{"id":77475,"date":"2025-04-28T00:27:27","date_gmt":"2025-04-27T22:27:27","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=77475"},"modified":"2025-04-27T15:13:55","modified_gmt":"2025-04-27T13:13:55","slug":"denni-konzumace-slazenych-napoju-az-5nasobne-zvysuje-riziko-rakoviny-ustni-dutiny","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2025\/04\/28\/denni-konzumace-slazenych-napoju-az-5nasobne-zvysuje-riziko-rakoviny-ustni-dutiny\/","title":{"rendered":"Denn\u00ed konzumace slazen\u00fdch n\u00e1poj\u016f a\u017e 5n\u00e1sobn\u011b zvy\u0161uje riziko rakoviny \u00fastn\u00ed dutiny"},"content":{"rendered":"
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Podle pr\u016flomov\u00e9 studie publikovan\u00e9 v odborn\u00e9m medic\u00ednsk\u00e9m \u010dasopise\u00a0JAMA Otolaryngology \u2013 Head & Neck Surgery<\/em>\u00a0mohou miliony lid\u00ed, kte\u0159\u00ed denn\u011b pop\u00edjej\u00ed slazen\u00e9 limon\u00e1dy, nev\u011bdomky v tichosti podn\u011bcovat riziko vzniku rakoviny.<\/strong><\/p>\n

V\u00fdzkum trvaj\u00edc\u00ed 30 let analyzoval \u00fadaje od v\u00edce ne\u017e 162 000 \u017een a zjistil, \u017ee ty \u017eeny, kter\u00e9 denn\u011b pily jeden nebo v\u00edce sladk\u00fdch n\u00e1poj\u016f, \u010delily a\u017e 4,87kr\u00e1t vy\u0161\u0161\u00edmu riziku rakoviny dutiny \u00fastn\u00ed ve srovn\u00e1n\u00ed se vz\u00e1cn\u00fdmi konzumenty t\u011bchto n\u00e1poj\u016f.<\/span><\/p>\n

Je\u0161t\u011b alarmuj\u00edc\u00ed je, \u017ee i neku\u0159\u00e1ci a abstinenti zaznamenali je\u0161t\u011b v\u011bt\u0161\u00ed 5,46n\u00e1sobn\u00fd n\u00e1r\u016fst rizika, co\u017e nazna\u010duje, \u017ee samotn\u00e9 slazen\u00e9 n\u00e1poje mohou b\u00fdt nebezpe\u010dn\u00fdm a dosud p\u0159ehl\u00ed\u017een\u00fdm karcinogenem.<\/span><\/p>\n

Po cel\u00e1 desetilet\u00ed byly tab\u00e1k a alkohol pova\u017eov\u00e1ny za prim\u00e1rn\u00ed hnac\u00ed s\u00edly rakoviny \u00fastn\u00ed dutiny. Tato nov\u00e1 studie vych\u00e1zej\u00edc\u00ed z p\u0159ede\u0161l\u00e9 presti\u017en\u00ed studie\u00a0<\/span>Nurses‘ Health<\/span><\/em>\u00a0Study odhalila dal\u0161\u00ed modern\u00ed stravovac\u00ed nebezpe\u010d\u00ed: n\u00e1poje slazen\u00e9 cukrem.<\/span><\/p>\n

V\u00fdzkumn\u00edci zdokumentovali 124 p\u0159\u00edpad\u016f invazivn\u00ed rakoviny \u00fastn\u00ed dutiny po dobu t\u0159\u00ed desetilet\u00ed, p\u0159i\u010dem\u017e nejvy\u0161\u0161\u00ed v\u00fdskyt byl mezi denn\u00edmi konzumenty slazen\u00fdch n\u00e1poj\u016f.<\/span><\/p>\n

Zji\u0161t\u011bn\u00ed nazna\u010duj\u00ed, \u017ee n\u00e1vyk na slazen\u00e9 n\u00e1poje m\u016f\u017ee vysv\u011btlovat z\u00e1hadn\u00fd n\u00e1r\u016fst rakoviny \u00fastn\u00ed dutiny u \u017een s n\u00edzk\u00fdm rizikem \u2013 trend, kter\u00fd se vymyk\u00e1 tradi\u010dn\u00edmu l\u00e9ka\u0159sk\u00e9mu ch\u00e1p\u00e1n\u00ed.<\/span><\/p>\n

(Souvisej\u00edc\u00ed: Dv\u011b studie\u00a0<\/span>odhaluj\u00ed<\/span><\/a>\u00a0souvislost mezi spot\u0159ebou cukru a rakovinou.)<\/span><\/p>\n

Studie nezd\u016fraz\u0148uje jen korelaci, ale identifikuje i biologick\u00e9 mechanismy spojuj\u00edc\u00ed slazen\u00e9 n\u00e1poje s rakovinou. Kuku\u0159i\u010dn\u00fd sirup s vysok\u00fdm obsahem frukt\u00f3zy, dominantn\u00ed sladidlo v p\u0159islazovan\u00fdch n\u00e1poj\u00edch, spou\u0161t\u00ed\u00a0<\/span>chronick\u00fd z\u00e1n\u011bt<\/span><\/a>\u00a0a po\u0161kozen\u00ed voln\u00fdmi radik\u00e1ly, kter\u00e9 mohou zmutovat DNA ve tk\u00e1n\u00edch dutiny \u00fastn\u00ed.<\/span><\/p>\n

Studie odborn\u00e9ho \u010dasopisu\u00a0<\/span>International Journal of Cancer<\/span><\/em>\u00a0z roku 2019 zjistila, \u017ee cukr zvy\u0161uje hladinu inzul\u00ednu a inzul\u00ednu podobn\u00fdch r\u016fstov\u00fdch faktor\u016f, \u010d\u00edm\u017e vytv\u00e1\u0159\u00ed ide\u00e1ln\u00ed prost\u0159ed\u00ed pro n\u00e1dory.<\/span><\/p>\n

Mezit\u00edm kyselost n\u00e1poj\u016f sycen\u00fdch oxidem uhli\u010dit\u00fdm (s hladinami pH konkuruj\u00edc\u00edmi octa) naru\u0161uje ochrann\u00e9 tk\u00e1n\u011b \u00fast, \u010d\u00edm\u017e jsou bu\u0148ky n\u00e1chyln\u00e9 k malign\u00edm zm\u011bn\u00e1m.<\/span><\/p>\n

Sladk\u00e9, ale smrteln\u00e9: Dal\u0161\u00ed vin\u00edk epidemie rakoviny<\/span><\/h2>\n

Navzdory mno\u017e\u00edc\u00edm se d\u016fkaz\u016fm z\u016fst\u00e1vaj\u00ed slazen\u00e9 n\u00e1poje agresivn\u011b prod\u00e1v\u00e1ny jako ne\u0161kodn\u00e9 dobroty.<\/span><\/p>\n

Na rozd\u00edl od cigaret, kter\u00e9 obsahuj\u00ed explicitn\u00ed varov\u00e1n\u00ed, etikety slazen\u00fdch n\u00e1poj\u016f rizika rakoviny v\u016fbec nezmi\u0148uj\u00ed \u2013 toto opomenut\u00ed kritici p\u0159ipisuj\u00ed lobbov\u00e1n\u00ed potravin\u00e1\u0159sk\u00e9ho pr\u016fmyslu.<\/span><\/p>\n

N\u00e1pojov\u00ed giganti dlouho bagatelizovali obavy o zdrav\u00ed, i kdy\u017e v\u00fdzkum spojoval jejich produkty s obezitou, cukrovkou a rakovinou. Obh\u00e1jci ve\u0159ejn\u00e9ho zdrav\u00ed tvrd\u00ed, \u017ee regula\u010dn\u00ed org\u00e1ny jednaj\u00ed pomalu a vystavuj\u00ed spot\u0159ebitele ohro\u017een\u00ed jejich zdrav\u00ed.<\/span><\/p>\n

No a tady je nej\u0161okuj\u00edc\u00ed odhalen\u00ed studie:<\/span><\/p>\n

\u017deny, kter\u00e9 se vyh\u00fdbaly kou\u0159en\u00ed a alkoholu \u2013 tedy tradi\u010dn\u011b pova\u017eov\u00e1ny za \u201en\u00edzkorizikov\u00e9\u201c \u2013 \u010delily nejprud\u0161\u00edmu n\u00e1r\u016fstu rakoviny ze slazen\u00fdch n\u00e1poj\u016f.<\/span><\/strong><\/p>\n

To nazna\u010duje, \u017ee slazen\u00e9 n\u00e1poje mohou b\u00fdt pova\u017eov\u00e1ny za samostatn\u00fd karcinogen, ne jen zesilova\u010dem jin\u00fdch rizik.<\/span><\/p>\n

S celosv\u011btov\u011b rostouc\u00edm v\u00fdskytem rakoviny dutiny \u00fastn\u00ed, zejm\u00e9na mezi mlad\u0161\u00edmi dosp\u011bl\u00fdmi, odborn\u00edci varuj\u00ed, \u017ee stravovac\u00ed faktory jako ultrazpracovan\u00e9 cukry mohou v tichosti zp\u016fsobovat doslova epidemii.<\/span><\/p>\n

P\u0159esto\u017ee je pot\u0159ebn\u00fd dal\u0161\u00ed v\u00fdzkum, auto\u0159i studie p\u0159esto vyb\u00edzej\u00ed k okam\u017eit\u00e9 opatrnosti. Sn\u00ed\u017een\u00ed denn\u00edho p\u0159\u00edjmu slazen\u00fdch n\u00e1poj\u016f, up\u0159ednostn\u011bn\u00ed \u010dist\u00e9 vody nebo neslazen\u00e9ho \u010daje a zv\u00fd\u0161en\u00ed p\u0159\u00edjmu potravin bohat\u00fdch na antioxidanty (jako jsou bobule a listov\u00e1 zelenina) m\u016f\u017ee sn\u00ed\u017eit riziko rakoviny.<\/span><\/p>\n

Zubn\u00ed vy\u0161et\u0159en\u00ed jsou tak\u00e9 kritick\u00e1, proto\u017ee \u010dasn\u00e9 st\u00e1dium rakoviny \u00fastn\u00ed dutiny \u010dasto z\u016fst\u00e1v\u00e1 nepov\u0161imnuto a zuba\u0159i si ho obvykle v\u0161imnou jako prvn\u00ed.<\/span><\/p>\n

Zast\u00e1nci p\u0159irozen\u00e9ho zdrav\u00ed tak\u00e9 po\u017eaduj\u00ed, aby se na slazen\u00fdch n\u00e1poj\u00edch um\u00edstily varovn\u00e9 \u0161t\u00edtky \u2013 jde v\u0161ak o opat\u0159en\u00ed, kter\u00e9mu se potravin\u00e1\u0159sk\u00fd pr\u016fmysl tvrd\u011b br\u00e1n\u00ed.<\/span><\/p>\n

Z\u00e1v\u011br<\/span><\/h2>\n

Tato pr\u016flomov\u00e1 studie bour\u00e1 m\u00fdtus, \u017ee slazen\u00e9 n\u00e1poje jsou jen nevinn\u00fdm pot\u011b\u0161en\u00edm. Denn\u00ed konzumace t\u011bchto n\u00e1poj\u016f s sebou nese riziko rakoviny srovnateln\u00e9 s kou\u0159en\u00edm.<\/span><\/p>\n

V\u011bda \u0159\u00edk\u00e1 jasn\u011b: Dal\u0161\u00edm miln\u00edkem ve v\u00e1lce proti rakovin\u011b je sn\u00ed\u017een\u00ed p\u0159\u00edjmu cukru.<\/span><\/p>\n

Prohl\u00e9dn\u011bte si\u00a0<\/span>video<\/span><\/a>\u00a0(v angli\u010dtin\u011b), ve kter\u00e9m Jefferey Jaxen a Del Bigtree diskutuj\u00ed o tom, jak konzumace cukru od ran\u00e9ho v\u011bku vede k chronick\u00fdm onemocn\u011bn\u00edm:<\/span><\/p>\n