By Lauren F. Friedman
By the time you open a container of yogurt, the food has taken a long journey to reach your spoon. You may have some idea of that journey: From cow to processing to packaging to store shelves. But at each step, there is a chance for a little something extra to sneak in, a stowaway of sorts that shouldn’t be there.
That unexpected ingredient is something called a plasticizer: a chemical used to make plastic more flexible and durable. Today, plasticizers—the most common of which are called phthalates—show up inside almost all of us, right along with other chemicals found in plastic, including bisphenols such as BPA. These have been linked to a long list of health concerns, even at very low levels.
Consumer Reports has investigated bisphenols and phthalates in food and food packaging a few times over the past 25 years. In our new tests, we checked a wider variety of foods to see how much of the chemicals Americans actually consume. The answer? Quite a lot. Our tests of nearly 100 foods found that despite growing evidence of potential health threats, bisphenols and phthalates remain widespread in our food.
The findings on phthalates are particularly concerning: We found them in almost every food we tested, often at high levels. The levels did not depend on packaging type, and no one particular type of food—say, dairy products or prepared meals—was more likely than another to have them.
For example, we found high levels in, among other products, Del Monte sliced peaches, Chicken of the Sea pink salmon, Fairlife Core Power high-protein chocolate milkshakes, Yoplait Original French vanilla low-fat yogurt, and several fast foods, including Wendy’s crispy chicken nuggets, a Chipotle chicken burrito, and a Burger King Whopper with cheese. Organic products were just as problematic: In fact, the highest phthalate levels we found were in a can of Annie’s Organic cheesy ravioli.
Yet some products had much lower levels than others. A serving of Pizza Hut’s Original Cheese Pan Pizza, for example, had half the phthalate levels of a similar pizza from Little Caesars. Levels varied even among products from the same brand: Chef Boyardee Big Bowl Beefaroni pasta in meat sauce had less than half the level of the company’s Beefaroni pasta in tomato and meat sauce.
“That tells us that, as widespread as these chemicals are, there are ways to reduce how much is in our foods,” says James E. Rogers, PhD, who oversees product safety testing at CR. Read more about how CR tested foods for phthalates and bisphenols (PDF).
The trouble is, there are so many ways these chemicals enter our food.
Early efforts to limit exposure to them focused on packaging, but it’s now clear that phthalates in particular can also get in from the plastic in the tubing, conveyor belts, and gloves used during food processing, and can even enter directly into meat and produce via contaminated water and soil.
There are few regulations restricting the use of these chemicals in food production, or requiring that manufacturers test foods for them. But our guide can help you learn how plasticizers get into your food, how to reduce your exposure, and how key changes by industry and regulators could make our food safer.
In This Article
The Problem With Plastic Chemicals • High Risks Even at Low Levels • What Our Tests Found • Making Food Safer
The Problem With Plastic Chemicals
Bisphenols and phthalates in our food are concerning for several reasons.
To start, growing research shows that they are endocrine disruptors, which means that they can interfere with the production and regulation of estrogen and other hormones. Even minor disruptions in hormone levels can contribute to an increased risk of several health problems, including diabetes, obesity, cardiovascular disease, certain cancers, birth defects, premature birth, neurodevelopmental disorders, and infertility.
Those problems typically develop slowly, sometimes over decades, says Philip Landrigan, MD, a pediatrician and the director of the Program for Global Public Health and the Common Good at Boston College. “Unlike a plane crash, where everyone dies at once, the people who die from these die over many years.”
Another concern is that with plastic so ubiquitous in food and elsewhere, the chemicals can’t be completely avoided. And though the human body is pretty good at eliminating bisphenols and phthalates from our systems, our constant exposure to them means that they enter our blood and tissue almost as quickly as they’re eliminated. And plasticizers in particular can easily leach out of plastic and other materials. In addition, the chemicals’ harmful effects may be cumulative, so steady exposure to even very small amounts over time could increase health risks.
All that makes it difficult to trace any particular bad health outcome—say, a heart attack or breast cancer—to the chemicals. And it makes it hard for regulators to set a limit for what is considered safe for any food. “As a first step, the key is to determine how widespread the chemicals are in our food supply,” Rogers says. “Then we can develop strategies, as a society and individually, to limit our exposure.”
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