I've been severely allergic to peanuts and all nuts since I was born. And when I say severe, if I don't get an epinephrine injection within 5 minutes of allergen consumption, I die from anaphylaxis.
The prevalence of allergies is definitely becoming a lot higher, however, we don't know why for sure. There are two theories which have got a lot of attention:
1. Since the prevalence of food allergies is higher in developed countries, it's possible that the environment in which we live is too clean. That is, infants aren't given access to microbes which help the body to develop a balanced immune system.
2. Processed foods. How foods are produced may make them more likely to cause an allergic reaction.
With that, food industries are becoming more conscious of the growing prevalence, and allergy-friendly products are becoming more and more available.
E: I've never actually had an allergic reaction because I'm SO cautious about what I eat, but I think it's important that people understand the danger food allergies can pose. For that reason, I taught all my friends how to use my epinephrine. Other people with allergies should do the same. For me all it would take is a spec of peanut or nut to trigger an anaphylactic reaction.
E2: To further answer your question, I wrote a paper on food allergies a while ago. Basically what happens when you have an allergy is your body overeacts to a harmless substance, sending immunoglobulin E antibodies as a "defense" mechanism. This in turn results in an inflammatory reaction (and can potentially, as in my case, block my trachea). We currently don't have a strong understanding of how allergies "disappear" or suddenly "appear" other than knowing they can appear and disappear.
20-Apr-2015 02:16:18
- Last edited on
20-Apr-2015 02:26:23
by
Farmer Twunk