Research from the Universitat Autònoma de Barcelona suggested that tea leaf-filled pouches are steeped in microplastics, which are released into our bodies as we drink.
“The potential health implications of environmental micro/nanoplastics (MNPLs) are increasingly concerning,” the Spanish researchers said.
“Beyond environmental exposure, other sources such as food packaging, including herbal teabags, may also be significant.”
“You’ve made your last cup of tea in this house.”
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The study was published in the journal Chemosphere.
During their experiments, the team found that most of these microplastics are taken up by the mucus-producing intestinal cells.
However, they found that some can even enter the cell nucleus – the part of the cell that houses genetic material.
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“It is critical to develop standardised test methods to assess micro/nanoplastics (MNPLs) contamination released from plastic food contact materials and to formulate regulatory policies to effectively mitigate and minimise this contamination,” researchers said.
“As the use of plastic in food packaging continues to increase, it is vital to address MNPLs contamination to ensure food safety and protect public health.
“Overall, our findings contribute to a growing body of evidence on the pervasive nature of plastic pollution and its potential implications for human health.”
The British Heart Foundation verdict
Previously, the BHF addressed several reports suggesting tea had been proven to increase heart health and decrease the chances of a stroke.
However, they questioned the reports.
They said: “If you enjoy drinking tea, try not to add sugar, or use a low-fat milk if you’re having several cups a day.
“This is because eating too much sugar and saturated fat can lead to weight gain and increased cholesterol levels, which increases your risk of heart and circulatory conditions including heart attack and stroke.”