http___www.tportal.hr_lifestyle_zdravlje_177219_Znanstvenici-otkrili-od-cega-se-debljamo.html_1.xml
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(January 2015) Bisphenol A (BPA) is a chemical used in the lining of some food and beverage packaging to protect food from contamination and extend shelf life. It’s also used in non-food products. Small amounts of BPA can migrate into food and beverages from containers. BPA research Some studies have raised potential concerns that BPA exposure may cause health problems. However the overwhelming weight of scientific opinion is that there is no health or safety issue at the levels people are exposed to. Food safety authorities around the world have studied BPA and its reported effects. In November 2014, the US Food and Drug Administration (FDA) announced the results of its most recent review of BPA, stating that it considered BPA to be safe at the levels people are exposed to. FDA experts specialising in toxicology, analytical chemistry, endocrinology, epidemiology, and other fields reviewed more than 300 studies as part of the review. Read the summary of the US FDA’s current perspective on BPA. In January 2015, the European Food Safety Authority (EFSA) released a report on the agency's comprehensive re-evaluation of BPA exposure and toxicity. EFSA's re-evaluation concluded that BPA poses no health risk to consumers of any age group (including unborn children, infants and adolescents) at current exposure levels. Read more about EFSA's report Health Canada released an updated assessment of BPA in 2012 and also concluded that there were no safety issues at the levels people are exposed to. FSANZ continues to monitor all research on BPA and has prepared responses to some studies. View FSANZ’s responses. What’s the Tolerable Daily Intake? The tolerable daily intake (or TDI) is an internationally established safe level for chemicals like BPA. It’s a conservative estimate of a safe level of BPA which applies to the whole population and estimates the amount of BPA in food that can be ingested daily over a lifetime without appreciable health risk. In other words it’s the amount that can be safely consumed per day, every day. Extremely large amounts of foods and beverages would need to be consumed to reach the TDI for BPA. For example, a nine month old baby weighing 9 kg would have to eat more than 1 kg of canned baby custard containing BPA every day to reach the TDI, assuming that the custard contained the highest level of BPA found (420 parts per billion) in a survey by CHOICE. What is Australia doing about BPA? In 2010, the Australian Government announced a voluntary phase out of BPA use in polycarbonate baby bottles. Read more What are other countries doing? Because of consumer concerns, some countries and some states in the US have taken action on BPA. Canada, the European Union, and selected US States/Counties have phased-out the use of BPA in some products; however the phase-outs are not supported by the risk assessment conclusions on the safety of BPA.
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Kemikalija koja se koristi u plastičnim posudama za hranu dosad je bila povezana s rakom i označena kao otrovna tvar u Kanadi, a sada je znanstvenici povezuju s debljanjem i dijabetesom, piše Huffington Post. Nedavno objavljena španjolska studija tvrdi da i male doze te kemikalije mogu potaknuti reakciju u tijelu koji dovodi do neravnoteže hormona Izvješće je objavljeno prošlog tjedna u časopisu PLoS ONE i pokazuje da kemijski spoj bisfenol A (BPA) , koji se koristi posvuda, od gnojiva do plastičnih boce s vodom, može usmjeriti tijelo da stvara više masnoće te se tvrdi da može dovesti i do povećane proizvodnje inzulina kojim tijelo regulira masnoće i ugljikohidrate. Ako proizvodi previše inzulina, tijelo može postati imuno na vlastite efekte što za posljedicu ima debljanje i dijabetes tipa 2. Angel Nadal, koji proučava BPA na španjolskom Sveučilištu Miguel Hernendez kaže da kada konzumiramo hranu iz plastike koja sadrži BPA, kažemo zapravo svojim organima da jedemo više nego što stvarno jedemo. Njegova istraživanja pokazuju da BPA utječe na gušteraču , organ koji stvara inzulin. Mala količina te kemikalije može potaknuti otpuštanje gotovo dvostruko veće količine inzulina koja je potrebna za razgradnju hrane. Tim dr. Nadala otkrio je da je četvrtina milijarditog dijela grama BPA dovoljna za početak ovakve reakcije. Istraživanja širom svijeta procjenjuju da 90 posto ljudi u razvijenim zemljama imaju u krvi visoku razinu BPA te da nije dovoljno samo prestati piti vodu iz plastičnih boca i ambalaže da biste se riješili te opasne kemikalije. Nadal kaže da se BPA koristi u svakodnevnim proizvodima kao što su računi u trgovinama i toaletni papir te da BPA može biti štetan za trudnice i njihovu nerođenu djecu 'Fetus nije samo izložen utjecaju BPA, nego i višim razinama inzulina koju luči majka, a takvo okruženje fetusu donosi više štete nego koristi.' Bisfenol A (BPA) organski je spoj koji se koristi u širokom spektru uglavnom plastičnih proizvoda. Iako su mnoge studije pokazale da negativno utječe na zdravlje, Svjetska zdravstvena organizacija nije ograničila ni zabranila korištenje te kemikalije u industriji, ali su Europska unija i Kanada zabranile njegovu uporabu u bočicama za bebe. Godine 2010., Kanada je postala prva zemlja koja proglasila BPA toksičnom tvari. Različite studije povezale su BPA s rakom prostate i dojke.