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Plastic Wraps Used to Package Food Can Release Thousands of Dangerous Chemicals, Including Compounds That Affect Hormones, Metabolism, and Increase the Risk of Diseases Such as Diabetes and Cardiovascular Issues
A piece of plastic wrap used to package food can contain up to 9,936 different chemicals. This number is alarming, especially because many of these substances can migrate into food and consequently into the human body.
Exposure occurs simply: just heat the food in the microwave or leave a container in a hot car. Heat, food fats, sunlight, and even time favor the transfer of chemical compounds from the plastic to the food.
Dangerous Substances in Daily Life
Among the components present in food plastics are bisphenol A (BPA) and phthalates. Both are known to affect the endocrine system, meaning they can interfere with the body’s hormonal regulation.
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Furthermore, researchers have identified thousands of unregulated, or even unknown, compounds that are also present in common packaging.
The plastic manufacturing process involves basic polymers, but these are mixed with colorants, plasticizers, heat stabilizers, and other substances.
During production and use, residues, impurities, and by-products also appear. Since these substances are not stably bound to the materials, they easily detach.
Items like bags, trays, and plastic bottles are the most common among products that pose risks. And the problem goes beyond direct exposure: these compounds can alter cellular functioning.
Effects on Human Cells and Metabolism
A study conducted by the Department of Biology at the Norwegian University of Science and Technology (NTNU) evaluated 36 products used daily in countries like the United States, Germany, the United Kingdom, South Korea, and Norway.
Scientists used high-resolution mass spectrometry and detected thousands of compounds.
Among the findings, many affected hormonal function and cellular metabolism. The results align with population studies showing the presence of BPA and phthalates in over 90% of people in Europe, Asia, and North America.
Additionally, the chemical mixtures present in plastics alter the activity of cellular receptors linked to the G11 protein. These receptors are essential in cell signaling and affect processes such as growth, reproduction, and energy consumption.
Consequences of Substances for Global Health
Continuous exposure to phthalates has been associated with around 350,000 deaths from cardiovascular diseases in 2018. The effects also extend to obesity, hypertension, and diabetes.
And it’s not just BPA that poses risks. Substitutes like bisphenol S (BPS) and bisphenol F (BPF) have been shown to cause similar harm.
Products with the “BPA-free” label do not guarantee safety. Alternative compounds also negatively impact cellular health.
Change at the Source of the Problem
Experts advocate for a structural transformation. With more than 13,000 known plastic chemical products and many still unidentified, controlling these substances one by one is not a viable solution.
The proposal is to redesign plastics from their origin. This includes developing new plant-based materials, biodegradable and offering the same functions — such as blocking oxygen and moisture — without the associated risks.
Plant-based polymers are already in testing phases. They can efficiently preserve food and degrade quickly in the environment.
Global Pressure and Regulatory Advances
In 2024, 175 countries gathered in Ottawa to negotiate a UN treaty against plastic pollution. The agreement is still under discussion, but the expectation is that it will be finalized by 2026.
In the meantime, some governments have already taken action. The European Chemicals Agency has classified several plasticizers as concerning. And several states in the U.S. have banned the use of BPA in packaging that comes into contact with food.
Industries are also preparing for future demands. Some maintain public records of plastic additives used.
What Every Person Can Do
Even without immediate legal changes, some actions help reduce exposure. Experts suggest avoiding the use of plastic in the microwave, opting for fresh foods, not using scratched cookware, and ventilating spaces with new furniture or plastics.
These simple practices reduce contact with toxic substances, as exposure is cumulative. Every small choice matters.
New materials made with green chemistry are also emerging. Using renewable sources like corn starch, cellulose, and algae, these bioplastics can break down in a few weeks and leave no pollutants. The future of plastics depends on these changes — and they have already begun.
With information from EcoInventos.
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