Children affected by peanut allergy has doubled in the past 20 years. Interestingly, it is more common in the United States than in Asian countries; although the consumption of peanuts over there is at least as high, if not higher than in the United States. The difference is that in the United States, we mostly consume dry roasted peanuts. In Asia, they are usually boiled or fried. Studies demonstrate that roasting peanuts results in the generation of new proteins which have a higher allergic potential, perhaps explaining the higher incidence of peanut allergies in the USA compared to Asian countries.
What are Peanuts?
Peanuts, along with peas, lentil, and beans are legumes. It is extremely rare for someone to have a cross-reactivity between peanuts and other legumes and it is therefore safe to eat other legumes (perhaps to the dismay of children!). While tree-nuts are not related to peanuts, about half of peanut allergic patients will also be allergic to tree-nuts. Even if you are not allergic to tree-nuts, it is important to avoid them as there is a risk that trace amounts of peanuts will be found on tree-nut products since most tree-nut processing plants also process peanuts.
Is this For Life?
Peanut allergy appears to be a life long condition for the majority of people. However, it does go away in some, and studies suggest that up to 20% of children outgrow their peanut allergy by age 6. Research is ongoing to determine whether allergy shots or allergy drops (sublingual immunotherapy) may be of benefit for food allergies.
Avoidance Basics
Reading food labels is extremely important. As a rule of thumb, you should avoid anything with the word “nut” in it. Studies demonstrate, however, that it is safe to eat foods cooked in peanut oil—unless this oil is cold processed or labeled as gourmet peanut oil. It is therefore safe to eat foods cooked in peanut oil, unless it is cold processed, expelled, extracted, or gourmet oil. But looking for the word “nut” is not always enough! Hidden sources of peanuts include Asian dishes (such as egg rolls or dishes with Satay sauce, which is made with peanuts), nougat, chocolate, baked goods such as cookies and cakes. While sunflower seeds do not cross-react with peanuts, they are often processed on the same equipment used to manufacture peanuts, and generally should be avoided since they could be contaminated with trace amounts of peanuts.
Avoid foods which contain:
These foods may contain peanuts:
Most peanut allergic individuals can consume peanut oil safely, unless it is cold pressed, expelled, extruded, or gourmet peanut oil.
Nutmeg is safe to eat. Although the name of this spice would lead one to believe it is made from nuts, nutmeg is actually made from the seed of the fruit that grows on a tropical evergreen called Myristica fragrans.
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