--- res: bibo_abstract: - 'The extent to which the quality of dietary carbohydrates (CHO) changes throughout puberty is not known. We analysed trends in the quantity and quality of CHO intake among German adolescents by separately examining trends during puberty (pubertal trends) and trends in CHO intake from 1988 to 2007 (secular trends). Linear mixed-effects regression analyses were performed in 216 participants of the Dortmund Nutritional and Anthropometric Longitudinally Designed Study who had provided weighed 3 d dietary records at the onset of the pubertal growth spurt (defined by age at take-off) and over the subsequent 4 years. Over the course of puberty, CHO quality changed little: added sugar intake from beverages increased in girls (0·25 (se 0·12) % energy (% E)/year, P = 0·04) and added sugar intake from sweets decreased in both sexes (boys: − 0·22 (se 0·11) % E/year, P = 0·049; girls: − 0·20 (se 0·10) % E/year, P = 0·04). For both sexes, significant upward secular trends were observed for CHO (% E), glycaemic load (g/MJ) and added sugar intakes from sources other than sweets and soft drinks (% E), while absolute fibre intake (g/d) decreased (P ≤ 0·04). Concomitant increases in total added sugar intake (% E) and decreases in fibre and whole-grain densities (g/MJ) (P = 0·001–0·02) were confined to boys only. The quality of dietary CHO consumed by healthy German adolescents shows notable secular declines, but does not change markedly during puberty. Public health initiatives should be tailored to improve the overall quality of CHO nutrition.@eng' bibo_authorlist: - foaf_Person: foaf_givenName: Guo foaf_name: Cheng, Guo foaf_surname: Cheng - foaf_Person: foaf_givenName: Lars foaf_name: Libuda, Lars foaf_surname: Libuda foaf_workInfoHomepage: http://www.librecat.org/personId=88682 orcid: 0000-0003-1603-3133 - foaf_Person: foaf_givenName: Nadina foaf_name: Karaolis-Danckert, Nadina foaf_surname: Karaolis-Danckert - foaf_Person: foaf_givenName: Ute foaf_name: Alexy, Ute foaf_surname: Alexy - foaf_Person: foaf_givenName: Katja foaf_name: Bolzenius, Katja foaf_surname: Bolzenius - foaf_Person: foaf_givenName: Thomas foaf_name: Remer, Thomas foaf_surname: Remer - foaf_Person: foaf_givenName: Anette foaf_name: Buyken, Anette foaf_surname: Buyken foaf_workInfoHomepage: http://www.librecat.org/personId=65985 bibo_doi: 10.1017/s0007114510002278 dct_date: 2010^xs_gYear dct_isPartOf: - http://id.crossref.org/issn/0007-1145 - http://id.crossref.org/issn/1475-2662 dct_language: eng dct_title: 'Trends in dietary carbohydrate quality during puberty from 1988 to 2007: a cause for concern?@' ...