Comparison of standardised dietary folate intake across ten countries participating in the European Prospective Investigation into Cancer and Nutrition
Jin Young Park,Geneviève Nicolas,Heinz Freisling,Carine Biessy,Augustin Scalbert,Isabelle Romieu,Veronique Chajes,Shu Chun Chuang,Ulrika Ericson,Peter Wallström,Martine M. Ros,Petra H.M. Peeters,Amalia Mattiello,Domenico Palli,José María Huerta,Pilar Amiano,Jytte Halkjær,Christina C. Dahm,Antonia Trichopoulou,Philippos Orfanos,Birgit Teucher,Silke Feller,Guri Skeie,Dagrun Engeset,Marie-Christine Boutron-Ruault,Françoise Clavel-Chapelon,Francesca L. Crowe,Kay-Tee Khaw,Paolo Vineis,Nadia Slimani +29 more
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TLDR
These first comparisons of standardised dietary folate intakes across different European populations show moderate regional differences (except the UK health conscious group), and variation by sex, educational level, smoking and alcohol-drinking status, and supplement use.Abstract:
Folate plays an important role in the synthesis and methylation of DNA as a cofactor in one-carbon metabolism. Inadequate folate intake has been linked to adverse health events. However, comparable information on dietary folate intake across European countries has never been reported. The objective of the present study was to describe the dietary folate intake and its food sources in ten countries in the European Prospective Investigation into Cancer and Nutrition (EPIC) study. A cross-sectional analysis was conducted in 36 034 participants (aged 35-74 years) who completed a single 24 h dietary recall using a computerised interview software program, EPIC-Soft (R) (International Agency for Research on Cancer, Lyon). Dietary folate intake was estimated using the standardised EPIC Nutrient DataBase, adjusted for age, energy intake, weight and height and weighted by season and day of recall. Adjusted mean dietary folate intake in most centres ranged from 250 to 350 mu g/d in men and 200 to 300 mu g/d in women. Folate intake tended to be lower among current smokers and heavier alcohol drinkers and to increase with educational level, especially in women. Supplement users (any types) were likely to report higher dietary folate intake in most centres. Vegetables, cereals and fruits, nuts and seeds were the main contributors to folate intake. Nonetheless, the type and pattern of consumption of these main food items varied across the centres. These first comparisons of standardised dietary folate intakes across different European populations show moderate regional differences (except the UK health conscious group), and variation by sex, educational level, smoking and alcohol-drinking status, and supplement use.read more
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Folate deficiency causes uracil misincorporation into human DNA and chromosome breakage: Implications for cancer and neuronal damage
Benjamin C. Blount,Matthew M. Mack,Carol M. Wehr,James T. MacGregor,Robert A. Hiatt,Gene Wang,Sunitha N. Wickramasinghe,Richard B. Everson,Bruce N. Ames +8 more
TL;DR: Both high DNA uracil levels and elevated micronucleus frequency (a measure of chromosome breaks) are reversed by folate administration, which could contribute to the increased risk of cancer and cognitive defects associated with folate deficiency in humans.
Journal ArticleDOI
Folic acid for the prevention of colorectal adenomas: a randomized clinical trial.
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Journal Article
Folic acid for the prevention of colorectal adenomas: A randomized clinical trial. Editorial
Bernard F. Cole,John A. Baron,Robert S. Sandier,Robert W. Haile,Dennis J. Ahnen,Robert S. Bresalier,Gail McKeown-Eyssen,Robert W. Summers,Richard I. Rothstein,Carol A. Burke,Dale C. Snover,Timothy R. Church,John I. Allen,Douglas J. Robertson,Gerald J. Beck,John H. Bond,Tim Byers,Jack S. Mandel,Leila A. Mott,Loretta H. Pearson,Elizabeth L. Barry,Judy R. Rees,Norman E. Marcon,Fred Saibil,Per Magne Ueland,E. Robert Greenberg,Cornelia M. Ulrich,John D. Potter +27 more
TL;DR: Folic acid at 1 mg/d does not reduce colorectal adenoma risk and is associated with higher risks of having 3 or more adenomas and of noncolorectAL cancers.