{"id":120961,"date":"2015-04-22T23:33:00","date_gmt":"2015-04-22T23:33:00","guid":{"rendered":"https:\/\/bm.dev.synology.me\/?p=120961"},"modified":"2015-04-22T23:33:00","modified_gmt":"2015-04-22T23:33:00","slug":"studiu-suplimentele-alimentare-cu-multivitamine-cresc-riscul-de-cancer","status":"publish","type":"post","link":"https:\/\/bm.dev.synology.me\/?p=120961","title":{"rendered":"STUDIU: Suplimentele alimentare cu multivitamine cresc riscul de cancer"},"content":{"rendered":"<p>\n&#8220;Nu \u015ftim exact de ce se \u00eent\u00e2mpl\u0103 acest lucru la nivel molecular, dar dovezile arat\u0103 c\u0103 persoanele care iau suplimente alimentare \u00een exces tind s\u0103 fie mai predispuse la a se \u00eemboln\u0103vi de cancer&#8221;, a declarat cercet\u0103torul Tim Byers, de la Centrul Oncologic al Universit\u0103\u0163ii din Colorado, Statele Unite ale Americii.<\/p>\n<p>\n<strong>Cercet\u0103rile pe aceast\u0103 tem\u0103 au fost declan\u015fate \u00een urm\u0103 cu circa 20 de ani, c\u00e2nd savan\u0163ii au \u00eenceput s\u0103 observe c\u0103 persoanele care consum\u0103 multe fructe \u015fi legume tind s\u0103 aib\u0103 o predispozi\u0163ie mai sc\u0103zut\u0103 la a se \u00eemboln\u0103vi de cancer. <\/strong>Din moment ce suplimentele nutri\u0163ionale sunt bogate \u00een vitamine \u015fi compu\u015fi din aceste alimente, oamenii de \u015ftiin\u0163\u0103 s-au \u00eentrebat dac\u0103 nu cumva administrarea acestora ar putea ajuta la reducerea \u015fi mai accentuat\u0103 a riscului de \u00eemboln\u0103vire de cancer, astfel c\u0103 savan\u0163ii au \u00eenceput s\u0103 experimenteze pentru a vedea dac\u0103 ipoteza este adev\u0103rat\u0103.<\/p>\n<p>\nIni\u0163ial \u015fi \u00een mod \u00eencurajator, rezultatele ob\u0163inute \u00een urma testelor pe \u0163esuturi \u015fi pe animale de laborator au sus\u0163inut aceast\u0103 ipotez\u0103, astfel \u00eenc\u00e2t oamenii de \u015ftiin\u0163\u0103 au demarat studii pe oameni, a\u015ftept\u00e2ndu-se s\u0103 observe o tendin\u0163\u0103 similar\u0103 de reducere a riscului de cancer. Dar, dup\u0103 ce au urm\u0103rit mii de voluntari, spre surprinderea savan\u0163ilor, au descoperit c\u0103 tendin\u0163a era de cre\u015ftere a riscului de cancer. Suplimentele nutri\u0163ionale nu numai c\u0103 nu au adus beneficii din punct de vedere al s\u0103n\u0103t\u0103\u0163ii, ci unele chiar au ridicat riscul de apari\u0163ie a cancerului atunci c\u00e2nd subiec\u0163ii studiului au dep\u0103\u015fit cu mult doza reomandat\u0103.<\/p>\n<p>\nDe exemplu, potrivit unui studiu din 2006, suplimentele cu acid folic duc la o cre\u015ftere cu 20% a riscului de cancer mamar. Mai mult, femeile care includeau cel mai mare nivel de acid folic \u00een alimenta\u0163ie, \u00een principal prin intermediul suplimentelor nutri\u0163ionale, aveau un risc cu 32% mai mare de a dezvolta cancer mamar, comparativ cu femeile care consumau foarte pu\u0163in acid folic. De asemenea, acidul folic este considerat responsabil, potrivit altor studii, de cre\u015fterea num\u0103rului de polipi din colon. De\u015fi \u00een mare parte ace\u015fti polipi nu pun probleme de s\u0103n\u0103tate, unii dintre ei pot deveni cancero\u015fi.<\/p>\n<p>\n<strong>\u00cen cazul b\u0103rba\u0163ilor, mai multe studii au ar\u0103tat c\u0103 suplimentele cu vitamina E sunt asociate unui risc crescut de cancer, iar o cercetare a ar\u0103tat c\u0103 poate dubla riscul de cancer de prostat\u0103.<\/strong><\/p>\n<p>\nFemeile care luau suplimente nutri\u0163ionale bogate \u00een vitamina E prezentau un risc cu 20% la sut\u0103 mai mare de a suferi de cancer mamar, comparativ cu cele care nu luau suplimente.<\/p>\n<p>\n&#8220;Acest lucru nu \u00eenseamn\u0103 c\u0103 oamenilor trebuie s\u0103 le fie team\u0103 s\u0103 ia vitamine \u015fi minerale. Dac\u0103 sunt administrate \u00een doze corecte, multivitaminele sunt bune pentru organism&#8221;, a spus Tim Byers.<\/p>\n<p>\n\u00cen aceste condi\u0163ii, cei mai mul\u0163i oameni ar trebui s\u0103 poat\u0103 s\u0103 ating\u0103 dozele zilnice recomandate de vitamine \u015fi minerale adopt\u00e2nd o diet\u0103 s\u0103n\u0103toas\u0103. Astfel, oamenii nu au nevoie s\u0103 ia pastile zilnic \u015fi ar trebui s\u0103 \u00eenceteze s\u0103 mai cheltuiasc\u0103 banii pe aceste suplimente.<\/p>\n<p>\n&#8220;\u00cen cele din urm\u0103, am descoperit c\u0103 administrarea de extra vitamine \u015fi minerale face mai mult r\u0103u dec\u00e2t bine&#8221;, a mai spus Byers.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Un studiu bazat pe analizarea rezultatelor unor cercet\u0103ri realizate pe o perioad\u0103 de peste dou\u0103 decenii arat\u0103 c\u0103 suplimentele cu vitamine cresc mai degrab\u0103 riscul de \u00eemboln\u0103vire de cancer dec\u00e2t s\u0103 \u00eel scad\u0103, a\u015fa cum s-a crezut mult timp, potrivit iflscience.com.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[510],"tags":[14610,40290,10937],"class_list":["post-120961","post","type-post","status-publish","format-standard","hentry","category-actualitate","tag-cancer","tag-multivitamine","tag-suplimente"],"_links":{"self":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/120961","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=120961"}],"version-history":[{"count":0,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=\/wp\/v2\/posts\/120961\/revisions"}],"wp:attachment":[{"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=120961"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=120961"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/bm.dev.synology.me\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=120961"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}