haʊˈɛvɚ, ðə ɹᵻkwˈaɪɚmənt fɔːɹ sˈʌtʃ dˈaɪətɚɹi ɹᵻstɹˈɪkʃənz ɪz tˈɪpɪkli ʌnnˈɛsᵻsɚɹi fɔːɹ nˈaɪnti nˈaɪn pɚsˈɛnt ʌv ˈɔːl kˈeɪsᵻz ʌv hˌɪstɪdaɪnˈiːmiə.
However, the requirement for such dietary restrictions is typically unnecessary for 99% of all cases of histidinemia.