Safaara guɗu (kaaseer) hoolkisaama e ñawɓe heewɓe wondunooɓe e nguɗu jofe, nguɗu tektekol mawngol, nguɗu enndu, walla nguɗu goddol (tiroyid), tee FDA* heɓtinii mo e lewru noowammbar 2018. Safaara oo wiyetee ko Vitrakvi. E wiyde antampiris toppitiiɗo njeeygu safaara kaa, 81% (joyaɓe 4) ñawɓe enndunooɓe safaara kaa, ñawannde mum en deeɓtii, heen 17% (hedde joyaɓal) cellii ɗeɗew. Caɗeele ɗee tan, ko omo tiiɗi no feewi, sibu ko 346 000 oroo (142 miliyoŋ ugiyya gadano) hitaande kala.
*FDA (Food and Drug Administration) woni Njuɓɓudi Amerik toppitiindi geɗe ñaamdu e safaara)
