Na ho ja vithamine A ho fokotsa kotsi ea mofets'e oa letlalo?

Lintlha-kholo Ts'ebetsong ea morao-rao ea tlhaiso-leseling e tsoang ho banna le basali ba United States, ba nkileng karolo liphuputsong tse peli tse kholo, tsa nako e telele tsa ho shebisisa, bafuputsi ba ile ba lekola botsoalle bo teng lipakeng tsa phepelo ea tlhaho ea vithamine A (Retinol) ea tlhaho le kotsi ea likokoana-hloko ...