Food allergies among children have risen 18 percent from 1997 to 2007, causing more than a few raised eyebrows among researchers and health officials. The first federal study of the issue found that one in 26 children now have food allergies, compared to one in 29 in 1997.

One in 26 U.S. children have food allergies — up 18 percent in the past decade.

In all, the Centers for Disease Control and Prevention (CDC) found that about 3 million kids have food allergies, which occur when your immune system overreacts to a food it mistakenly believes is harmful. If your immune system determines, for instance, that peanuts are harmful, it will produce specific immunoglobulin E (IgE) antibodies to peanuts.

The next time you eat the particular food, your immune system then releases chemicals, including histamine, that are intended to protect your body from the substance. The problem is that these chemicals trigger an array of irritating and potentially very serious symptoms that can impact your respiratory system, gastrointestinal tract, skin and cardiovascular system.

In fact, the number of children hospitalized for food allergies has also increased, according to the CDC. Hospital discharges rose from 2,600 a year in the late 1990s to over 9,500 a year in recent years.

Yet, food allergies are not the only ones on the rise.

A national survey conducted from 1988 to 1994 by the National Institutes of Health found that more than 50 percent of Americans ages 6 to 59 are sensitive to at least one allergen. That’s two to five times the rate found in a previous 1976 to 1980 survey.

Why are Allergies Increasing so Dramatically?

One theory is that parents and doctors are now more aware of allergies and their symptoms, meaning they’re more likely to identify the problem.

“A couple of decades ago, it was not uncommon to have kids sick all the time and we just said ‘They have a weak stomach’ or ‘They’re sickly,”‘ Anne Munoz-Furlong, chief executive of the Food Allergy & Anaphylaxis Network, told CNN.

Yet, the increases are steep enough to suggest that something deeper is going on. Some potential causes of the emerging allergy epidemic include:

• Over-sanitized environments and too many antibiotics (in food and as medicine). “We’ve developed a cleanlier lifestyle, and our bodies no longer need to fight germs as much as they did in the past,” said Marc McMorris, a pediatric allergist at the University of Michigan Health System, in Live Science. “As a result, the immune system has shifted away from fighting infection to developing more allergic tendencies.”
• Air pollution. Diesel fumes, ozone and other common air pollutants are known to trigger allergies and asthma. As levels of pollution rise, so do allergies. In fact, according to a study led by Joachim Heinrich, Ph.D., of the German Research Center for Environment and Health at the Institute of Epidemiology, in Munich, traffic-related air pollution can increase the risk of allergy and atopic diseases in children by more than 50 percent!
• Children are taking longer to outgrow food allergies than in the past.
• Peanut allergies in children have doubled, studies show, fueling the increase (yet no one knows exactly why peanut allergies are rising).

Source: sixwise.com

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