This article has been reviewed according to Science X's editorial process and policies. Editors have highlighted the following attributes while ensuring the content's credibility: Packaged food usually sits in plastic-lined bags designed to keep air, moisture and contaminants out. That same protection can also increase the chances of chemicals from the packaging seeping into the food.
When a chemical raises health concerns, industries often swap it for a molecular cousin, a substitution that may either be genuinely safer or simply be too understudied to know whether it is harmful. With thousands of chemicals in use, one-by-one regulation can't keep pace, so untested replacements can slide through unchecked. In a recent study published in Environmental Science & Technology, researchers identified 15,159 chemicals known to come into contact with food, either intentionally used in manufacturing or found migrating from packaging.
They matched these chemicals against official regulatory safety data to identify those linked to serious health effects, including cancer, reproductive harm and hormone disruption. They identified 1,222 chemicals used in food packaging that regulators have reviewed and found to pose serious risks to human health. More than 4,000 chemicals were classified in hazardous priority groups, and 70% of these closely related chemicals lacked adequate safety data, increasing the risk that they could be introduced as regrettable substitutions.
Chemicals from packaging, processing equipment and other food-contact materials can end up in the food we eat. Currently, at least 2,160 food-contact chemicals (FCCs) are known to migrate into food, and some, including certain bisphenols and ortho-phthalates, are already regulated in some parts of the world because of concerns about their health risks. Regulation often pushes manufacturers to replace one chemical with a near-identical alternative.
BPA, for example, has been replaced with BPS, but because the two chemicals are structurally similar, BPS may carry many of the same toxic effects. This creates a dangerous loophole where a chemical is restricted on paper, but the health risk may simply be replaced rather than removed. Evaluating chemicals one by one could take ages, since the number of potentially harmful chemicals is in the thousands.
So, one smart option is to group similar chemicals, which would help flag them as substances that can be avoided or regulated. The grouping process began with the researchers collecting information from two major databases: one tracking intentionally used manufacturing ingredients (FCCdb) and another tracking chemicals actually detected in packaging test extracts (FCCmigex). After filtering, researchers narrowed it to a master list of 15,159 chemicals.
Extract — continue reading at the source.
