1.Amaraso
Inyama za tuna zafunzwe zikungahaye ku byuma, kandi icyuma nikimwe mubice nyamukuru bigize platine yumuntu, ubuzima busanzwe burya tuna nyinshi zishobora kongeramo ibyuma byinshi, bigatera guhuza ingirabuzimafatizo zitukura mumubiri, kongera umuvuduko wamaraso, kugeza irinde kubura anemia anemia ifite ingaruka nziza zo kuvura.
2. Kurinda umwijima
Tuna isukuye irimo DHA na EPA nyinshi, aside ya bezoar, ifasha kugabanya ibinure byamaraso, kandi irashobora guteza imbere umwijima.Buri munsi urye ibiryo byinshi bya tuna, birashobora kurinda umwijima, kongera gusohora imikorere yumwijima, kugabanya kwandura umwijima.
3. Indyo yuzuye
Tuna yamenetse mu ntungamubiri za poroteyine irakungahaye, irimo aside irike idahagije ya aside irike, vitamine, hamwe n’imyunyu ngugu nka calcium, zinc, fosifore na magnesium, izo ntungamubiri ni ngombwa mu mirire y’abantu, ibiryo ni ingirakamaro mu kuzamura umubiri no gukura, no kubungabunga umubiri wumuntu imikorere isanzwe ya physiologique.
4.Umubiri wongerewe imbaraga
Tuna isukuye ikungahaye kuri calcium, magnesium, fosifore, kurya birashobora guteza imbere imbaraga zamagufwa, kandi bikungahaye kuri zinc element, birashobora kongera ibikorwa bya enzyme ya metabolism, bigatera imikurire yimitsi, byongeye, bikungahaye kuri proteyine birashobora gutanga ibikoresho fatizo bya synthesis y'imitsi y'umubiri w'umuntu, ikwiriye kurya tuna zimwe zishobora kunoza itegeko nshinga ryayo.