Journal: European Journal of Nutrition

Abbreviation

Eur J Nutr

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Springer

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ISSN

1436-6207
1436-6215

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Publications 1 - 10 of 26
  • A multi-centre pilot study of iodine status in UK schoolchildren, aged 8–10 years
    Item type: Journal Article
    Bath, Sarah C.; Combet, Emilie; Scully, Patrick; et al. (2016)
    European Journal of Nutrition
    Purpose Iodine, as an essential constituent of thyroid hormones, is required for brain development. Iodine status is low in some UK population groups, notably in teenage girls, women of childbearing age and pregnant women. We aimed to assess iodine status of UK schoolchildren as there are no data on children below 14 years of age. Methods Children (boys and girls) aged 8–10 years were recruited to a cross-sectional study from schools in three areas of the UK (Omagh, Northern Ireland; Glasgow, Scotland, and Guildford, South-East England). Spot urine samples, for measurement of urinary iodine concentration, were collected in the winter months (November 2012 to March 2013) and in the summer, in Omagh only (September 2013). A food frequency questionnaire was completed. Results A total of 168 schoolchildren provided 165 urine samples. The median urinary iodine concentration was 161 µg/L in winter samples (n = 134) and 127 µg/L in summer samples (n = 31). The median urinary iodine concentration for the whole group was 144 µg/L, weighted to account for the unequal proportion of samples from the two seasons. The children are classified as iodine-sufficient by WHO criteria (100–199 µg/L), even in the summer. Milk intake was positively associated with iodine status. Conclusions This pilot study suggests that iodine deficiency is unlikely to be a problem in UK children aged 8–10 years. This could be a result of higher intake of milk, the principal UK dietary iodine source, in this age group than in teenagers and adults. Further assessment of iodine status in a representative sample of UK schoolchildren is required.
  • Digestibility of resistant starch containing preparations using two in vitro models
    Item type: Journal Article
    Fässler, Caroline; Arrigoni, Eva; Venema, Koen; et al. (2006)
    European Journal of Nutrition
  • Lebanese children are iodine deficient and urinary sodium and fluoride excretion are weak positive predictors of urinary iodine
    Item type: Journal Article
    Ghattas, Hala; Francis, Sirine; El Mallah, Carla; et al. (2017)
    European Journal of Nutrition
  • Exploration of thyroglobulin as a biomarker of iodine status in iodine-sufficient and mildly iodine-deficient pregnant women
    Item type: Journal Article
    Dineva, Mariana; Rayman, Margaret P.; Levie, Deborah; et al. (2023)
    European Journal of Nutrition
    PurposeUrinary iodine-to-creatinine ratio (UI/Creat) reflects recent iodine intake but has limitations for assessing habitual intake. Thyroglobulin (Tg) concentration, which increases with thyroid size, appears to be an indicator of longer-term iodine status in children and adults, however, less is known in pregnancy. This study investigated the determinants of serum-Tg in pregnancy and its use as an iodine-status biomarker in settings of iodine-sufficiency and mild-to-moderate deficiency.MethodsStored blood samples and existing data from pregnant women from the Netherlands-based Generation R (iodine-sufficient) and the Spain-based INMA (mildly-to-moderately iodine-deficient) cohorts were used. Serum-Tg and iodine status (as spot-urine UI/Creat) were measured at median 13 gestational weeks. Using regression models, maternal socio-demographics, diet and iodine-supplement use were investigated as determinants of serum-Tg, as well as the association between UI/Creat and serum-Tg.ResultsMedian serum-Tg was 11.1 ng/ml in Generation R (n = 3548) and 11.5 ng/ml in INMA (n = 1168). When using 150 mu g/g threshold for iodine deficiency, serum-Tg was higher in women with UI/Creat < 150 vs >= 150 mu g/g (Generation R, 12.0 vs 10.4 ng/ml, P = 0.010; INMA, 12.8 vs 10.4 ng/ml, P < 0.001); after confounder adjustment, serum-Tg was still higher when UI/Creat < 150 mu g/g (regression coefficients: Generation R, B = 0.111, P = 0.050; INMA, B = 0.157, P = 0.010). Iodine-supplement use and milk intake were negatively associated with serum-Tg, whereas smoking was positively associated.ConclusionThe association between iodine status and serum-Tg was stronger in the iodine-deficient cohort, than in the iodine-sufficient cohort. Serum-Tg might be a complementary (to UI/Creat) biomarker of iodine status in pregnancy but further evidence is needed.
  • Effectiveness of increased salt iodine concentration on iodine status: trend analysis of cross-sectional national studies in Switzerland
    Item type: Journal Article
    Andersson, Maria; Hunziker, Sandra; Fingerhut, Ralph; et al. (2020)
    European Journal of Nutrition
  • Pediatric adiposity stabilized in Switzerland between 1999 and 2012
    Item type: Journal Article
    Murer, Stefanie B.; Saarsalu, Siret; Zimmermann, Michael B.; et al. (2014)
    European Journal of Nutrition
    Purpose Several countries have recently reported stabilization and/or a decrease in the prevalence of pediatric obesity. However, systematic, repeated national monitoring studies are scarce, and it is unclear whether this trend would be sustained. The objective was to present the latest overweight and obesity prevalence in Swiss children and to investigate trends in prevalence from 1999 to 2012. Methods Using probability-proportionate-to-size cluster sampling, nationally representative samples of children aged 6–12 years were recruited in 1999 (n = 594), 2002 (n = 2,493), 2004 (n = 328), 2007 (n = 2,218), 2009 (n = 907), and 2012 (n = 2,963). Height and weight were measured to calculate BMI (kg/m2). BMI cutoffs proposed by the Centers for Disease Control and Prevention (CDC) and by the International Obesity Task Force were used to determine the prevalence of overweight (excluding obesity) and obesity. Waist circumference was measured in 2007 and 2012, and multiple skinfold thicknesses assessed in 2002 and 2012. Results Using the CDC criteria, prevalences of overweight and obesity in 2012 were 11.9 % (95 % CI 10.7–13.1) and 7.1 % (95 % CI 6.2–8.0), respectively, and did not change between 1999 and 2012 (β = −0.144, p = 0.293 and β = −0.063, p = 0.552, respectively). Boys had significantly higher obesity prevalence than girls in 2007 (5.6 vs. 3.4 %) and 2012 (8.1 vs. 5.9 %). Percentage of children with excess waist circumference and body fat percentage did not differ between 2007 and 2012, and 2002 and 2012, respectively. Conclusion Our data indicate the prevalence of childhood adiposity in Switzerland stabilized between 1999 and 2012, but ≈1 in 5 children remain overweight or obese and further efforts are needed to control the epidemic.
  • The effect of a natural polyphenol supplement on iron absorption in adults with hereditary hemochromatosis
    Item type: Journal Article
    Buerkli, Simone; Salvioni, Laura; Koller, Natalie; et al. (2022)
    European Journal of Nutrition
    Objectives We developed a natural polyphenol supplement that strongly chelates iron in vitro and assessed its effect on non-heme iron absorption in patients with hereditary hemochromatosis (HH). Methods We performed in vitro iron digestion experiments to determine iron precipitation by 12 polyphenol-rich dietary sources, and formulated a polyphenol supplement (PPS) containing black tea powder, cocoa powder and grape juice extract. In a multi-center, single-blind, placebo-controlled cross-over study, we assessed the effect of the PPS on iron absorption from an extrinsically labelled test meal and test drink in patients (n = 14) with HH homozygous for the p.C282Y variant in the HFE gene. We measured fractional iron absorption (FIA) as stable iron isotope incorporation into erythrocytes. Results Black tea powder, cocoa powder and grape juice extract most effectively precipitated iron in vitro. A PPS mixture of these three extracts precipitated ~ 80% of iron when 2 g was added to a 500 g iron solution containing 20 µg Fe/g. In the iron absorption study, the PPS reduced FIA by ~ 40%: FIA from the meal consumed with the PPS was lower (3.01% (1.60, 5.64)) than with placebo (5.21% (3.92, 6.92)) (p = 0.026)), and FIA from the test drink with the PPS was lower (10.3% (7.29 14.6)) than with placebo (16.9% (12.8 22.2)) (p = 0.002). Conclusion Our results indicate that when taken with meals, this natural PPS can decrease dietary iron absorption, and might thereby reduce body iron accumulation and the frequency of phlebotomy in patients with HH. Trial registry: clinicaltrials.gov (registration date: 9.6.2019, NCT03990181).
  • Disturbed eating at high altitude
    Item type: Journal Article
    Aeberli, Isabelle; Erb, Annina; Spliethoff, Kerstin; et al. (2013)
    European Journal of Nutrition
  • Contribution of plant-based dairy and fish alternatives to iodine nutrition in the Swiss diet: a Swiss Market Survey
    Item type: Journal Article
    Khalil, Zulekha Abbas; Herter-Aeberli, Isabelle (2024)
    European Journal of Nutrition
    Purpose: With dairy products and fish being major sources of iodine in Switzerland, the growing popularity of plant-based alternatives may impact iodine nutrition. This study aimed to assess the iodine content in plant-based dairy and fish alternatives available in the Swiss market and compare them with conventional products. Methods: In 2022, a market survey was conducted in Zurich, Switzerland, to identify the plant-based dairy and fish alternatives available and assess their iodine content. To evaluate the impact of plant-based alternatives on iodine consumption in Switzerland, we modeled dietary scenarios by substituting the intake of dairy and fish items with plant-based alternatives. In addition, we investigated fortification with calcium, vitamins B2, B12, and D. Results: Out of 477 identified products, only four milk-alternative products were iodine fortified (median iodine concentration: 22.5 µg/100 ml). The median iodine concentration in unfortified plant-based alternatives was negligible compared to conventional dairy and fish products (milk: 0.21 vs 9.5 µg/100 ml; yogurt 0.36 vs 6.1 µg/100 g; cheese: 0.10 vs 20 µg/100 g; fish 0.50 vs 44 mu g/100 g). Three portions of dairy per day as recommended by the Swiss Food Pyramid provide 25% of the RDA for iodine (150 µg/day), whereas substituting those with unfortified alternatives provides only 0.7% of the RDA. Conclusion: Only four out of 477 plant-based alternative products are iodine fortified in the Swiss market. Thus, the risk for consumers to miss out on the ca. 25% of the RDA for iodine by consuming plant-based alternatives is high, placing them at a risk for inadequate iodine intake.
  • Improving reporting standards in nutrition trials: a collaboration between FENS and the EQUATOR Network
    Item type: Other Journal Item
    Schlussel, Michael M.; Rigutto-Farebrother, Jessica (2024)
    European Journal of Nutrition
Publications 1 - 10 of 26