ɪn tˈuː θˈaʊzənd ɪlˈɛvən, ɐ ɹᵻvjˈuː baɪ ðə jˌʊɹɹəpˈiən fˈuːd sˈeɪfti ɐθˈɔːɹɪɾi kəŋklˈuːdᵻd ðæt bɹˈaʊn ˌɛfkˈeɪ wʌz nˌoʊ lˈɑːŋɡɚ jˈuːzd ænd ðɪ ɐθˈɔːɹɪɾi kʊd nˌɑːt kəŋklˈuːd ɔnðə sˈeɪfti ʌvðə sˈʌbstəns dˈuː tə ðə dᵻfˈɪʃənsiz ɪnðɪ ɐvˈeɪləbəl tɑːksˈɪsᵻɾi dˈeɪɾə.
In 2011, a review by the European Food Safety Authority concluded that Brown FK was no longer used and the Authority could not conclude on the safety of the substance due to the deficiencies in the available toxicity data.