Soya ndi chimodzi mwazinthu zofunika kwambiri pazakudya zamasamba. Soya ali ndi mankhwala omwe amadziwika kuti isoflavones, omwe mankhwala ake amafanana ndi ma estrogens aumunthu. Kufanana uku kumabweretsa nkhawa kuti mankhwala a soya amatha kukhala ndi zotsatira za mahomoni, monga kuchitira akazi kapena kukulitsa chiwopsezo cha khansa mwa amayi.
Zotsatira za kafukufuku siziwonetsa zotsatira zoyipa za kumwa soya kwa amuna - milingo ya testosterone ndi ntchito yobereka zimasungidwa. Koma, odwala khansa ndi anthu athanzi adayesedwa ku University of Southern California. Amayi omwe amadya soya tsiku lililonse anali ochepera 30% kukhala ndi khansa ya m'mawere kuposa omwe amadya soya wochepa kwambiri. (Kuthirako ndi pafupifupi 1 chikho cha mkaka wa soya kapena ½ chikho tofu.) Chotero, mlingo wochepa wa soya wodyedwa ungachepetse ngozi ya khansa ya m’mawere.
Kuchuluka kwa mankhwala a soya kumatalikitsa moyo wa amayi omwe ali ndi khansa ya m'mawere ndipo adalandira chithandizo. Mwa odwala 5042 omwe adayesedwa, omwe amadya magawo awiri a soya tsiku lililonse anali ndi mwayi wochepera 30% wobwereranso ndi kufa kuposa ena.
Sizinatsimikizidwe kuti soya ndi contraindicated kwa anthu akuvutika. Koma mu hypothyroidism, chithokomiro sichitulutsa mahomoni okwanira, ndipo mankhwala a soya amatha kuchepetsa kuyamwa kwa zowonjezera. Pankhaniyi, dokotala akhoza, ngati kuli kofunikira, kusintha mlingo wa mankhwala omwe atengedwa.
Tiyenera kukumbukira kuti soya amatha kukhala ngati ming'oma, kuyabwa, mphuno kapena kupuma movutikira. Kwa anthu ena, izi zimangowoneka ndi kudya kwambiri kwa soya. Zovuta za soya za ana nthawi zambiri zimatha ndi zaka. Koma munthu wamkulu angakhale ndi zizindikiro zomwe sizinalipo kale. Mankhwala a soya amatha kuyezetsa kuchipatala poyesa khungu ndi kuyezetsa magazi.
Kusankha kwa soya kuyenera kupangidwa mokomera. Kupanga nyama m'malo nthawi zambiri zochokera m'zigawo za soya mapuloteni kuganizira, ndi mankhwala amachotsa zachilengedwe, analengedwa ndi chilengedwe, nyemba.