{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,5]],"date-time":"2026-10-05T14:47:56Z","timestamp":1791211676725,"version":"4.1.0"},"reference-count":23,"publisher":"Cambridge University Press (CUP)","issue":"4","license":[{"start":{"date-parts":[[2007,1,2]],"date-time":"2007-01-02T00:00:00Z","timestamp":1167696000000},"content-version":"unspecified","delay-in-days":1980,"URL":"https:\/\/www.cambridge.org\/core\/terms"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Public Health Nutr."],"published-print":{"date-parts":[[2001,8]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec id=\"S1368980001000854_sec01\"><jats:title>Aim:<\/jats:title><jats:p>To study the ecological variation of intake of cassava foods and dietary cyanide load.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980001000854_sec02\"><jats:title>Design:<\/jats:title><jats:p>Ecological study design.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980001000854_sec03\"><jats:title>Setting:<\/jats:title><jats:p>Five communities in south-western Nigeria where tropical ataxic neuropathy (TAN) was described as endemic (area A), 11 communities in south-western Nigeria where TAN was described as absent (area B), and five communities in northern Nigeria (area C).<\/jats:p><\/jats:sec><jats:sec id=\"S1368980001000854_sec04\"><jats:title>Subjects:<\/jats:title><jats:p>Subjects were randomly sampled from selected communities. Intake of cassava foods was estimated from dietary history and dietary cyanide load was estimated from urine thiocyanate concentrations. Residual cyanogens in cassava food samples from the community markets were determined.<\/jats:p><\/jats:sec><jats:sec id=\"S1368980001000854_sec05\"><jats:title>Results:<\/jats:title><jats:p>In total, 1272 subjects from 21 communities \u2013 238 from area A, 659 from area B and 375 from area C \u2013 were selected. Intake of cassava food per person per week was 17 meals in area A, 10 meals in area B, and one meal in area C. Geometrical mean urine thiocyanate concentrations were 73 \u03bcmol l<jats:sup>\u22121<\/jats:sup>, 51 \u03bcmol l<jats:sup>\u22121<\/jats:sup> and 17 \u03bcmol l<jats:sup>\u22121<\/jats:sup> in areas A, B and C, respectively. Mean residual cyanogen content in cassava food samples was 16 mg HCN eq kg<jats:sup>\u22121<\/jats:sup> (confidence interval (CI) 13\u201318) in area A, and 13 mg HCN eq kg<jats:sup>\u22121<\/jats:sup> in area B (CI 11\u201314).<\/jats:p><\/jats:sec><jats:sec id=\"S1368980001000854_sec06\"><jats:title>Conclusion:<\/jats:title><jats:p>This study shows that the intake of cassava foods and dietary cyanide load is high in several communities in south-western Nigeria, predominantly in communities where TAN has been reported. Dietary cyanide load in these communities appears to be determined by the combination of frequency of intake and cyanogen content of cassava foods. Measures to improve the effectiveness of removal of cyanogen from cassava roots during processing are needed in the affected communities.<\/jats:p><\/jats:sec>","DOI":"10.1079\/phn2001127","type":"journal-article","created":{"date-parts":[[2008,6,3]],"date-time":"2008-06-03T15:05:33Z","timestamp":1212505533000},"page":"871-876","source":"Crossref","is-referenced-by-count":34,"title":["Ecological variation of intake of cassava food and dietary cyanide load in Nigerian communities"],"prefix":"10.1017","volume":"4","author":[{"given":"AO","family":"Onabolu","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"OSA","family":"Oluwole","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"M","family":"Bokanga","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"H","family":"Rosling","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"56","published-online":{"date-parts":[[2007,1,2]]},"reference":[{"key":"S1368980001000854_ref009","doi-asserted-by":"publisher","DOI":"10.1016\/0035-9203(71)90156-8"},{"key":"S1368980001000854_ref002","doi-asserted-by":"publisher","DOI":"10.1093\/jxb\/46.7.731"},{"key":"S1368980001000854_ref014","first-page":"58","article-title":"Endemic neuropathies in the Epe district of southern Nigeria","volume":"7","author":"Money","year":"1958","journal-title":"West Afr. 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Sci."}],"container-title":["Public Health Nutrition"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/www.cambridge.org\/core\/services\/aop-cambridge-core\/content\/view\/S1368980001000854","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2019,5,7]],"date-time":"2019-05-07T23:29:58Z","timestamp":1557271798000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.cambridge.org\/core\/product\/identifier\/S1368980001000854\/type\/journal_article"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2001,8]]},"references-count":23,"journal-issue":{"issue":"4","published-print":{"date-parts":[[2001,8]]}},"alternative-id":["S1368980001000854"],"URL":"https:\/\/doi.org\/10.1079\/phn2001127","relation":{},"ISSN":["1368-9800","1475-2727"],"issn-type":[{"value":"1368-9800","type":"print"},{"value":"1475-2727","type":"electronic"}],"subject":[],"published":{"date-parts":[[2001,8]]}}}