Switching to food packaged in materials with less plastic led to measurable decreases in two specific phthalate chemicals in the urine of healthy adults after seven days, suggesting that food...
Mechanism
Synthesis from 1 study
When food touches plastic, tiny chemicals can get into it. When you eat that food, your body absorbs those chemicals, and they end up in your urine. Switching to food that doesn’t touch plastic means fewer of these chemicals enter your body, so less shows up in your urine within just a few days.
Most probable mechanism
When food is packaged or prepared with plastic, chemicals from the plastic can get into the food. When a person eats that food, these chemicals are absorbed through the gut into the bloodstream. The liver processes them slightly, but most stay unchanged and are filtered out by the kidneys, then passed out in urine. Switching to food that doesn’t touch plastic means fewer of these chemicals enter the body, so less shows up in urine.
Phthalate compounds migrate from plastic packaging into food during storage, preparation, or heating.
Ingested phthalates are absorbed across the intestinal epithelium into the portal circulation.
Phthalates circulate in the bloodstream largely unmetabolized and are filtered by the glomeruli in the kidneys.
Filtered phthalates are excreted in urine without significant reabsorption or biotransformation.
Evidence from Studies
Supporting (1)
Community contributions welcome
Low-plastic diet and urinary levels of plastic-associated phthalates and bisphenols: the randomized controlled PERTH Trial
Contradicting (0)
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Gold Standard Evidence Needed
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