According to available records, however, virtually nobody had peanut allergy prior to 1900 despite the fact that people have been eating peanuts for ages, which begs the question, why do so many people have peanut allergy today, and from where did this potentially-deadly allergic condition emerge?
In his book The Doctor Within, Dr. Tim O'Shea argues that vaccines may be largely responsible for both the advent and increased prevalence of peanut allergy, noting that many vaccines and even antibiotic drugs contain, or were made using, excipients potentially derived from peanut oil. Since it is a relatively inexpensive oil to produce, refined peanut oil apparently became widely adopted as an excipient of choice in the production of vaccines during the 1960s, according to some reports, and peanut-derived excipients are still believed to be in use today for this purpose.
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