the most common allergenic foods:
- Cow’s Milk
- Wheat gluten (gliadin)
- Gluten (in wheat, oats, rye and barley)
- Egg Whites
- Cashew nuts
- Egg Yolk
- Soya beans
- Brazil nuts
- Kiwi fruit
- chilli peppers
- Sesame seeds
- Sunflower seeds
Other foods commonly associated with allergic reactions (although not necessarily delayed) include:
See the related story Self-Testing for Allergies for a suggested approach.