Izibonelelo ezili-12 zeGuarana (kunye neziphumo ebezingalindelekanga)

Umxholo

• 1. Sisityebi kwii-Antioxidants
• 2. Ngaba unokunciphisa ukukhathala kunye nokuphucula ukugxila
• 3. Ngamana angakunceda ufunde ngcono
• 4. Ngamana angakhuthaza ukunciphisa umzimba
• 5. Ngamana Unokusidambisa isifo sohudo esinganyangekiyo kwaye unyange ukuqhinwa
• 6. Ngamana ingakhulisa impilo yentliziyo
• 7. Ngamana angabonelela ngoNcedo lweNtlungu
• 8. Ngamana unokuphucula ukuBonakala koLusu
• 9. Ngamana banokuba nePropati yokuLwa noMhlaza
• 10. Iineempawu zeAntibacterial
• 11. Ngamana unokuzikhusela ngokuchasene nengxaki yamehlo enxulumene nobudala
• 12. Kukhuselekile ngeziphumo ebezingalindelekanga ezimbalwa
• Umgca osezantsi

IGuarana sisityalo saseBrazil esizalelwe kumazantsi eAmazon.

Kwaziwa njenge UPaullinia cupana, sisityalo esinyukayo esixabisekileyo ngenxa yesiqhamo saso.

Isiqhamo se-guarana esikhulileyo silingana nequnube lekofu. Ifana neliso lomntu, iqokobhe elibomvu lifaka imbewu emnyama egutyungelwe ngumgaqo omhlophe.

Isicatshulwa seGuarana senziwa ngokulungisa imbewu ibe ngumgubo (1).

Izizwe zaseAmazon zisebenzise i-guarana kangangeenkulungwane kwiipropathi zayo zonyango ().

Inoluhlu olunomdla lwezinto ezikhuthazayo, ezinje nge caffeine, theophylline kunye ne theobromine. IGuarana ikwaqhayisa ngee-antioxidants, ezinje ngeetannins, i-saponins kunye neekatekini (3).

Namhlanje, i-70% yeguarana evelisiweyo isetyenziswa lishishini leziselo kwiziselo ezinxilisayo kunye nezinika amandla, ngelixa i-30% eseleyo iguqulwe yangumgubo (1).

Nazi izibonelelo ezili-12 ze-guarana, zonke zixhaswa yisayensi.

1. Sisityebi kwii-Antioxidants

I-Guarana ilayishwe ngamacandelo aneempawu zokulwa ne-antioxidant.

Oku kubandakanya i-caffeine, i-theobromine, i-tannins, i-saponins kunye neekatekini (3,, 5).

Ngapha koko, i-guarana ineprofayili ye-antioxidant efanayo naleyo yeti eluhlaza (6).

Ii-antioxidants zibalulekile kuba zithomalalisa iimolekyuli ezinokuba yingozi ezibizwa ngokuba ziiradical radicals. Ezi molekyuli zinokunxibelelana neendawo zeeseli zakho kwaye zibangele umonakalo odibene nokuguga, isifo sentliziyo, umhlaza kunye nezinye izifo ().

Uvavanyo lwe-tube-test lufumene ukuba iipropathi ze-guarana's antioxidant zinokulwa nokukhula komhlaza weseli kwaye zinciphise umngcipheko wesifo sentliziyo kunye nokuguga kolusu (,).

IGuarana iqulethe icaffeine, theobromine, tannins, saponins, catechins kunye nezinye izinto ezinento yokwenza ne-antioxidant.

2. Ngaba unokunciphisa ukukhathala kunye nokuphucula ukugxila

UGuarana waziwa kakhulu njengesithako kwiziselo ezithandwayo zamandla.

Ngumthombo ogqwesileyo wecaffeine, ekunceda ugcine ukugxila kunye namandla engqondo.

Ngapha koko, imbewu ye-guarana inokuqulatha i-caffeine ephindwe kane ukuya kwisithandathu kuneembotyi zekofu (10).

ICaffeine isebenza ngokuthintela iziphumo ze-adenosine, ikhompawundi enceda ingqondo yakho ukuba iphumle. Iyabopha kwi-adenosine receptors, ibathintele ekusebenzeni (11).

Uphononongo lufumanise ukuba abantu abathathe i-guarana ene-vithamin supplement baziva bediniwe ngelixa begqibezela iimvavanyo ezininzi, xa kuthelekiswa nalabo bathathe i-placebo ().

Into enomdla kukuba, uphononongo lukwabonisa ukuba i-guarana inokunciphisa ukudinwa kwengqondo ngenxa yonyango lomhlaza, ngaphandle kweziphumo ebezingalindelekanga (,, 15).

IGuarana ityebile ngecaffeine, enokunciphisa ukudinwa kunye nokuphucula ukugxila. I-caffeine ibhloka iziphumo ze-adenosine, ikhompawundi ekwenza uzive usozela kwaye inceda ingqondo yakho ukuba iphumle.

3. Ngamana angakunceda ufunde ngcono

Uphando lubonise ukuba i-guarana ingabuphucula ubuchule bakho bokufunda nokukhumbula.

Olunye uphononongo lujonge kwiziphumo zeedosi ezahlukeneyo ze-guarana kwiimowudi nasekufundeni. Abathathi-nxaxheba abafumananga nokuba yi-guarana, 37.5 mg, 75 mg, 150 mg okanye 300 mg ().

Abantu abafumene i-37.5 mg okanye i-75 mg ye-guarana baphumelele amanqaku aphezulu ovavanyo. Ukusukela ukuba iidosi ezisezantsi ze-guarana zibonelela ngeedosi ezisezantsi zecaffeine, kukholelwa ukuba ezinye iikhompawundi kwi-guarana ngaphandle kwe-caffeine zinokuba noxanduva ().

Olunye uphononongo luthelekisa i-guarana ne-ginseng, enye into ekhulisa ingqondo.

Nangona zombini i-guarana kunye ne-ginseng ziphucule inkumbulo kunye nokusebenza kovavanyo, abantu abafumene i-guarana bahoya kakhulu imisebenzi yabo kwaye bayigqiba ngokukhawuleza (17).

Ngaphaya koko, izifundo zezilwanyana zibonise ukuba i-guarana inokuphucula inkumbulo (,).

Iidosi ezisezantsi ze-guarana zinokuphucula imeko yeemvakalelo, yokufunda kunye nenkumbulo. Iimpawu ze-guarana, kunye ne-caffeine, zinoxanduva lwezi ziphumo.

4. Ngamana angakhuthaza ukunciphisa umzimba

Kuqikelelwa ukuba umntu omnye kwabathathu abadala baseMelika utyebe kakhulu ().

Ukutyeba kakhulu kukukhathazeka, njengoko kunxulunyaniswa nezifo ezininzi ezinganyangekiyo, kubandakanya isifo sentliziyo, uhlobo lweswekile 2 kunye nomhlaza ().

Into enomdla kukuba, i-guarana inokuba neepropathi ezinceda ukukhuthaza ukunciphisa umzimba.

Okokuqala, i-guarana ngumthombo otyebileyo we-caffeine, enokunyusa imetabolism yakho ngo-3-11% ngaphezulu kweeyure ezili-12. Imetabolism ekhawulezileyo ithetha ukuba umzimba wakho utshisa iikhalori ezininzi xa uphumle ().

Ngaphezu koko, izifundo zetyhubhu yovavanyo zifumanise ukuba i-guarana inokucinezela imfuza enceda ukuveliswa kweeseli ezityebileyo kunye nokukhuthaza iintlobo zemfuza ezicothayo (,).

Nangona kunjalo, iziphumo ze-guarana kwimveliso yeeseli ezinamafutha ebantwini zihlala zingacacanga.

IGuarana iqulethe icaffeine, enokunceda ukunciphisa umzimba ngokunyusa imetabolism. Kufunyenwe ukuba kucinezela izakhi zofuzo ezinceda ukuveliswa kweeseli ezinamafutha kunye nokukhuthaza iintlobo zofuzo ezicothayo. Nangona kunjalo, izifundo ezenziwa ngakumbi ngabantu ziyafuneka.

5. Ngamana Unokusidambisa isifo sohudo esinganyangekiyo kwaye unyange ukuqhinwa

I-Guarana sele isetyenzisiwe kangangeenkulungwane njengesisu sendalo esiswini ukunyanga iingxaki zokugaya ukutya ezinje ngesifo sohudo esinganyangekiyo kunye nokuqunjelwa (1).

Isenokuba nezinto zokulwa norhudo kuba ityebile kwii-tannins, okanye ii-antioxidants ezisekwe kwizityalo.

Ii-Tannins zaziwa ngokuba yi-astringency, oko kuthetha ukuba banokubopha kwaye benze isivumelwano seethishu. Oku kuvumela iitannins ukuba zingangeni manzi kwiindonga zendlela yakho yokwetyisa, ukuthintela ukuba angakanani amanzi afihliweyo kwizibilini zakho ().

Kwelinye icala, i-guarana ityebile kwi-caffeine, enokuthi isebenze njenge-laxative yendalo.

I-caffeine ivuselela i-peristalsis, inkqubo eyenza ukucinywa kwimisipha yamathumbu akho kunye nekholoni. Oku kunokunciphisa ukuqhina ngokutyhala imixholo kwi-rectum ().

Iidosi ezisezantsi ze-guarana aziboneleli nge-caffeine eninzi, ngenxa yoko kunokwenzeka ukuba zichaphazele urhudo. Amanani aphezulu anika i-caffeine engaphezulu kwaye inokuba neziphumo ze-laxative.

Iitannin ezikwi-guarana zinokulunqanda urhudo ngokuthintela ukulahleka kwamanzi. Okwangoku, i-caffeine ese-guarana inokunceda ekuqunjelweni ngokuvuselela ukungcungcutheka emathunjini akho kunye nekholoni etyhiliza imixholo kwi-rectum.

6. Ngamana ingakhulisa impilo yentliziyo

Isifo sentliziyo sinoxanduva lokufa kwabantu abane eMelika ().

UGuarana unokunciphisa umngcipheko wesifo sentliziyo ngeendlela ezimbini.

Okokuqala, ii-antioxidants kwi-guarana zibonakala zinceda ukuhamba kwegazi kwaye zinokuthintela amahlwili egazi ().

Okwesibini, uphononongo lubonakalisile ukuba i-guarana inokunciphisa i-oxidation ye-cholesterol "embi" ye-LDL. I-cholesterol ye-LDL ene-oxidized inokuba negalelo ekwakhiweni kwe-plaque kwimithambo yakho.

Ngapha koko, abantu abadala abatya i-guarana banokuba ne-27% ye-LDL engaphantsi kwe-oxidized kunabantu abadala abakwiminyaka efanayo abangazidliyo ezi ziqhamo (29).

Nangona kunjalo, uninzi lophando kunxibelelwano phakathi kwempilo yentliziyo kunye ne-guarana luvela kuvavanyo lweetyhubhu zovavanyo. Izifundo ezingakumbi ezenziwa ngabantu ziyafuneka ngaphambi kokuba kwenziwe izindululo.

IGuarana inokunceda impilo yentliziyo ngokuphucula ukuhamba kwegazi kunye nokuthintela amahlwili egazi. Inokunciphisa i-oxidation ye-cholesterol "embi" ye-LDL.

7. Ngamana angabonelela ngoNcedo lweNtlungu

Ngokwembali, i-guarana yayisetyenziswa zizizwe zaseAmazon njengesixhobo sokuthomalalisa iintlungu.

Iimpawu zokuthomalalisa iintlungu ze-guarana zibangelwa ngumxholo ophezulu wecaffeine.

ICaffeine idlala indima ekulawuleni iintlungu, njengoko ibopha kwaye ibhloka ii-adenosine receptors.

Ezi zimbini ze-receptors-i-A1 kunye ne-A2a-ziyabandakanyeka ekuvuseleleni iimvakalelo zentlungu ().

Xa i-caffeine ibophelela kwezi receptors, inokunciphisa iintlungu.

Esi sesinye sezizathu zokuba i-caffeine ifunyanwa kumayeza amaninzi okuphelisa iintlungu. Izifundo zibonise ukuba inokuziphucula kakhulu iziphumo zazo ().

I-caffeine e-guarana inokubonelela ngentlungu yokuphelisa ngokuthintela ii-adenosine receptors, ezichaphazelekayo ekuvuseleleni iimvakalelo zentlungu.

8. Ngamana unokuphucula ukuBonakala koLusu

Ngenxa yeempawu zayo ezomeleleyo zokulwa ne-antioxidant kunye ne-antimicrobial, i-guarana ithandwa kakhulu kwimizi-mveliso yezithambiso njengesithako kwizithambiso ezichasene nokwaluphala, izinto zokuthambisa, iisepha kunye neemveliso zeenwele.

Ngapha koko, umxholo wayo wecaffeine unceda ukuhamba kwegazi kulusu ().

Uvavanyo lweetyhubhu zovavanyo lubonakalisile ukuba ii-antioxidants kwi-guarana zinokuwunciphisa ngokubonakalayo umonakalo wesikhumba onxulumene nobudala ().

Ngapha koko, uphononongo lwezilwanyana lubonisa ukuba izinto zokuthambisa zegaarana zinokunciphisa ukurhawuzelela izidlele zakho, ukuphucula ukuqina kolusu kunye nokunciphisa imibimbi ejikeleze amehlo akho ().

IGuarana ineempawu zokulwa ne-antioxidant kunye ne-antimicrobial, eyenza ukuba ibe sisongezelelo esiqhelekileyo kwiimveliso zezithambiso. Inokunceda ukuhamba kwegazi kulusu lwakho, kunciphise umonakalo onxulunyaniswa nokuguga kunye nokunciphisa izinto ezingafunekiyo, ezinje ngesikhumba se-saggy kunye nemibimbi.

9. Ngamana banokuba nePropati yokuLwa noMhlaza

Umhlaza sisifo esibonakaliswa kukungalawuleki kokukhula kweeseli.

Izifundo zezilwanyana kunye neetyhubhu zovavanyo zibonisa ukuba i-guarana inokukhusela ngokuchasene nomonakalo we-DNA, ukucinezela ukukhula kwesifo somhlaza kwaye kubangele nokufa kweseli somhlaza (,,).

Olunye uphononongo lweempuku lufumanise ukuba abo batyiswa i-guarana baneeseli ezinomhlaza ezingama-58% kwaye baphantse baphindaphindwe kahlanu ukwanda kwesifo somhlaza, xa kuthelekiswa neempuku ezingazange zifumane i-guarana ().

Olunye uphononongo lwetyhubhu yovavanyo lufumanise ukuba i-guarana icinezele ukukhula kweeseli zomhlaza kwikholoni, kunye nokukhuthaza ukufa kwazo ().

Izazinzulu zikholelwa ekubeni iipropathi zokulwa umhlaza ezinokubakho ze-guarana zivela kumxholo we-xanthines, ezizinto ezihambelana ne-caffeine kunye ne-theobromine.

Oko kwathethi, nangona iziphumo zovavanyo lwe-tube-test kunye nezilwanyana ziyathembisa, uphando olwenziwe ngabantu luyafuneka.

Izifundo zezilwanyana kunye neetyhubhu zovavanyo zifumanise ukuba i-guarana inezinto ezichasene nomhlaza. Nangona kunjalo, uphando olusekwe ebantwini luyafuneka ngaphambi kokucebisa i-guarana kunyango.

10. Iineempawu zeAntibacterial

IGuarana inezinto ezininzi ezinokuthintela okanye ukubulala iintsholongwane eziyingozi.

Enye yeebhaktheriya yile Escherichia coli (E. coli), Ohlala emathunjini abantu kunye nezilwanyana.

Uninzi E. coli iintsholongwane azinabungozi, kodwa ezinye zinokubangela urhudo okanye ukugula (,).

Izifundo ziye zafumanisa ukuba i-guarana inokucinezela ukukhula kwe Inguqulelo yeStreptococcus (S. imizimba), Ibhaktheriya enokubangela ukuba amazinyo aqhekeze kunye nokubola kwamazinyo (,).

Kukholelwa ukuba indibaniselwano ye-caffeine kunye nezixhobo ezisekwe kwizityalo ezinje ngeekatekini okanye iitannins zinoxanduva lwe-guarana's antibacterial effects (, 42).

IGuarana inezinto ezinokuthintela okanye ukubulala iintsholongwane eziyingozi, ezinje nge E. coli kwaye Inguqulelo yeStreptococcus.

11. Ngamana unokuzikhusela ngokuchasene nengxaki yamehlo enxulumene nobudala

Kuqhelekile ukuba amehlo aqhubeke ngokuthe ngcembe ngokuguga.

Izinto ezinjengokukhanya kwelanga, ukutya okungekho mgangathweni kunye neendlela ezithile zokuphila ezinje ngokutshaya zinokuhlisa amehlo akho ekuhambeni kwexesha kwaye zonyuse umngcipheko wokuphazamiseka okunxulumene neliso ().

IGuarana iqulethe iikhompawundi ezilwa noxinzelelo lwe-oxidative, umngcipheko omkhulu wokuphazamiseka kwamehlo okuhambelana nobudala njengokuwohloka kwe-macular, cataract kunye ne-glaucoma ().

Olunye uphononongo lufumanise ukuba abantu abayitya rhoqo i-guarana banombono wokuzixela ongcono kunabantu abayityayo kancinci okanye hayi (45).

Kwakweso sifundo sinye, izazinzulu zenza uvavanyo lokuvavanya ityhubhu yokufumanisa ukuba i-guarana ingazikhusela iiseli zamehlo ngokuchasene nezinto ezenza uxinzelelo lwe-oxidative. IGuarana yehlise kakhulu isixa somonakalo we-DNA kunye nokufa kweseli yamehlo, xa kuthelekiswa ne-placebo (45).

Oko kwathiwa, kukho uphando olunqongopheleyo kwindawo ye-guarana kunye nokuphazamiseka kwamehlo okunxulumene nobudala. Izifundo ezingakumbi ezenziwa ngabantu ziyafuneka ngaphambi kokuba kwenziwe izindululo.

Izifundo zetyhubhu yovavanyo zifumanise ukuba i-guarana inokulwa noxinzelelo lwe-oxidative, olunxulunyaniswa nokuphazamiseka kwamehlo okunxulumene nobudala. Nangona kunjalo, lo mmandla wophando ulinganiselwe, ngenxa yoko izifundo ezingakumbi ezenziwa ngabantu ziyafuneka ngaphambi kokubonelela ngezindululo.

12. Kukhuselekile ngeziphumo ebezingalindelekanga ezimbalwa

IGuarana ineprofayili yokhuseleko egqwesileyo kwaye iyafumaneka ngokubanzi.

Uphando lubonisa ukuba i-guarana inetyhefu esezantsi kwiidosi ezisezantsi ukuya kumodareyitha (,,).

Kwiidosi eziphezulu, i-guarana inokubangela iziphumo ebezingalindelekanga ezifanayo nezo zokutya kakhulu i-caffeine, kubandakanya (,):

• Ukubetha kwentliziyo
• Ukuphuthelwa
• Intloko ebuhlungu
• Ukuxhuzula
• Ixhala
• Uvalo
• Isisu esimoshakele
• Ukuxakeka

Kubalulekile ukuba uqaphele ukuba i-caffeine inokuba likhoboka kwaye ikhokelele ekuxhomekekeni kwiidosi eziphezulu ().

Abafazi abakhulelweyo kufuneka bakuphephe okanye banciphise ukutya kwe-guarana, njengoko icaffeine inokuwela ipasecenta. I-caffeine eninzi inokubangela ukukhula okungaqhelekanga kumntwana wakho okanye yonyuse umngcipheko wokukhulelwa kwesisu ().

Nangona i-guarana ingenayo idosi ecetyiswayo, uninzi lwabantu olwenziwe kuphando lufumanise ukuba iidosi eziphantsi njenge-50-75 mg inokubonelela ngezibonelelo zezempilo ezinxulunyaniswe ne-guarana (, 17).

IGuarana ibonakala ikhuselekile kwaye ifumaneka ngokubanzi. Kwiidosi eziphezulu, kunokuba neziphumo ebezingalindelekanga ezifanayo kwezo zokutya kakhulu i-caffeine.

Umgca osezantsi

IGuarana sesona sithako sithandwayo kumandla amaninzi nakwiziselo ezinxilisayo.

Isetyenziswe zizizwe zaseAmazon ngenxa yonyango lwayo kangangeenkulungwane.

I-Guarana ihlala ityhilwa amandla ayo okunciphisa ukudinwa, ukukhulisa amandla kunye nokunceda ukufunda kunye nenkumbulo. Kukwanxulunyaniswe nempilo ebhetele yentliziyo, ukwehla kobunzima, ukukhulula iintlungu, ulusu olusempilweni, umngcipheko womhlaza ophantsi kunye nokwehla komngcipheko wezifo zamehlo ezinxulumene nobudala.

Kufumaneka ngokubanzi njengesongezelelo kwaye kungongezwa ngokulula kukutya kwakho.

Uninzi lophando lubonisa ukuba iidosi eziphakathi kwe-50-75 mg ye-guarana zanele ukukunika izibonelelo zempilo, nangona kungekho ngcebiso esemthethweni yethamo.

Nokuba ufuna ukwandisa amanqanaba akho amandla okanye ukuphucula impilo yakho yonke, i-guarana inokulunga ukuzama.