ðə "ˈæsɪdˈæʃ" haɪpˈɑːθəsˌɪs klˈeɪmd ðæt ɛksˈɛs dˈaɪətɚɹi pɹədˈʌkʃən ʌv ˈæsɪd wʌzɐ ɹˈɪsk fˈæktɚ fɔːɹ ˌɑːstɪˌɑːpoːɹˈoʊsɪs, bˌʌt ðə saɪəntˈɪfɪk ˈɛvɪdəns dʌznˌɑːt səpˈoːɹt ðɪs haɪpˈɑːθəsˌɪs.
The "acid-ash" hypothesis claimed that excess dietary production of acid was a risk factor for osteoporosis, but the scientific evidence does not support this hypothesis.