While you can find plenty of these at-home tests online, experts say they aren't reliable and may even do more harm than good. Find out more by clicking the link below.
NewsletterA walk through a pharmacy or scroll through Amazon will quickly reveal over a dozen at-home tests for food sensitivities and allergies –– tools that haveThese tests claim to reveal users’ reactivity to up to hundreds of different foods, only a hair strand or finger prick required. But how accurate are they? According to some experts, not very, and it’s possible they may be doing more harm than good.
This process triggers symptoms ranging from hives and swelling to wheezing and difficulty breathing. It’s the swelling that can be life-threatening if it cuts off the windpipe. Allergies can produce nearly immediate effects, Gupta notes, in contrast to other food reactions. Tamara Freuman, a registered dietician who specializes in digestive and metabolic diseases, notes that her patients commonly mix up allergies, intolerances and sensitivities due to the lack of education and conversation on the topic. “I see it pretty much daily. A lot of people use the terms interchangeably, to the point where people who are lactose intolerant will say they have a dairy allergy,” she says. “But there’s a really big difference.
However, according to the American Academy of Allergy, Asthma & Immunology, there is no scientific evidence to support a correlation between IgG and food sensitivity. The existence of IgG is likely a “physiologic response of the immune system” that “may be the normal human response” to food, the academyGupta agrees: A high IgG level probably represents a high level of exposure to a certain food, she says, but nothing more.
“It really does a number on somebody to get a list in the mail of two dozen or three dozen foods that they're being told they're sensitive to,” Freuman says. These results can lead to life-altering dietary and lifestyle changes that may not even be necessary.
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