Icyayi kibisi nicyambere mubinyobwa bitandatu byubuzima byatangajwe n’umuryango w’abibumbye, kandi ni kimwe mu bikoreshwa cyane. Irangwa namababi asobanutse nicyatsi kibisi. Kubera ko amababi yicyayi adatunganywa naimashini itunganya icyayi, ibintu byumwimerere mumababi mashya yigiti cyicyayi bibitswe kurwego runini. Muri byo, intungamubiri nyinshi nka polifenole y'icyayi, aside amine, na vitamine zagumishijwe ku bwinshi, ibyo bikaba bitanga umusingi w'inyungu z'ubuzima bw'icyayi kibisi.

  Icyayi gikungahaye ku ntungamubiri n'ibigize imiti. Intungamubiri nyamukuru ni: proteyine na aside amine, amavuta, karubone, imyunyu ngugu hamwe na vitamine. Muri byo, harimo ubwoko burenga 10 bwa vitamine, harimo vitamine A, vitamine D, vitamine E, vitamine K, Vitamine B1, vitamine B2, vitamine B3, vitamine B5, vitamine B6, vitamine H, vitamine C, niacin na inositol, n'ibindi, Byongeye kandi, icyayi kirimo kandi imiti ifite imirimo itandukanye, nka polifenol yicyayi, cafeyine, na polysaccharide yicyayi.Niyo mpamvu icyayi gifite inyungu esheshatu zikomeye nka "bitatu birwanya" na "bitatu byo hasi", aribyo kurwanya kanseri, kurwanya imirasire, kurwanya okiside, no kugabanya umuvuduko wamaraso, ibinure byamaraso, hamwe nisukari yamaraso. Ubushakashatsi bwakozwe na Porofeseri Nicolas Tangshan wo mu kigo cy’ubuvuzi cya Preventive Medicine bwerekana ko abantu banywa icyayi bafite ibyago byo gupfa 24% ugereranije n’abatanywa icyayi. Ubushakashatsi bw’ibyorezo mu Buyapani bwerekana ko ugereranije n’abantu banywa ibikombe bitarenze 3 byicyayi (30 ml ku gikombe) kumunsi, abagabo banywa ibikombe 10 byicyayi kumunsi bafite ibyago byo hasi ya 42% byindwara zifata umutima, nabagore banywa munsi ya 18%.

Icyayi kibisi gikundwa nabantu ibihumbi, kandi impamvu nyinshi zituma gikundwa nabakunda icyayi kibisi nuko icyayi kibisi gikura vuba. Icyayi kibisi gikunda igicucu nubushuhe, ntigishobora guhura nizuba, kandi gifite umuvuduko mwinshi. Muguragutunganya icyayi kibisiimashininaicyuma naizindi mashini z'icyayi, abahinzi b'icyayi barashobora kumenya igihe nyacyo kiranga kumera no gutoragura umunsi umwe, ibyo ntibizigama amafaranga yumurimo gusa, ahubwo biniyongera Isoko ryiyongera, kandi amababi yicyayi yo mu gitondo yo mu rwego rwo hejuru arashobora gutemba mumasoko kubiciro byemerwa cyane kubaguzi, kuzuza icyuho cyo gutoranya ibindi byayi, no guhuza ibyifuzo byabakunda icyayi kurwego runini. Byongeye kandi, icyayi kibisi gifite ibisabwa bike cyane kugirango habe icyuho. Ugereranije n'amababi y'icyayi akozwe mu nkono y'ibumba ry'umuyugubwe, icyayi kibisi gishobora guhitamo icyayi icyo ari cyo cyose n'icyayi cyashyizwe ku isoko, kandi gishobora kwerekana uburyo bw'icyayi. Byongeye kandi, icyayi kibisi gifite amazi meza asabwa. Icyayi kibisi gikeneye gusa gushirwa mumazi yo hagati kandi yujuje ubuziranenge nkamazi asanzwe yubutare namazi yo mumisozi, kugirango abakunda icyayi kibisi bashobore kuryoherwa nuburyohe bwihariye.

Muri iki gihe cyizuba, ikintu cyiza cyane nukuba mucyumba gikonje, hamwe numuyaga ukonje uhuha mucyumba, ukareba kuri icyayi kumeza, kumva amajwi atontoma, no kumarana umwanya wawe mumahoro.