Studies of Seoul National University in South Korea show that eat or drink directly from cans or plastic bottles and other plastic packaging materials, has a negative effect on your blood pressure. This is because in plastic bottles, as well as in the interior of cans which are used in the food industry, is a chemical substance that affects blood pressure irrevocably negative. It is about the substance bisphenol A, commonly abbreviated as BPA. Chronic exposure to BPA is also a long time associated with heart disease, cancer and other health problems, and previous research has pointed to a link between contact with BPA and adverse health outcomes such as obesity.
Many people drink and eat food from cans and plastic bottles or other containers, but this may affect your health. A study from 2014van Seoul National University in South Korea reports that cans and bottles and other wrappings of food and beverages which are coated with a chemical called bisphenol A, may lead to increased blood pressure.
BPA is used in the lining of soda cans and it is also present in plastic bottles, cans and dental fillings. According to the scientists to exposure to the chemical BPA has been observed in more than 95% of the American population. The research is published in the American scientific journal Hypertension.
There is also evidence that BPA in food can fall from the lining of food cans. A previous randomized cross-over study showed that eating canned soup for five days gave increased urinary BPA concentrations greater than 1.000%, compared with eating soup made from fresh ingredients.
"An increase of 5 mmHg in systolic blood pressure by drinking two drinks from a can may cause clinically significant problems, especially in patients with cardiovascular disease or high blood pressure," said study leader Dr. Yun-Chul Hong Seoul National University College of Medicine in South Korea. "A 20 mm Hg increase in systolic blood pressure doubles the risk of developing cardiovascular disease."
Dr. Hong and dr. Sanghyuk Bae conducted a randomized cross-over study, in which participants had to drink soy milk in cans or glass bottles. A total of 60 participants, all over 60 years old, were recruited at a local community center. The participants visited the trial site three times, and each time they were randomly soymilk or two glass bottles, two cans or a combination of both. After two hours, the participants blood pressure, heart rate variability and the concentration of BPA measured in urine. Participants were asked to nothing to eat or drink during the first two hours hours after drinking soy milk, and for at least eight hours for each test. The researchers chose soy milk for the research because this far as we know does not contain substances that increase blood pressure.
The urine-BPA concentration of the participants increased to 1,600% as a result of the consumption of canned soy milk, in comparison with the consumption of soy milk in glass vials. The systolic blood pressure increased by about 4.5 mmHg after the consumption of two canned drinks, with respect to the consumption of two beverages in glass vials. No statistically significant differences were observed in the heart rate variability.
This study thus shows that one can seep through the chemical BPA in packaging in your drinks and make sure that your blood pressure rises significantly within a few hours.
For many people include a daily can of soda or bottle of water to their regular diet. Dr. Hong, however, recommends avoiding exposure to BPA where possible. "I advise consumers to fresh foods or foods to eat from glass bottles or jars and drinking instead of eating or drinking canned." Now, a short increase in blood pressure are not particularly harmful, but people who regularly and several times a day in cans or plastic bottles of drinks must still watch according to researcher Hong. He says that: "Certainly patients already suffer from high blood pressure or heart disease should be well aware of this risk." He hopes that manufacturers will develop healthier alternatives to the 'inner' of cans and bottles.
The Korean research team will weather permitting their research on the effects of BPA soon expand on a large scale.
You can avoid BPA exposure by:
food and drink out of glasses to take jars and bottles instead of canned or plastic;
only to purchase food in BPA-free canned;
To keep your food waste in glass containers or pots instead of plastic cups;
nothing to warm up in plastic containers;
for BPA-free baby bottles and teats, use plates and bowls.
Never fill your cup or bottle with water from a water cooler;
not to use plastic bottles and to use all of these not entirely for the second time, but use, for example, a stainless steel cup;
to use only BPA-free plastic, in case glass is impractical.
The health effects of BPA at a glance
BPA has both women and men adverse health effects. For example, BPA is inter alia associated with:
heart and vascular disease ;
Polycystic ovary syndrome;
sperm abnormalities; and
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