If we look at the news, we see that American consumers have become much more aware of nutrition and diet. Our voices are being heard by food manufacturers, fast casual chains and even some fast food giants. Manufacturers are removing ingredients we find objectionable. Fast food is becoming less desirable. And Panera Bread recently committed to removing over 150 controversial ingredients from their menu items. All seems to be well in food land, doesn’t it?
Unfortunately, that’s not exactly true. FoodFacts.com was disturbed to learn that according to new information, most of the foods we buy are highly processed and loaded with sugar, fat and salt.
We like junk food so much that 61% of the food Americans buy is highly processed, according to research published in the American Journal of Clinical Nutrition. And almost 1,000 calories a day of person’s diet come solely from highly processed foods.
Not all processed food is the same, however. The USDA classifies processed food as any edible that’s not a raw agricultural commodity, so even pasteurized milk and frozen fruits and vegetables count. “It’s important for us to recognize that a processed food is not just Coca-Cola and Twinkies—it’s a wide array of products,” says study author Jennifer Poti, a research assistant professor at the University of North Carolina at Chapel Hill.
So in the first study of its kind, researchers scrutinized our diets by analyzing a massive set of data of the foods we buy while grocery shopping. The stats came from 157,000 shoppers, who tracked their edible purchases with a barcode scanner from 2000-2012, for anywhere from 10 months to 14 years.
Using software that picked out words in the nutrition and ingredient labels, the 1.2 million products were placed into one of four categories : minimally processed—products with very little alteration, like bagged salad, frozen meat and eggs—basic processed—single-ingredient foods but changed in some way, like oil, flour and sugar—moderately processed—still recognizable as its original plant or animal source, but with additives—and highly processed—multi-ingredient industrial mixtures that are no longer recognizable as their original plant or animal source.
No surprise, our favorite categories are those last two. More than three-quarters of our calories came from highly processed (61%) and moderately processed (16%) foods and drinks in 2012. Best-selling products were refined breads, grain-based desserts like cookies, sugary sodas, juice, sports drinks and energy drinks.
Preferences for highly processed foods were remarkably stable over time, Poti says, which likely has implications for our health, since the study also found that highly processed foods were higher in saturated fat, sugar and salt than other purchases. But interestingly, no U.S. study has yet looked at the link between highly processed foods and health outcomes like obesity and diabetes, Poti says.
To be clear, the researchers aren’t pooh-poohing processing, per se. “Food processing is important for food security and nutrition security of Americans,” Poti says. The study wasn’t able to capture the full spectrum of our diets—loose spinach doesn’t come with a barcode, after all—and the authors acknowledge that food purchasing doesn’t always directly translate to dietary intake. But the results suggest that we might want to swap some bags of chips for, say, cans of beans. “Foods that required cooking or preparation”—like boxed pasta and raw eggs—”were generally less than 20% of calories purchased throughout the entire time period,” Poti says.
So we’re getting it, but we’re not getting it. FoodFacts.com often wonders if average consumers associate nutritional awareness with more obvious junk food … fast food and fast casual chains, soda and specific controversial ingredients that have received lots of negative publicity. Is it harder to associate a box of instant mashed potatoes with the term “junk food,” than it is to link a Big Mac to the phrase? Does everyone understand what highly processed foods actually are? Or are foods in boxes and cans somehow immune to the association because they live on our grocery store shelves?
We’ve still got so much work to do.