Relatives of Ackee, including lychee, longan, and rambutan, can contain enough α-(methylenecyclopropyl)glycine, a homologue of hypoglycin A, in their fruit to cause hypoglycemic encephalopathy in undernourished children, when consumed in large quantities.
ɹˈɛlətˌɪvz ʌv ˈækiː, ɪŋklˈuːdɪŋ lˈiːtʃiː, lˈɔŋɡən, ænd ɹˈæmbətˌæn, kæn kəntˈeɪn ɪnˈʌf ˈælfə mˌɛθaɪlnˌɛsaɪkləpɹˈoʊpəl ɡlˈaɪsiːn, ɐ hˈɑːməlˌɑːɡ ʌv hˌaɪpoʊɡlˈaɪsɪn ˈeɪ, ɪn ðɛɹ fɹˈuːt tə kˈɔːz hˌaɪpoʊɡlaɪsˈiːmɪk ɛnsˌɛfɐlˈɑːpəθi ɪn ˌʌndɚnˈɜːɹɪʃt tʃˈɪldɹən, wˌɛn kənsˈuːmd ɪn lˈɑːɹdʒ kwˈɔntᵻɾiz.