The only thing more terrifying than the horror movies you're watching is the contents of that popcorn bowl sitting in your lap. In its truest form, popcorn really is a smart, healthy snack--even a superfood. Its purity went up in flames, though, once food manufacturers got hold of the beloved snack and created convenient, microwavable popcorn bags. Americans woof down a whopping 52 quarts of popcorn a year, and much of that is from microwavable versions. But before you nuke one more bag, you need to know the health risks involved.
Like many fast-food packaging, most microwavable popcorn bags are coated with perfluorochemicals, or PFCs, a class of chemicals linked to various cancers and reproductive system damage. Food manufacturers add the obesity-promoting chemicals to bags to make them more greaseproof, even though these chemicals have been linked to thyroid disease and ADHD, among other ills. Once ingested, PFCs remain in our bodies for a long time, which is another area of concern for these troubling chemicals. So how do you know if your favorite brand uses these chemical-laden bags? It's tough to know for sure. "Typically, packaged food manufacturers, organic or otherwise, buy their food packaging from another supplier, and they themselves might not know what is the exact composition of food packaging," explains Olga Naidenko, PhD, senior scientist at Environmental Working Group (EWG), a nonprofit human and environmental health watchdog group. "This is an area where consumers should be calling for more information."
It's not just the popcorn bag chemicals public health experts are concerned about, either. Harsh chemicals are often applied to popcorn and other pre-packaged foods to fool our taste buds into thinking it's freshly made fare. One of the most acutely toxic popcorn chemicals--diacetyl, the fake flavor used to create a buttery flavor--has been linked to lung damage in microwavable-popcorn factory workers and, in rare cases, in consumers, too. "Researchers from the National Institute for Occupational Safety and Health discovered that workers inhaling this chemical, as was happening in microwave-popcorn manufacturing, develop severe lung disease, literally losing the ability to breathe," The bad PR prompted many manufacturers to phase out this "natural flavoring," although diacetyl replacements are similar chemicals that may also damage lungs.
Genetically engineered food ingredients have never been tested for long-term impact on human health, and some preliminary animal studies suggest GMOs could cause digestive disease, food allergies, and even tumors. If your popcorn is not organic, you're running the risk that the oils and flavoring agents used could contain GMO material.
Industrialized fats like trans fats are a horror to your heart and have even been linked to reproductive problems like endometriosis. Food manufacturers love them because they help keep products shelf-stable, but the dangerous fats aren't always easy to ID on the label. Even if the nutrition label on your favorite popcorn brand reads "0% trans fat," you may want to take a closer look. Any hydrogenated oils on the label indicate the presence of trans fats. The loophole? If it's less than 0.5 percent, food manufacturers don't have to post trans fat percentage on the label.
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