Izinzuzo eziyi-12 zeGuarana (Imiphumela emibi engeziwe)

-Delile

• 1. Ucebile ngama-Antioxidants
• 2.Inganciphisa Ukukhathala Futhi Ithuthukise Ukugxila
• 3. Kungakusiza ufunde kangcono
• 4. Kwangathi Kungakhuthaza Ukwehlisa Isisindo
• 5. Senganciphisa Uhudo Olungapheli futhi Silaphe Ukuqunjelwa
• 6. Kwangathi Kungakhulisa Impilo Yenhliziyo
• 7. Kwangathi Kuhlinzekwe Ukukhululwa Kwezinhlungu
• 8. Kwangathi Kungathuthukisa Ukubukeka Kwesikhumba
• 9. Kungaba Nezindawo Zokulwa Nomdlavuza
• 10. Inezindawo Zokulwa Namagciwane
• 11. Kwangathi Kungavikelwa Ekuphazamisweni Kwamehlo Okuhlobene Nobudala
• 12. Kuphephile Ngemiphumela emibi Emibalwa
• Okusemqoka

IGuarana isitshalo saseBrazil esidabuka emgodini wase-Amazon.

Obeye aziwe njengo UPaullinia cupana, kuyisitshalo esikhuphukayo esaziswa izithelo zaso.

Isithelo se-guarana esivuthiwe sicishe silingane nejikijolo yekhofi. Ifana neso lomuntu, negobolondo elibomvu lifaka imbewu emnyama embozwe i-aril emhlophe.

Ukukhishwa kweGuarana kwenziwa ngokucubungula imbewu ibe yimpuphu (1).

Izizwe zase-Amazonia zisebenzise i-guarana amakhulu eminyaka ukwelashwa kwayo ().

Iqukethe uhla oluhlaba umxhwele lwezikhuthazi, njenge-caffeine, i-theophylline ne-theobromine. IGuarana ibuye inama-antioxidants, njengama-tannins, ama-saponins nama-catechins (3).

Namuhla, ama-70% e-guarana akhiqizwayo asetshenziswa imboni yeziphuzo kuziphuzo ezithambile nezamandla, kanti ama-30% asele aphendulwa impuphu (1).

Nazi izinzuzo eziyi-12 ze-guarana, zonke ezisekelwa yisayensi.

1. Ucebile ngama-Antioxidants

IGuarana ilayishwe ngamakhemikhali anezakhi ze-antioxidant.

Lokhu kufaka phakathi i-caffeine, i-theobromine, i-tannins, ama-saponins nama-catechins (3,, 5).

Eqinisweni, i-guarana inephrofayli ye-antioxidant efana naleyo yetiye eluhlaza (6).

Ama-antioxidants abalulekile ngoba enza ama-molecule angaba yingozi abizwe ngama-radicals amahhala. Lawa ma-molecule angasebenzisana nezingxenye zamaseli akho futhi adale umonakalo oxhumene nokuguga, isifo senhliziyo, umdlavuza nezinye izifo ().

Ucwaningo lwe-test-tube luthole ukuthi izakhiwo ze-guarana antioxidant zingalwisana nokukhula kwamangqamuzana omdlavuza futhi zinciphise ubungozi besifo senhliziyo nokuguga kwesikhumba (,).

IGuarana iqukethe i-caffeine, i-theobromine, ama-tannins, ama-saponin, amakatekini namanye ama-compounds anezakhi zokulwa ne-antioxidant.

2.Inganciphisa Ukukhathala Futhi Ithuthukise Ukugxila

IGuarana yaziwa kakhulu njengesithako seziphuzo zamandla ezidumile.

Kungumthombo omuhle kakhulu we-caffeine, ekusiza ukuthi ugcine ukugxila namandla engqondo.

Eqinisweni, imbewu ye-guarana ingaqukatha i-caffeine ephindwe kane noma kasithupha kunebhontshisi yekhofi (10).

I-caffeine isebenza ngokuvimba imiphumela ye-adenosine, ikhompiyutha esiza ubuchopho bakho buphumule. Ibophezela kuma-adenosine receptors, ibavimbele ekusebenzeni (11).

Ucwaningo luthole ukuthi abantu abathathe i-guarana equkethe i-vitamin supplement bazizwa bekhathele kancane ngenkathi beqeda izivivinyo eziningana, uma kuqhathaniswa nalabo abathathe i-placebo ().

Kuyathakazelisa ukuthi ucwaningo lukhombisa nokuthi i-guarana inganciphisa ukukhathala kwengqondo ngenxa yokwelashwa komdlavuza, ngaphandle kwemiphumela emibi (,, 15).

IGuarana icebile nge-caffeine, enganciphisa ukukhathala futhi ithuthukise ukugxila. I-caffeine ivimba imiphumela ye-adenosine, inhlanganisela ekwenza uzizwe ukozela futhi isize ubuchopho bakho buphumule.

3. Kungakusiza ufunde kangcono

Ucwaningo lukhombisile ukuthi i-guarana ingalithuthukisa ikhono lakho lokufunda nokukhumbula.

Ucwaningo oluthile lubheke imiphumela yemithamo ehlukene ye-guarana kumzwelo nasekufundeni. Abahlanganyeli abatholanga i-guarana, i-37.5 mg, i-75 mg, i-150 mg noma i-300 mg ().

Abantu abathole ama-37.5 mg noma ama-75 mg we-guarana bathole amaphuzu aphezulu okuhlolwa. Njengoba imithamo ephansi ye-guarana ihlinzeka ngemithamo ephansi ye-caffeine, kukholelwa ukuthi amanye amakhemikhali e-guarana ngaphandle kwe-caffeine kungenzeka ukuthi abe nesibopho esithile ().

Olunye ucwaningo lwaqhathanisa i-guarana ne-ginseng, enye into eyakha ubuchopho.

Yize zombili i-guarana ne-ginseng zithuthukise inkumbulo nokusebenza kokuhlola, abantu abathola i-guarana banake kakhulu imisebenzi yabo futhi bayiphothula ngokushesha okukhulu (17).

Ngaphezu kwalokho, izifundo zezilwane zikhombisile ukuthi i-guarana ingayithuthukisa inkumbulo (,).

Ukweqiwa okuphansi kwe-guarana kungathuthukisa imizwa, ukufunda nokukhumbula. Amakhemikhali e-guarana, kanye ne-caffeine, anesibopho sale miphumela.

4. Kwangathi Kungakhuthaza Ukwehlisa Isisindo

Kulinganiselwa ukuthi umuntu oyedwa kwabathathu baseMelika ukhuluphele ().

Ukukhuluphala kuyinkinga ekhulayo, njengoba ixhunyaniswe nezifo eziningi ezingalapheki, kufaka phakathi isifo senhliziyo, uhlobo lwesifo sikashukela sohlobo 2 nomdlavuza ().

Kuyathakazelisa ukuthi i-guarana ingaba nezindawo ezisiza ukukhuthaza ukunciphisa umzimba.

Okokuqala, i-guarana iwumthombo ocebile we-caffeine, engakhuphula umzimba wakho ngokudla okungu-3-1% ngaphezu kwamahora ayi-12. I-metabolism esheshayo isho ukuthi umzimba wakho ushisa ama-calories amaningi lapho uphumule ().

Ngaphezu kwalokho, izifundo ze-test-tube zithole ukuthi i-guarana ingacindezela izakhi zofuzo ezisiza ukukhiqizwa kwamangqamuzana anamafutha futhi zikhuthaze izakhi zofuzo ezinciphisa ijubane (,).

Kodwa-ke, imiphumela ye-guarana ekukhiqizweni kwamangqamuzana amafutha kubantu ihlala ingacaci.

IGuarana iqukethe i-caffeine, engasiza ekunciphiseni isisindo ngokwandisa umzimba. Kutholakale futhi ukuthi kucindezela izakhi zofuzo ezisiza ukukhiqizwa kwamangqamuzana anamafutha futhi zikhuthaze izakhi zofuzo ezinciphisa ijubane. Kodwa-ke, kudingeka izifundo eziningi ezenzelwe abantu.

5. Senganciphisa Uhudo Olungapheli futhi Silaphe Ukuqunjelwa

IGuarana isetshenziswe amakhulu eminyaka njenge-tonic yesisu yemvelo ukuphatha izinkinga zokugaya ukudla njengohudo olungapheli nokuqunjelwa (1).

Kungaba nezindawo zokulwa nohudo ngoba icebile kuma-tannins, noma ama-antioxidants asezitshalweni.

Ama-Tannins aziwa nge-astringency yawo, okusho ukuthi angabopha futhi enze isivumelwano ngezicubu. Lokhu kuvumela ama-tannins ukuthi angangeni izindonga zomgudu wakho wokugaya ukudla, abeke umkhawulo wamanzi afihlwe emathunjini akho ().

Ngakolunye uhlangothi, i-guarana icebile nge-caffeine, engasebenza njenge-laxative yemvelo.

I-caffeine ivuselela i-peristalsis, inqubo eyenza ukuciphana emisipheni yamathumbu akho nakwikholoni. Lokhu kunganciphisa ukuqunjelwa ngokucindezela okuqukethwe ku-rectum ().

Izilinganiso eziphansi ze-guarana azihlinzeki nge-caffeine eningi, ngakho-ke maningi amathuba okuba nomthelela wokulwa nohudo. Imithamo ephezulu ihlinzeka nge-caffeine eyengeziwe futhi ingaba nemiphumela yokulahla.

Ama-tannin ase-guarana angadambisa isifo sohudo ngokuvimbela ukulahleka kwamanzi. Okwamanje, i-caffeine ese-guarana inganciphisa ukuqunjelwa ngokuvuselela ukucindezela emathunjini akho nasekholoni okucindezela okuqukethwe kubheke unxande.

6. Kwangathi Kungakhulisa Impilo Yenhliziyo

Isifo senhliziyo sinesibopho sokufa komuntu oyedwa kwabane eMelika ().

IGuarana inganciphisa ubungozi besifo senhliziyo ngezindlela ezimbili.

Okokuqala, ama-antioxidants e-guarana abonakala esiza ukugeleza kwegazi futhi angavimbela amahlule egazi ().

Okwesibili, ucwaningo luye lwabonisa ukuthi i-guarana ingahle inciphise i-oxidation ye-cholesterol "embi" ye-LDL. I-cholesterol ye-LDL ene-oxidized ingafaka isandla ekwakhiweni kwe-plaque emithanjeni yakho.

Eqinisweni, abantu abadala abadla i-guarana bangaba ne-LDL efinyelela ku-27% engaphansi kwe-LDL kunabantu abadala abalinganayo abangasidli lesi sithelo (29).

Kodwa-ke, ucwaningo oluningi ngokuxhumana phakathi kwempilo yenhliziyo ne-guarana luvela ezifundweni ze-test-tube. Kudingeka izifundo eziningi ezenzelwe abantu ngaphambi kokuba kwenziwe izincomo.

IGuarana ingasiza impilo yenhliziyo ngokwenza ngcono ukugeleza kwegazi nokuvimbela amahlule egazi. Kunganciphisa futhi ne-oxidation ye-cholesterol "embi" ye-LDL.

7. Kwangathi Kuhlinzekwe Ukukhululwa Kwezinhlungu

Ngokomlando, i-guarana yayisetshenziswa izizwe zase-Amazonia njengesidakamizwa sokuqeda izinhlungu.

Izici zokudambisa izinhlungu ze-guarana kungenxa yokuqukethwe kwayo okuphezulu kwe-caffeine.

I-caffeine ibamba iqhaza ekuphathweni kobuhlungu, njengoba ibopha futhi ivimbele ama-adenosine receptors.

Amabili ala ma-receptors - i-A1 ne-A2a - ayabandakanyeka ekuvuseleleni imizwa yobuhlungu ().

Lapho i-caffeine ibophezela kulawa ma-receptors, inganciphisa ukuzwa kobuhlungu.

Lesi ngesinye sezizathu esenza ukuthi i-caffeine ivame ukutholakala emithini eminingi yokusiza izinhlungu zasesitolo. Izifundo zikhombisile ukuthi zingakhulisa kakhulu imiphumela yazo ().

I-caffeine ese-guarana ingahlinzeka ukudambisa izinhlungu ngokuvimba ama-adenosine receptors, abandakanyeka ekuvuseleleni imizwa yobuhlungu.

8. Kwangathi Kungathuthukisa Ukubukeka Kwesikhumba

Ngenxa yezakhi zayo ezinamandla zokulwa ne-antioxidant kanye ne-antimicrobial, i-guarana ithandwa kakhulu embonini yezimonyo njengesithako sokhilimu abalwisana nokuguga, lotions, insipho nemikhiqizo yezinwele.

Ngaphezu kwalokho, okuqukethwe yi-caffeine kusiza ukugeleza kwegazi kuya esikhunjeni ().

Ucwaningo lwe-test-tube lukhombisile ukuthi ama-antioxidants e-guarana angawehlisa kakhulu umonakalo wesikhumba ohlobene nobudala ().

Ngaphezu kwalokho, izifundo zezilwane zikhomba ukuthi izimonyo eziqukethe i-guarana zinganciphisa ukuxega ezihlathini, kuthuthukise ukuqina kwesikhumba futhi kunciphise imibimbi ezungeze amehlo akho ().

IGuarana inezakhi zokulwa namagciwane, okwenza kube isithasiselo esivamile emikhiqizweni yezimonyo. Kungasiza ukugeleza kwegazi esikhunjeni sakho, kunciphise umonakalo oxhumene nokuguga futhi kunciphise izinto ezingathandeki, njengesikhumba se-saggy nemibimbi.

9. Kungaba Nezindawo Zokulwa Nomdlavuza

Umdlavuza yisifo esibonakala ngokukhula okungalawuleki kwamaseli.

Ucwaningo lwezilwane nolwe-test-tube lukhombisa ukuthi i-guarana ingavikela ekulimaleni kwe-DNA, icindezele ukukhula komdlavuza weseli futhi ibangele nokufa komdlavuza weseli (,,).

Olunye ucwaningo kumagundane luthole ukuthi labo abondliwe i-guarana babenamaseli omdlavuza angaphansi kwama-58% futhi bacishe benyuka ngokuphindwe kahlanu ekufeni komdlavuza wesifo somdlavuza, uma kuqhathaniswa namagundane angazange ayithole i-guarana ().

Olunye ucwaningo lwe-test-tube luthole ukuthi i-guarana icindezela ukukhula kwamangqamuzana omdlavuza kukholoni, kanye nokukhuthaza ukufa kwawo ().

Ososayensi bakholelwa ukuthi amandla okulwa nomdlavuza we-guarana avela kokuqukethwe kwayo kwama-xanthines, okuyizinhlanganisela ezifana ne-caffeine ne-theobromine.

Lokho kusho, yize imiphumela ye-test-tube kanye neyezifundo zezilwane iyathembisa, ucwaningo olwenziwe ngabantu luyadingeka.

Izifundo zezilwane kanye ne-test-tube zithole ukuthi i-guarana ingaba nezindawo ezilwa nomdlavuza. Kodwa-ke, ucwaningo olwenziwe ngabantu luyadingeka ngaphambi kokuncoma i-guarana yokwelashwa.

10. Inezindawo Zokulwa Namagciwane

IGuarana iqukethe izinto eziningi ezingavimbela noma zibulale amagciwane ayingozi.

Elinye lala magciwane yi Escherichia coli (E. coli), ehlala emathunjini abantu nezilwane.

Iningi E. coli amabhaktheriya awanabungozi, kepha amanye angadala isifo sohudo noma ukugula (,).

Ucwaningo luye lwathola nokuthi i-guarana ingavimbela ukukhula kwe- Izitumbu ze-Streptococcus (S. mutans), ibhaktheriya engadala izingcwecwe zamazinyo nokubola kwamazinyo (,).

Kukholakala ukuthi inhlanganisela ye-caffeine nezinhlanganisela ezitshalwe ezitshalweni ezinjengamakateyini noma ama-tanini zibhekele imiphumela yokulwa namagciwane ye-guarana (, 42).

IGuarana iqukethe izinto ezingavimbela noma zibulale amagciwane ayingozi, njenge E. coli futhi Izitumbu ze-Streptococcus.

11. Kwangathi Kungavikelwa Ekuphazamisweni Kwamehlo Okuhlobene Nobudala

Kuvamile ukuthi ukubona kubi ngokuya kukhula ngokuguga.

Izinto ezinjengokukhanya kwelanga, ukungadli kahle kanye nezindlela ezithile zokuphila ezinjengokubhema zingadonsa amehlo akho ngokuhamba kwesikhathi futhi zikhuphule ubungozi bokuphazamiseka okuhlobene neso ().

IGuarana iqukethe izinhlanganisela ezilwa nengcindezi ye-oxidative, okuyimbangela enkulu yobungozi bokuphazamiseka kwamehlo okuhlobene nobudala njengokuwohloka kwe-macular, i-cataract ne-glaucoma ().

Ucwaningo oluthile luthole ukuthi abantu abadla i-guarana njalo banombono wokuzibika ongcono kunabantu abawudla kancane noma cha (45).

Esifundweni esifanayo, ososayensi benze ucwaningo lwe-tube-test ukuthola ukuthi i-guarana ingawavikela yini amaseli wamehlo kumakhemikhali adala ukucindezeleka okwenziwe nge-oxidative. IGuarana yehlise kakhulu inani lokulimala kwe-DNA nokufa kwamangqamuzana wamehlo, uma kuqhathaniswa ne-placebo (45).

Lokho kusho ukuthi kunocwaningo olulinganiselwe endaweni ye-guarana kanye nokuphazamiseka kwamehlo okuhlobene nobudala. Kudingeka izifundo eziningi ezenzelwe abantu ngaphambi kokuba kwenziwe izincomo.

Ucwaningo lwe-test-tube luthole ukuthi i-guarana ingalwisana nengcindezi ye-oxidative, exhunyaniswa nokuphazamiseka kwamehlo okuhlobene nobudala. Kodwa-ke, le ndawo yocwaningo ilinganiselwe, ngakho-ke kudingeka izifundo eziningi ezenzelwe abantu ngaphambi kokunikeza izincomo.

12. Kuphephile Ngemiphumela emibi Emibalwa

IGuarana inephrofayili enhle kakhulu yezokuphepha futhi iyatholakala kabanzi.

Ucwaningo lukhombisa ukuthi i-guarana inobuthi obuncane kumithamo ephansi ukuya kokumaphakathi (,,).

Ngemithamo ephezulu, i-guarana ingadala imiphumela emibi efana naleyo yokudla ngokweqile kwe-caffeine, kufaka phakathi (,):

• Inhliziyo ishaya ngamandla
• Ukuqwasha
• Ukuphathwa ikhanda
• Ukuquleka
• Ukukhathazeka
• Ukwesaba
• Isisu esibuhlungu
• Ukuthuthumela

Kuyaqapheleka ukuthi i-caffeine ingaba umlutha futhi iholele ekuthembekeni ngemithamo ephezulu ().

Abesifazane abakhulelwe kufanele bagweme noma banciphise ukudla i-guarana, ngoba i-caffeine ingawela i-placenta. I-caffeine eningi kakhulu ingadala ukukhula okungajwayelekile enganeni yakho noma inyuse ingozi yokuphuphuma kwesisu ().

Yize i-guarana ingenawo umthamo onconyiwe, ucwaningo oluningi olwenziwe ngabantu luthole ukuthi imithamo ephansi njengo-50-75 mg inganikeza izinzuzo zezempilo ezixhunyaniswe ne-guarana (, 17).

IGuarana ibonakala iphephile futhi iyatholakala kabanzi. Ngemithamo ephezulu, ingaba nemiphumela emibi efanayo kulabo abadla ngokweqile i-caffeine.

Okusemqoka

IGuarana iyisithako esithandwayo ezenzweni eziningi zamandla neziphuzo ezibandayo.

Isetshenziswe izizwe zakwa-Amazonia ngemiphumela yaso yokwelapha amakhulu eminyaka.

IGuarana ijwayele ukuthathelwa ikhono layo lokunciphisa ukukhathala, ukukhulisa amandla nokusiza ukufunda nenkumbulo. Iphinde yaxhunyaniswa nempilo yenhliziyo engcono, ukwehla kwesisindo, ukuqeda izinhlungu, isikhumba esinempilo, ingozi yomdlavuza ephansi kanye nokwehla kwengozi yezifo zamehlo ezihlobene nobudala.

Kutholakala kabanzi njengesengezo futhi kungangezwa kalula ekudleni kwakho.

Ucwaningo oluningi lukhombisa ukuthi imithamo ephakathi kuka-50-75 mg we-guarana yanele ukukunikeza izinzuzo zezempilo, noma kungenasincomo somthamo esisemthethweni.

Kungakhathaliseki ukuthi ufuna ukukhulisa amazinga akho wamandla noma umane uthuthukise impilo yakho yonke, i-guarana ingakufanelekela ukuzama.