Oettlé G J, Segal I
Dis Colon Rectum. 1985 Oct;28(10):717-20. doi: 10.1007/BF02560281.
Despite a low daily dietary fiber intake, an urbanized black African population in southern Africa has a low incidence of those diseases associated with fiber deficiency. Stool weights, defecation frequencies, and transit times in this group are much closer to those of westernized whites than to rural blacks.
尽管每日膳食纤维摄入量较低，但南部非洲城市化的非洲黑人人群中，与纤维缺乏相关疾病的发病率较低。该群体的粪便重量、排便频率和转运时间与西方化的白人更为接近，而非农村黑人。
