{"id":110259,"date":"2026-07-08T00:17:46","date_gmt":"2026-07-07T22:17:46","guid":{"rendered":"https:\/\/www.infokuryr.cz\/n\/?p=110259"},"modified":"2026-07-06T16:42:29","modified_gmt":"2026-07-06T14:42:29","slug":"vedci-zkoumali-ucinky-cerveneho-melounu-na-rakovinu-hmotnost-a-krevni-tlak-co-zjistili","status":"publish","type":"post","link":"https:\/\/www.infokuryr.cz\/n\/2026\/07\/08\/vedci-zkoumali-ucinky-cerveneho-melounu-na-rakovinu-hmotnost-a-krevni-tlak-co-zjistili\/","title":{"rendered":"V\u011bdci zkoumali \u00fa\u010dinky \u010derven\u00e9ho melounu na rakovinu, hmotnost a krevn\u00ed tlak. Co zjistili?"},"content":{"rendered":"
<\/div>\n

\u010cerven\u00fd meloun pat\u0159\u00ed mezi symboly l\u00e9ta, ale nen\u00ed jen osv\u011b\u017euj\u00edc\u00edm ovocem. D\u00edky vysok\u00e9mu obsahu vody, vitam\u00edn\u016f a antioxidant\u016f se ji\u017e l\u00e9ta nach\u00e1z\u00ed v centru pozornosti v\u011bdc\u016f.<\/span><\/strong><\/p>\n

Zkoumaj\u00ed zejm\u00e9na to, jestli jeho pravideln\u00e1 konzumace m\u016f\u017ee prosp\u00edvat srdci, pom\u00e1hat p\u0159i regulaci t\u011blesn\u00e9 hmotnosti nebo sni\u017eovat riziko n\u011bkter\u00fdch onemocn\u011bn\u00ed.<\/span><\/p>\n

Dosavadn\u00ed v\u00fdzkumy p\u0159inesly n\u011bkolik slibn\u00fdch zji\u0161t\u011bn\u00ed. P\u0159esto\u017ee zat\u00edm neprok\u00e1zaly, \u017ee by meloun s\u00e1m o sob\u011b l\u00e9\u010dil nemoci, nazna\u010duj\u00ed, \u017ee m\u016f\u017ee b\u00fdt hodnotnou sou\u010d\u00e1st\u00ed zdrav\u00e9 a pestr\u00e9 stravy.<\/span><\/p>\n

Meloun nap\u0159\u00edklad obsahuje v\u00edce lykopenu ne\u017e v\u011bt\u0161ina b\u011b\u017en\u011b konzumovan\u00e9ho ovoce a pr\u00e1v\u011b tato l\u00e1tka v posledn\u00edch letech p\u0159itahuje pozornost v\u011bdc\u016f.<\/span><\/p>\n

Pro\u010d je meloun tak v\u00fdjime\u010dn\u00fd?<\/span><\/strong><\/h2>\n

P\u0159ibli\u017en\u011b 92% \u010derven\u00e9ho melounu tvo\u0159\u00ed voda, proto v\u00fdborn\u011b osv\u011b\u017e\u00ed a pom\u00e1h\u00e1 dopl\u0148ovat tekutiny b\u011bhem hork\u00fdch dn\u00ed.<\/span><\/p>\n

Krom\u011b toho obsahuje vitam\u00edny A a C, drasl\u00edk, ho\u0159\u010d\u00edk a dal\u0161\u00ed \u017eiviny d\u016fle\u017eit\u00e9 pro spr\u00e1vn\u00e9 fungov\u00e1n\u00ed organismu. Je p\u0159itom p\u0159irozen\u011b n\u00edzkokalorick\u00fd, tak\u017ee p\u0159edstavuje vhodnou alternativu ke sladkostem nebo kalorick\u00fdm dezert\u016fm.<\/span><\/p>\n

P\u0159esto\u017ee meloun p\u0159isp\u00edv\u00e1 k hydrataci, odborn\u00edci upozor\u0148uj\u00ed, \u017ee oby\u010dejn\u00e1 voda z\u016fst\u00e1v\u00e1 nejspolehliv\u011bj\u0161\u00edm zp\u016fsobem dopl\u0148ov\u00e1n\u00ed tekutin.<\/span><\/p>\n

Lykopen \u2013 antioxidant, kter\u00fd zaujal v\u011bdce<\/span><\/strong><\/h2>\n

Jednou z nejzaj\u00edmav\u011bj\u0161\u00edch l\u00e1tek v \u010derven\u00e9m melounu je lykopen \u2013 p\u0159\u00edrodn\u00ed antioxidant zodpov\u011bdn\u00fd za jeho \u010derven\u00e9 zbarven\u00ed. Meloun pat\u0159\u00ed mezi jeho nejbohat\u0161\u00ed p\u0159irozen\u00e9 zdroje.<\/span><\/p>\n

Antioxidanty pom\u00e1haj\u00ed chr\u00e1nit bu\u0148ky p\u0159ed po\u0161kozen\u00edm voln\u00fdmi radik\u00e1ly, proto v\u011bdci zkoumaj\u00ed jejich mo\u017en\u00fd vliv na vznik \u0159ady chronick\u00fdch onemocn\u011bn\u00ed v\u010detn\u011b rakoviny.<\/span><\/p>\n

N\u011bkter\u00e9 studie nazna\u010dily, \u017ee vy\u0161\u0161\u00ed p\u0159\u00edjem lykopenu m\u016f\u017ee souviset s ni\u017e\u0161\u00edm rizikem rakoviny prostaty. Dosavadn\u00ed d\u016fkazy v\u0161ak nejsou kone\u010dn\u00e9, aby bylo mo\u017en\u00e9 hovo\u0159it o prok\u00e1zan\u00e9m ochrann\u00e9m \u00fa\u010dinku. Organismus vst\u0159eb\u00e1v\u00e1 lykopen l\u00e9pe za p\u0159\u00edtomnosti tuku, proto l\u017ei\u010dka olivov\u00e9ho oleje s melounem v\u00fdrazn\u011b pom\u016f\u017ee jeho absorpci.<\/span><\/p>\n

Podpora krevn\u00edho ob\u011bhu a krevn\u00edho tlaku<\/span><\/strong><\/h2>\n

\u010cerven\u00fd meloun obsahuje tak\u00e9 aminokyselinu L-citrulin, ze kter\u00e9 si t\u011blo vytv\u00e1\u0159\u00ed oxid dusnat\u00fd. Ten pom\u00e1h\u00e1 uvol\u0148ovat c\u00e9vy a podporuje zdrav\u00fd krevn\u00ed ob\u011bh. Pr\u00e1v\u011b proto v\u011bdci zkoumaj\u00ed, zda by meloun mohl p\u0159isp\u00edvat ke sni\u017eov\u00e1n\u00ed\u00a0<\/span>krevn\u00edho tlaku<\/span><\/a>\u00a0.<\/span><\/p>\n

N\u011bkter\u00e9 v\u00fdsledky jsou povzbudiv\u00e9, v\u011bt\u0161ina v\u00fdzkum\u016f v\u0161ak sledovala \u00fa\u010dinky koncentrovan\u00fdch dopl\u0148k\u016f v\u00fd\u017eivy s L-citrulinem nebo lykopenem, ne b\u011b\u017en\u00e9 konzumace melounu.<\/span><\/p>\n

Zat\u00edm proto nelze definitivn\u011b potvrdit, \u017ee samotn\u00fd meloun v\u00fdrazn\u011b sni\u017euje krevn\u00ed tlak.<\/span><\/p>\n

Cel\u00e9 ovoce je lep\u0161\u00ed volbou ne\u017e \u0161\u0165\u00e1va<\/span><\/strong><\/h2>\n

Men\u0161\u00ed klinick\u00e9 studie nazna\u010dily, \u017ee melounov\u00e1 \u0161\u0165\u00e1va m\u016f\u017ee p\u0159\u00edzniv\u011b ovlivnit n\u011bkter\u00e9 ukazatele zdrav\u00ed c\u00e9v. Jejich v\u00fdsledky v\u0161ak zat\u00edm nesta\u010d\u00ed na jednozna\u010dn\u00e1 doporu\u010den\u00ed.<\/span><\/p>\n

Odborn\u00edci proto up\u0159ednost\u0148uj\u00ed konzumaci cel\u00e9ho ovoce. Zachov\u00e1v\u00e1 si vl\u00e1kninu, l\u00e9pe zasyt\u00ed a zpomaluje vst\u0159eb\u00e1v\u00e1n\u00ed p\u0159irozen\u00fdch cukr\u016f.<\/span><\/p>\n

P\u0159i v\u00fdrob\u011b \u0161\u0165\u00e1vy se v\u011bt\u0161ina vl\u00e1kniny odstran\u00ed, tak\u017ee n\u00e1poj zasyt\u00ed m\u00e9n\u011b a cukry se vst\u0159eb\u00e1vaj\u00ed rychleji.<\/span><\/p>\n

M\u016f\u017ee pomoci i p\u0159i hubnut\u00ed?<\/span><\/strong><\/h2>\n

Zaj\u00edmav\u00e9 v\u00fdsledky p\u0159inesly i v\u00fdzkumy zam\u011b\u0159en\u00e9 na regulaci t\u011blesn\u00e9 hmotnosti.<\/span><\/p>\n

V jedn\u00e9 studii se lid\u00e9 po konzumaci melounu c\u00edtili d\u00e9le syt\u00ed a dos\u00e1hli m\u00edrn\u00e9ho sn\u00ed\u017een\u00ed t\u011blesn\u00e9 hmotnosti, indexu t\u011blesn\u00e9 hmotnosti i systolick\u00e9ho krevn\u00edho tlaku v porovn\u00e1n\u00ed s obdob\u00edm, kdy jedli kalori\u010dt\u011bj\u0161\u00ed ob\u010derstven\u00ed.<\/span><\/p>\n

Podobn\u00e9 v\u00fdsledky zaznamenala i pozd\u011bj\u0161\u00ed studie u d\u011bt\u00ed, ve kter\u00e9 meloun nahradil slazen\u00e9 n\u00e1poje.<\/span><\/p>\n

Tyto v\u00fdzkumy v\u0161ak sp\u00ed\u0161e nazna\u010duj\u00ed, \u017ee v\u00fdhodou melounu je jeho n\u00edzk\u00e1 energetick\u00e1 hodnota a schopnost nahradit kalori\u010dt\u011bj\u0161\u00ed potraviny, ne\u017e to, \u017ee by s\u00e1m o sob\u011b spaloval tuk nebo urychloval hubnut\u00ed.<\/span><\/p>\n

Kdo by si m\u011bl d\u00e1vat pozor?<\/span><\/strong><\/h2>\n

Pro v\u011bt\u0161inu lid\u00ed je \u010derven\u00fd meloun bezpe\u010dnou potravinou.<\/span><\/p>\n

Opatrnost se doporu\u010duje zejm\u00e9na lidem u\u017e\u00edvaj\u00edc\u00edm n\u011bkter\u00e9 l\u00e9ky na vysok\u00fd krevn\u00ed tlak, nitr\u00e1ty a l\u00e9ky na erektiln\u00ed dysfunkci. Obez\u0159etnost si zaslou\u017e\u00ed i drasl\u00edk \u0161et\u0159\u00edc\u00ed diuretika, nebo\u0165 ve v\u00fdjime\u010dn\u00fdch p\u0159\u00edpadech m\u016f\u017ee vysok\u00e1 konzumace ovlivnit jejich \u00fa\u010dinek.<\/span><\/p>\n

Lid\u00e9 s cukrovkou nebo syndromem dr\u00e1\u017ediv\u00e9ho tra\u010dn\u00edku nemus\u00ed meloun ze sv\u00e9ho j\u00eddeln\u00ed\u010dku vylou\u010dit, m\u011bli by v\u0161ak v\u011bnovat pozornost p\u0159im\u011b\u0159en\u00e9 velikosti porce. Samoz\u0159ejmost\u00ed je vyh\u00fdb\u00e1n\u00ed se melounu p\u0159i potvrzen\u00e9 alergii.<\/span><\/p>\n

Jak poznat zral\u00fd meloun a jak dlouho vydr\u017e\u00ed?<\/span><\/h2>\n

P\u0159i v\u00fdb\u011bru si m\u016f\u017eete v\u0161\u00edmat n\u011bkolika znak\u016f:<\/span><\/p>\n