Plastic Takeout Containers Linked to Increased Risk of Congestive Heart Failure

A new study by Chinese scientists shows that regular consumption of food from plastic takeout containers may significantly increase the risk of developing congestive heart failure. The researchers suggest that this may be due to changes in the composition of the gut microbiota, which trigger inflammatory processes and harm the cardiovascular system. The study used a two-stage approach. First, the researchers examined how frequently more than 3,000 Chinese residents consumed food from plastic takeout containers and whether they had heart disease. Then, in an experiment, rats were given water that had been boiled and poured into such containers—a process during which chemicals are released from the plastic. The results showed that frequent consumption of food from plastic is associated with an increased risk of congestive heart failure. Plastic contains up to 20,000 different chemicals, many of which—such as BPA, phthalates, and PFAS—can negatively affect health. These substances are often found in food packaging and have been linked to various issues ranging from cancer to reproductive system disorders. Although the researchers did not pinpoint the specific chemicals leaching from the plastic, they highlighted the connection between common plastic components, heart diseases, and the previously established relationship between the composition of the gut microbiota and heart health. To simulate everyday conditions, the scientists poured boiling water into the containers for 1, 5, and 15 minutes—since chemicals are released much more intensively when in contact with hot liquids. According to previous studies, microwaveable plastic containers can release up to 4.2 million micro-particles per square centimeter. During the experiment, the rats were given water containing the leached chemicals for several months. Subsequent analysis showed that the composition of their gut microflora and metabolites had changed: signs of increased inflammatory processes and oxidative stress were observed, which ultimately led to damage to the heart muscle. However, no statistically significant differences were found between the effects of water that had been in contact with the plastic for varying lengths of time. Although the study does not offer specific recommendations, public health experts advise against reheating food in plastic containers or placing hot dishes in them. The best solution is to replace plastic with alternatives made of glass, wood, or stainless steel. When ordering takeout, you might transfer the food to your own glass containers at home or bring your own packaging.