Ku njangwe, inyama n'ibiryo byoroshye nibigeragezo byabo bidasubirwaho, bityo ibiryo by'injangwe bitetse bihinduka amahitamo yabo meza. Ibyingenzi byingenzi byamatungo yatetse arimo inyama zimbwa nshya, inkoko nshya, salmon nziza, nibindi, bikungahaye kuri proteyine kandi bifite ibinure bike cyane, bifasha amatungo kubona umubiri muzima. Ibiryo bitetse bitetse bifata ubushyuhe buke hamwe nubuhanga bwo guteka buhoro, bushobora kugumana imirire myinshi yibigize, byoroshye guhekenya no gusya, bikwiranye nubwoko bwose bwamatungo.