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Kelliher L, Kiely ME, Hennessy Á. Development and validation of a food frequency questionnaire to assess habitual iodine intake among women of childbearing age. J Hum Nutr Diet 2024; 37:633-642. [PMID: 38368606 DOI: 10.1111/jhn.13289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2023] [Revised: 01/15/2024] [Accepted: 01/23/2024] [Indexed: 02/20/2024]
Abstract
BACKGROUND Adequate iodine status is critical for thyroid hormone synthesis, which is essential for foetal brain development. Suboptimal iodine status has been reported in young women across Europe. Although urinary iodine concentration (UIC) is a good indicator of recent exposure, it does not reflect habitual iodine intake. This study aimed to develop and validate an iodine-specific food frequency questionnaire (I-FFQ) to assess habitual intake in Irish women aged 18-50 years. METHODS A 47-item interviewer-administered I-FFQ, informed by national food consumption data on Irish women aged 18-35 years, was developed and validated in a study of 100 nonpregnant women using a 4-day weighed food diary (FD) and UIC as the reference methods. Correlation, cross-classification and Bland-Altman analyses were used to assess agreement and bias between the I-FFQ and FD. Validity coefficients were calculated using the method of triads. RESULTS Median (interquartile range [IQR]) UIC was 82 (49, 139) µg/L. Median (IQR) intakes were 161 (106, 217) and 133 (98, 182) µg/day for the I-FFQ and FD, respectively (p = 0.001). Estimates were moderately correlated (r = 0.434), and the I-FFQ classified 89% of participants into the same or adjacent tertile of intake as the FD. Validity coefficients for the I-FFQ, FD and UIC were 0.542, 0.800 and 0.228, respectively. Though repeatability analyses 10 weeks later (n = 69) showed slight differences in estimates of intake (I-FFQ1: 164 (104, 210) µg/day; I-FFQ2: 132 (67, 237) µg/day), intakes were highly correlated between administrations (r = 0.627, p = 0.001). CONCLUSIONS The I-FFQ provides a reasonable estimate of habitual iodine intake in young women.
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Affiliation(s)
- Lisa Kelliher
- School of Food and Nutritional Sciences, University College Cork, Cork, Republic of Ireland
- INFANT Research Centre, University College Cork, Cork, Republic of Ireland
| | - Mairead E Kiely
- School of Food and Nutritional Sciences, University College Cork, Cork, Republic of Ireland
- INFANT Research Centre, University College Cork, Cork, Republic of Ireland
| | - Áine Hennessy
- School of Food and Nutritional Sciences, University College Cork, Cork, Republic of Ireland
- INFANT Research Centre, University College Cork, Cork, Republic of Ireland
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Azorín I, Madrid J, Martínez-Miró S, López M, López MB, López MJ, Hernández F. Combined Supplementation of Two Selenium Forms (Organic and Inorganic) and Iodine in Dairy Cows' Diet to Obtain Enriched Milk, Cheese, and Yogurt. Animals (Basel) 2024; 14:1373. [PMID: 38731376 PMCID: PMC11083049 DOI: 10.3390/ani14091373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2024] [Revised: 04/27/2024] [Accepted: 04/30/2024] [Indexed: 05/13/2024] Open
Abstract
This study evaluated the effects of dietary supplementation in dairy cows with two Se forms (organic and inorganic) and I at the maximum levels permitted in the European Union, with the aim to obtain naturally enriched milk and derived products. A total of 20 Holstein Friesian cows in lactation were fed 2 diets for 64 days: a control diet with a supply of 0.57 mg of inorganic Se and 0.57 mg of I per kg of ration in dry matter (DM), and an experimental diet (SeI) with a supply of 0.34 mg of inorganic Se, 0.23 mg of organic Se, and 5.68 mg of I per kg of ration in DM. The SeI diet did not modify the performance or, in general, the metabolic profile of cows. Se and I levels in milk were affected by diet type and time of measurement (p < 0.01). Thus, a marked increase of both microminerals was evident between the beginning and the end of the test, when the SeI diet was administered. For Se, this increase ranged from 1.95 to 3.29 μg/100 g of milk; and for I, from 19.69 to 110.06 μg/100 g of milk. The SeI diet increased (p < 0.01) the Se and I content in the cheese, reaching levels of 16.4 μg/100 g for Se and 269.7 μg/100 g for I. An increase in I was observed in yogurt from the SeI diet (p < 0.001). The supplementation of two forms of Se and I in the cows' ration, at the levels evaluated, produced milk and dairy products enriched in these microelements without altering their quality parameters. However, a responsible intake of these products is necessary to avoid risks of deficiencies or excesses that could negatively affect the health of consumers.
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Affiliation(s)
- Irene Azorín
- Department of Animal Production, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (I.A.); (S.M.-M.); (M.L.); (M.J.L.); (F.H.)
| | - Josefa Madrid
- Department of Animal Production, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (I.A.); (S.M.-M.); (M.L.); (M.J.L.); (F.H.)
| | - Silvia Martínez-Miró
- Department of Animal Production, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (I.A.); (S.M.-M.); (M.L.); (M.J.L.); (F.H.)
| | - Marina López
- Department of Animal Production, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (I.A.); (S.M.-M.); (M.L.); (M.J.L.); (F.H.)
| | - María Belén López
- Department of Food Technology, Nutrition and Bromatology, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain;
| | - Miguel José López
- Department of Animal Production, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (I.A.); (S.M.-M.); (M.L.); (M.J.L.); (F.H.)
| | - Fuensanta Hernández
- Department of Animal Production, Faculty of Veterinary, Campus of International Excellence “Campus Mare Nostrum”, University of Murcia, 30100 Murcia, Spain; (I.A.); (S.M.-M.); (M.L.); (M.J.L.); (F.H.)
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Lundquist H, Hess J, Comeau M, Slavin J. Cow milk is an important source of iodine for prenatal health, and switching to plant-based milk can lead to iodine insufficiencies. JDS COMMUNICATIONS 2024; 5:181-184. [PMID: 38646574 PMCID: PMC11026965 DOI: 10.3168/jdsc.2023-0424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/06/2023] [Accepted: 12/10/2023] [Indexed: 04/23/2024]
Abstract
Iodine insufficiencies are common among many populations, particularly pregnant women. One of the main functions of iodine is making thyroid hormone. The 2 main hormones that iodine influences are triiodothyronine and thyroxine. Thyroid hormone affects metabolism of most tissues. For the average adult, the recommended dietary allowance (RDA) for iodine is 150 µg. During certain stages of life, such as pregnancy, lactation, and infancy, the importance of iodine is even greater as it supports brain, bone, and organ development. The RDA for iodine during pregnancy is 220 µg and, during breastfeeding, the RDA is 290 µg. Consuming enough iodine in the diet during pregnancy helps support fetal neurodevelopment. Iodine is found in several food sources such as seafood and iodized salt; however, dairy products are one of the major sources of iodine in American diets. It is important to note that only bovine milk products are rich in this mineral. One cup of milk provides 39% and 57% of the daily iodine needs for the average adult woman and pregnant woman, respectively. As the Dietary Guidelines for Americans (DGA) recommend limiting sodium intake, which includes iodized salt, dairy may be an especially important source of iodine. However, according to the USDA, about 90% of the US population does not meet the dairy recommendations presented in the DGA. In recent years, plant-based diets have received a lot of attention. A market for plant-based milk alternatives has grown and includes a variety of options such as almond, soy, and oat milk. Plant-based milks do not naturally contain iodine and are typically not fortified with iodine. Women of childbearing age who drink plant-based milks instead of cow milk have lower urinary iodine concentrations than women who consume cow milk. This review will focus on the importance of iodine in the diet to support prenatal health, lactation, and infant health.
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Affiliation(s)
- Hallie Lundquist
- Department of Food Science and Nutrition, College of Food Agricultural and Natural Resource Sciences, University of Minnesota–Twin Cities, St. Paul, MN 55108
| | - Julie Hess
- United States Department of Agriculture, Grand Forks, ND 58203
| | - Madeline Comeau
- United States Department of Agriculture, Grand Forks, ND 58203
| | - Joanne Slavin
- Department of Food Science and Nutrition, College of Food Agricultural and Natural Resource Sciences, University of Minnesota–Twin Cities, St. Paul, MN 55108
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Sizova EA, Miroshnikov SA, Notova SV, Tinkov AA, Skalny AV. Serum Mineral Levels in Dairy Cows Transiting from Feedlot to Pasture. Biol Trace Elem Res 2024; 202:504-512. [PMID: 37183220 DOI: 10.1007/s12011-023-03687-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 04/27/2023] [Indexed: 05/16/2023]
Abstract
The objective of the present study was to evaluate trace element and minerals levels in the serum of cows transiting from diets consumed in feedlot or under grazing. A total of 30 healthy 5-6 years old cows of the Red Steppe breed were involved in the study. Blood samples were collected at the end of the feedlot period (end of April) and during the pasture period (end of June). Serum essential trace element and mineral levels were evaluated using inductively coupled plasma mass spectrometry. The obtained data demonstrate that serum K levels in cows during the feedlot period exceeded those in the pasture period by 50%, whereas serum P values in the pasture period were significantly higher than in the feedlot period by 20%. Serum Li levels in cows during the feedlot feeding period were nearly 3-fold higher than the respective values in a pasture period. In addition, serum B, Sr, and Zn concentrations in cows during a pasture period exceeded those observed upon feedlot feeding by 38%, 40%, and 13%, respectively. In contrast, serum I and V levels in a feedlot period were 32% and 77% higher when compared to the respective values in a pasture period. Multiple regression analysis demonstrated that Cr, Cu, I, Na, and V are positively associated with feedlot feeding. At the same time, serum Zn and to a lesser extent Sr values were directly associated with the pasture period. Therefore, the results of the present study demonstrated that feedlot and pasture rations have a significant impact on trace element and mineral metabolism in dairy cows.
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Affiliation(s)
- Elena A Sizova
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
| | - Sergey A Miroshnikov
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
- Institute of Bioelementology, Orenburg State University, Orenburg, Russia
| | - Svetlana V Notova
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
- Institute of Bioelementology, Orenburg State University, Orenburg, Russia
| | - Alexey A Tinkov
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia
- Institute of Bioelementology, Orenburg State University, Orenburg, Russia
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia
| | - Anatoly V Skalny
- Federal Research Centre of Biological Systems and Agro-technologies of the Russian Academy of Sciences, Orenburg, Russia.
- Institute of Bioelementology, Orenburg State University, Orenburg, Russia.
- IM Sechenov First Moscow State Medical University (Sechenov University), Moscow, Russia.
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Teixeira JLDP, Rebellato AP, Fioravanti MIA, Milani RF, Morgano MA. Selenium in plant-based beverages: Total content, estimated bioaccessibility and contribution to daily intake. J Trace Elem Med Biol 2024; 81:127329. [PMID: 37924611 DOI: 10.1016/j.jtemb.2023.127329] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 10/09/2023] [Accepted: 10/21/2023] [Indexed: 11/06/2023]
Abstract
BACKGROUND The search for alternative protein sources has increased the consumption and commercialization of plant-based beverages (PBBs). This study aimed to determine the total Se content, estimate the bioaccessibility of selenium (Se) in commercial PBBs derived from different raw materials, and evaluate their contribution to the reference daily intake (RDI). METHODS An ultrasound assisted acid digestion method and ICP-MS was used to determine Se, and the INFOGEST method to estimate the bioaccessible percentages. Validation of this method was also performed, and the parameters obtained were: LOD and LOQ were 2.1 and 4.0 µg/kg, respectively. For accuracy, recovery percentages ranged from 99 % and 111 % (certified reference materials), and 95 % and 101 % (spiked experiments for bioaccessible extracts as recoveries). RESULTS The PBBs presented total Se content between 4 and 226 µg/kg. Bioaccessible percentages ranged from 63.5 % (mix of plant sources) to 95.9 % (produced with organic cashew nuts). Only one cashew nut PBBs supplied the daily demand of Se, representing 64.6 %, 75.3 % and 82.2 % of the RDI; for lactating and pregnant women, children (≥ 4 years) and adults, respectively. CONCLUSIONS The Se determination method through acid digestion assisted by ultrasound and ICP-MS was considered adequate for the PBBs samples. Se content varied according to the raw material used in sample preparation. High percentages (> 60 %) of bioaccessibility were observed and only one PBBs derived from organic cashew nuts supplied the recommended Se demand for different groups of individuals.
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Affiliation(s)
- José Luan da Paixão Teixeira
- Food Science and Quality Center, Institute of Food Technology, Av. Brazil, 2880, Jd. Chapadão, CEP.: 13070-178, Campinas, SP, Brazil.
| | - Ana Paula Rebellato
- Food Science and Quality Center, Institute of Food Technology, Av. Brazil, 2880, Jd. Chapadão, CEP.: 13070-178, Campinas, SP, Brazil
| | | | - Raquel Fernanda Milani
- Food Science and Quality Center, Institute of Food Technology, Av. Brazil, 2880, Jd. Chapadão, CEP.: 13070-178, Campinas, SP, Brazil
| | - Marcelo Antonio Morgano
- Food Science and Quality Center, Institute of Food Technology, Av. Brazil, 2880, Jd. Chapadão, CEP.: 13070-178, Campinas, SP, Brazil
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Niero G, Visentin G, Censi S, Righi F, Manuelian CL, Formigoni A, Mian C, Bérard J, Cassandro M, Penasa M, Moore S, Costa A, De Marchi M. Invited review: Iodine level in dairy products-A feed-to-fork overview. J Dairy Sci 2023; 106:2213-2229. [PMID: 36870838 DOI: 10.3168/jds.2022-22599] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2022] [Accepted: 11/21/2022] [Indexed: 03/06/2023]
Abstract
The theme of iodine in the dairy sector is of particular interest due to the involvement and the interconnection of several stakeholders along the dairy food chain. Iodine plays a fundamental role in animal nutrition and physiology, and in cattle it is an essential micronutrient during lactation and for fetal development and the calf's growth. Its correct use in food supplementation is crucial to guarantee the animal's recommended daily requirement to avoid excess intake and long-term toxicity. Milk iodine is fundamental for public health, being one of the major sources of iodine in Mediterranean and Western diets. Public authorities and the scientific community have made great efforts to address how and to what extent different drivers may affect milk iodine concentration. The scientific literature concurs that the amount of iodine administered through animal feed and mineral supplements is the most important factor affecting its concentration in milk of most common dairy species. Additionally, farming practices related to milking (e.g., use of iodized teat sanitizers), herd management (e.g., pasture vs. confinement), and other environmental factors (e.g., seasonality) have been identified as sources of variation of milk iodine concentration. Overall, the aim of this review is to provide a multilevel overview on the mechanisms that contribute to the iodine concentration of milk and dairy products.
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Affiliation(s)
- G Niero
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - G Visentin
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Italy
| | - S Censi
- Department of Medicine, Endocrinology Unit, University of Padova, 35121 Padova, Italy
| | - F Righi
- Department of Veterinary Science, University of Parma, Via del Taglio 10, 43126 Parma, Italy
| | - C L Manuelian
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - A Formigoni
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Italy
| | - C Mian
- Department of Medicine, Endocrinology Unit, University of Padova, 35121 Padova, Italy
| | - J Bérard
- Agroscope, Division Animal Production Systems and Animal Health, 1725 Posieux, Switzerland
| | - M Cassandro
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy; Italian Holstein, Brown and Jersey Association, Via Bergamo 292, 26100 Cremona, Italy
| | - M Penasa
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - S Moore
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
| | - A Costa
- Department of Veterinary Medical Sciences, Alma Mater Studiorum, University of Bologna, Via Tolara di Sopra 50, 40064 Ozzano dell'Emilia, Italy.
| | - M De Marchi
- Department of Agronomy, Food, Natural resources, Animals and Environment, University of Padova, Viale dell'Università 16, 35020 Legnaro, Italy
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Calcaterra V, Mameli C, Rossi V, Massini G, Gambino M, Baldassarre P, Zuccotti G. The Iodine Rush: Over- or Under-Iodination Risk in the Prophylactic Use of Iodine for Thyroid Blocking in the Event of a Nuclear Disaster. Front Endocrinol (Lausanne) 2022; 13:901620. [PMID: 35692388 PMCID: PMC9178126 DOI: 10.3389/fendo.2022.901620] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Accepted: 04/22/2022] [Indexed: 11/13/2022] Open
Abstract
Iodine is an essential element for the production of thyroid hormones (THs). Both deficient and excess iodine intakes may precipitate in adverse thyroidal events. Radioactive iodine (RI) is a common byproduct of nuclear fission processes. During nuclear emergencies RI may be released in a plume, or cloud, contaminating the environment. If inhaled or ingested, it may lead to internal radiation exposure and the uptake of RI mainly by the thyroid gland that absorbs stable iodine (SI) and RI in the same way. A dose of radiation delivered to the thyroid gland is a main risk factor for the thyroid cancer development. The SI prophylaxis helps prevent childhood thyroid cancer. The thyroid gland saturation with prophylactic SI ingestion, reduces the internal exposure of the thyroid by blocking the uptake of RI and inhibiting iodide organification. However, negative impact of inadequate SI intake must be considered. We provide an overview on the recommended iodine intake and the impact of SI and RI on thyroid in children and adolescents, discussing the benefits and adverse effects of the prophylactic SI for thyroid blocking during a nuclear accident. The use of SI for protection against RI may be recommended in cases of radiological or nuclear emergencies, moreover the administration of iodine for prophylactic purposes should be cautious. Benefits and risks should also be considered according to age. Adverse effects from iodine administration cannot be excluded. Precise indications are mandatory to use the iodine for thyroid blocking. Due to this natural adaption mechanism it's possible to tolerate large doses of iodine without clinical effects, however, a prolonged assumption of the iodine when not needed can be dangerous and may precipitate in severe thyroidal and non-thyroidal negative effects.
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Affiliation(s)
- Valeria Calcaterra
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
- Pediatric and Adolescent Unit, Department of Internal Medicine, University of Pavia, Pavia, Italy
- *Correspondence: Valeria Calcaterra,
| | - Chiara Mameli
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, Milan, Italy
| | - Virginia Rossi
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
| | - Giulia Massini
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
| | - Mirko Gambino
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
| | - Paola Baldassarre
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
| | - Gianvincenzo Zuccotti
- Pediatric Department, “Vittore Buzzi” Children’s Hospital, Milan, Italy
- Department of Biomedical and Clinical Sciences “L. Sacco”, University of Milan, Milan, Italy
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Ittermann T, Richter A, Junge M, Nauck M, Petersmann A, Jürgens C, Below H, Schmidt CO, Völzke H. Variability of Thyroid Measurements from Ultrasound and Laboratory in a Repeated Measurements Study. Eur Thyroid J 2021; 10:140-149. [PMID: 33981618 PMCID: PMC8077478 DOI: 10.1159/000507018] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/29/2019] [Revised: 02/24/2020] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Variability of measurements in medical research can be due to different sources. Quantification of measurement errors facilitates probabilistic sensitivity analyses in future research to minimize potential bias in epidemiological studies. We aimed to investigate the variation of thyroid-related outcomes derived from ultrasound (US) and laboratory analyses in a repeated measurements study. SUBJECTS AND METHODS Twenty-five volunteers (13 females, 12 males) aged 22-70 years were examined once a month over 1 year. US measurements included thyroid volume, goiter, and thyroid nodules. Laboratory measurements included urinary iodine concentrations and serum levels of thyroid-stimulating hormone (TSH), free triiodothyronine (fT3), free thyroxine (fT4), and thyroglobulin. Variations in continuous thyroid markers were assessed as coefficient of variation (CV) defined as mean of the individual CVs with bootstrapped confidence intervals and as intraclass correlation coefficients (ICCs). Variations in dichotomous thyroid markers were assessed by Cohen's kappa. RESULTS CV was highest for urinary iodine concentrations (56.9%), followed by TSH (27.2%), thyroglobulin (18.2%), thyroid volume (10.5%), fT3 (8.1%), and fT4 (6.3%). The ICC was lowest for urinary iodine concentrations (0.42), followed by fT3 (0.55), TSH (0.64), fT4 (0.72), thyroid volume (0.87), and thyroglobulin (0.90). Cohen's kappa values for the presence of goiter or thyroid nodules were 0.64 and 0.70, respectively. CONCLUSION Our study provides measures of variation for thyroid outcomes, which can be used for probabilistic sensitivity analyses of epidemiological data. The low intraindividual variation of serum thyroglobulin in comparison to urinary iodine concentrations emphasizes the potential of thyroglobulin as marker for the iodine status of populations.
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Affiliation(s)
- Till Ittermann
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
- *Till Ittermann, PD Dr. rer. med, Institute for Community Medicine, University Medicine Greifswald, Walther Rathenau Str. 48, DE–17475 Greifswald (Germany),
| | - Adrian Richter
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
- German Rheumatism Research Center, Berlin, Germany
| | - Martin Junge
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Matthias Nauck
- Institute for Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Astrid Petersmann
- Institute for Clinical Chemistry and Laboratory Medicine, University Medicine Greifswald, Greifswald, Germany
- Institute for Clinical Chemistry, Interdisciplinary University Laboratory, University Medicine Göttingen, Göttingen, Germany
| | - Clemens Jürgens
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Harald Below
- Institute of Hygiene and Environmental Medicine, University Medicine Greifswald, Greifswald, Germany
| | | | - Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
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Woodside JV, Mullan KR. Iodine status in UK-An accidental public health triumph gone sour. Clin Endocrinol (Oxf) 2021; 94:692-699. [PMID: 33249610 DOI: 10.1111/cen.14368] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/16/2020] [Revised: 09/16/2020] [Accepted: 10/27/2020] [Indexed: 11/30/2022]
Abstract
The improvement in iodine status among the UK population from the 1930s onwards has been described as an 'accidental public health triumph' despite the lack of any iodine fortification program. However, iodine deficiency in the UK has re-emerged in vulnerable groups and is likely due to a combination of changing farming practices, dietary preferences and public health priorities. The UK is now among only a minority of European countries with no legislative framework for iodine fortification. The experience of folic acid fortification and the 28-year delay in its implementation lays bare the political difficulties of introducing any fortification program in the UK. If iodine fortification is not an imminent possibility, then it is important to explore other options: how to change farming practice especially on organic farms; encourage dairy intake; protect and expand our public health programs of milk provision for vulnerable groups and embark on education programs for women of childbearing potential and healthcare professionals. This review explores how the UK may have arrived at this juncture and how the iodine status of the nation may be improved at this time of major political and public health upheaval.
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Affiliation(s)
- Jayne V Woodside
- School of Medicine, Dentistry and Biomedical Sciences, Institute for Global Food Security, Centre for Public Health, Queen's University Belfast, Belfast, UK
| | - Karen R Mullan
- Regional Centre for Endocrinology and Diabetes, Royal Victoria Hospital, BHSCT, Belfast, UK
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10
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Is There an Ideal Diet to Protect against Iodine Deficiency? Nutrients 2021; 13:nu13020513. [PMID: 33557336 PMCID: PMC7914421 DOI: 10.3390/nu13020513] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2020] [Revised: 02/01/2021] [Accepted: 02/01/2021] [Indexed: 12/17/2022] Open
Abstract
Iodine deficiency is a global issue and affects around 2 billion people worldwide, with pregnant women as a high-risk group. Iodine-deficiency prevention began in the 20th century and started with global salt iodination programmes, which aimed to improve the iodine intake status globally. Although it resulted in the effective eradication of the endemic goitre, it seems that salt iodination did not resolve all the issues. Currently, it is recommended to limit the consumption of salt, which is the main source of iodine, as a preventive measure of non-communicable diseases, such as hypertension or cancer the prevalence of which is increasing. In spite of the fact that there are other sources of iodine, such as fish, seafood, dairy products, water, and vegetables, the high consumption of processed food with a high content of unionised salt, alternative diets or limited salt intake can still lead to iodine deficiency. Thus, iodine deficiency remains a relevant issue, with new, preventive solutions necessary. However, it appears that there is no diet which would fully cover the iodine requirements, and iodine food supplementation is still required.
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Toman R, Pšenková M, Tančin V. The occurrence of eleven elements in dairy cow´s milk, feed, and soil from three different regions of Slovakia. POTRAVINARSTVO 2020. [DOI: 10.5219/1461] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
The objective of this study was to measure the concentrations of eleven essential, potentially toxic and toxic elements (arsenic – As, calcium – Ca, cadmium – Cd, copper – Cu, iron – Fe, mercury – Hg, magnesium – Mg, nickel – Ni, lead – Pb, selenium – Se, zinc- Zn) in raw cow’s milk (spring, summer, and autumn season), feed (spring and autumn season) and soil (spring season) from three different environments by routine methods in the certified testing laboratory. The samples were collected in the undisturbed region around Novoť, the moderately disturbed region around Tulčík, and the strongly disturbed region around Čečejovce. The concentrations of all toxic elements (As, Cd, Hg, Ni, Pb) and two essential elements (Cu, Se) in milk were under the limits of quantification (LOQ) from all investigated areas and during all seasons. Concentrations of other elements in milk from the undisturbed and disturbed areas were significantly different, generally with the highest levels in summer. In soil samples, the significantly highest concentrations of Ca, Cu, Ni were found in a strongly disturbed area, Mg and As in moderately disturbed area, and Fe, Se, Zn, Hg, and Pb in an undisturbed area. Cadmium was under the LOQ. In feed, the concentrations of essential elements, except of Se, were higher in the autumn. The significantly highest concentration of As, Ni were recorded in a moderately disturbed area and Pb in the undisturbed area in both seasons. Cadmium and Hg were under the LOQ. Despite the higher level of some elements in soil (Fe, Mg, Ca) from all regions, there were not elevated concentrations of any element in feed or milk. The concentrations of all toxic elements in milk were under the permitted limits. Thus, the milk from all investigated areas was not contaminated with the elements posing a health risk for consumers and it is considered safe for human consumption.
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12
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Perri G, Mendonça N, Jagger C, Walsh J, Eastell R, Mathers JC, Hill TR. Dietary Selenium Intakes and Musculoskeletal Function in Very Old Adults: Analysis of the Newcastle 85+ Study. Nutrients 2020; 12:E2068. [PMID: 32664662 PMCID: PMC7400825 DOI: 10.3390/nu12072068] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2020] [Revised: 07/07/2020] [Accepted: 07/08/2020] [Indexed: 12/30/2022] Open
Abstract
Background: Selenium is a trace element essential for health. Severe selenium deficiencies are associated with poor musculoskeletal (MSK) function. However, the effects of moderate deficiency on MSK function, especially in older adults, is unclear. Objectives: To determine the associations between selenium intake and MSK function in very old adults. Methods: Selenium intake at baseline and, hand-grip strength (HGS) and timed-up-and-go (TUG) at four phases over 5 years, were available in 791 participants in the Newcastle 85+ Study, a community-based, longitudinal cohort of ≥85 year old individuals. We investigated relationships between selenium intake and HGS and TUG in cross-sectional analyses at baseline using multivariate analyses and, prospectively using linear mixed models to explore HGS and TUG changes over 5 years in association with baseline selenium intake. Results: At baseline, 53% of participants had selenium intakes that were classified as low. These individuals had 2.80 kg lower HGS and were 2.30 s slower performing the TUG, cross-sectionally. In multivariate, baseline analyses, selenium intake had no significant impact on HGS or TUG. Selenium intake had no significant effect on MSK function, prospectively. Conclusion: Low selenium intake is common among very old adults and, in cross-sectional analyses, is associated with poorer MSK function.
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Affiliation(s)
- Giorgia Perri
- The MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Newcastle upon Tyne NE2 4HH, UK; (J.W.); (R.E.); (J.C.M.); (T.R.H.)
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
| | - Nuno Mendonça
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
- EpiDoC Unit, NOVA Medical School, Universidade Nova de Lisboa (NMS-UNL), 1150-082 Lisbon, Portugal
- Comprehensive Health Research Centre (CHRC), NOVA Medical School, Universidade Nova de Lisboa, 1150-082 Lisbon, Portugal
| | - Carol Jagger
- Population Health Sciences Institute, Campus for Ageing and Vitality, Newcastle University, Newcastle upon Tyne NE4 5PL, UK;
| | - Jennifer Walsh
- The MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Newcastle upon Tyne NE2 4HH, UK; (J.W.); (R.E.); (J.C.M.); (T.R.H.)
- Department of Oncology and Metabolism, University of Sheffield, Sheffield S5 7AU, UK
| | - Richard Eastell
- The MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Newcastle upon Tyne NE2 4HH, UK; (J.W.); (R.E.); (J.C.M.); (T.R.H.)
- Department of Oncology and Metabolism, University of Sheffield, Sheffield S5 7AU, UK
| | - John C. Mathers
- The MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Newcastle upon Tyne NE2 4HH, UK; (J.W.); (R.E.); (J.C.M.); (T.R.H.)
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
| | - Tom R. Hill
- The MRC-Versus Arthritis Centre for Integrated Research into Musculoskeletal Ageing (CIMA), Newcastle upon Tyne NE2 4HH, UK; (J.W.); (R.E.); (J.C.M.); (T.R.H.)
- Human Nutrition Research Centre, Population Health Sciences Institute, Newcastle University, Newcastle upon Tyne NE2 4HH, UK;
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13
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McKernan C, Meharg C, Carey M, Donaldson E, Williams P, Savage L, Meharg AA. Feed-derived iodine overrides environmental contribution to cow milk. J Dairy Sci 2020; 103:6930-6939. [PMID: 32475661 DOI: 10.3168/jds.2019-17446] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2019] [Accepted: 03/24/2020] [Indexed: 11/19/2022]
Abstract
Diets worldwide are deficient in iodine, leading to a range of undesirable health effects at the population level. Dairy products are a primary source of iodine in diets for those populations in which iodized salt is not systematically used or available. However, the flows of iodine through dairy agroecosystems are not well understood. The aim of this research was to investigate iodine flows though the dairy agroecosystem, including the influence of atmospheric depositional inputs, environmental variables, season, husbandry, and diet. Three farm-based sampling campaigns were carried out in this investigation, with milk, soil, silage, grass, and feed iodine determined by inductively coupled plasma mass spectroscopy, and nonparametric statistical analysis tests were conducted on data sets obtained. Natural iodine inputs into the environment are dominated by atmospheric deposition, which mainly from sea spray, and thus the location of farms relative to the coast and prevailing wind direction. Herbage and silage produced from grass-based systems strongly correlated with soil iodine, yet there was a strong disconnect between soil, forage, and feed and the milk that results. This was due to the levels of iodine in supplemental feeds being approximately 10-fold higher than those in forage-derived feeds. The practice of feed supplementation, accentuated by summer housing of cows, led to elevated milk iodine.
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Affiliation(s)
- C McKernan
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - C Meharg
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom.
| | - M Carey
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - E Donaldson
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - P Williams
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - L Savage
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom
| | - A A Meharg
- Institute for Global Food Security, Queen's University Belfast, 19 Chlorine Gardens, Belfast, BT9 5DL, United Kingdom.
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14
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Eveleigh ER, Coneyworth LJ, Avery A, Welham SJM. Vegans, Vegetarians, and Omnivores: How Does Dietary Choice Influence Iodine Intake? A Systematic Review. Nutrients 2020; 12:nu12061606. [PMID: 32486114 PMCID: PMC7352501 DOI: 10.3390/nu12061606] [Citation(s) in RCA: 41] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2020] [Revised: 05/24/2020] [Accepted: 05/26/2020] [Indexed: 01/22/2023] Open
Abstract
Vegan and vegetarian diets are becoming increasingly popular. Dietary restrictions may increase the risk of iodine deficiency. This systematic review aims to assess iodine intake and status in adults following a vegan or vegetarian diet in industrialised countries. A systematic review and quality assessment were conducted in the period May 2019–April 2020 according to Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines. Studies were identified in Ovid MEDLINE, Embase, Web of Science, PubMed, Scopus, and secondary sources. Fifteen articles met inclusion criteria. Participants included 127,094 adults (aged ≥ 18 years). Vegan groups presented the lowest median urinary iodine concentrations, followed by vegetarians, and did not achieve optimal status. The highest iodine intakes were recorded in female vegans (1448.0 ± 3879.0 µg day−1) and the lowest in vegetarians (15.6 ± 21.0 µg day−1). Omnivores recorded the greatest intake in 83% of studies. Seaweed contributed largely to diets of vegans with excessive iodine intake. Vegans appear to have increased risk of low iodine status, deficiency and inadequate intake compared with adults following less restrictive diets. Adults following vegan and vegetarian diets living in countries with a high prevalence of deficiency may be more vulnerable. Therefore, further monitoring of iodine status in industrialised countries and research into improving the iodine intake and status of adults following vegan and vegetarian diets is required.
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15
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Coneyworth LJ, Coulthard LCHA, Bailey EH, Young SD, Stubberfield J, Parsons L, Saunders N, Watson E, Homer EM, Welham SJM. Geographical and seasonal variation in iodine content of cow's milk in the UK and consequences for the consumer´s supply. J Trace Elem Med Biol 2020; 59:126453. [PMID: 31952009 DOI: 10.1016/j.jtemb.2020.126453] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/11/2018] [Revised: 12/13/2019] [Accepted: 01/09/2020] [Indexed: 11/20/2022]
Abstract
BACKGROUND Dairy products provide a crucial source of dietary iodine for the majority of the UK population, contributing approximately 30-40 % of daily intake. Fluctuations in the iodine content of purchased milk both seasonally and annually implies potential fragility of iodine supply likely through fluctuating supplementation practices in cow herds. We set out to establish the level of national variation in herds and identify factors which might impact milk iodine content. METHODS Milk samples were obtained from 98 herds across the UK via the National Milk Laboratories in August and December 2016. Iodine concentration of samples was measured using ICP-MS. Milk samples and feed intake data were additionally taken from 22 cows from the University of Nottingham (UON) dairy herd. RESULTS There was considerable variation in milk iodine content from < 0.012 (Limit of Detection) to 1558 μg L-1, with a summer median of 197 μg L-1 and winter median 297 μg L-1. Overall, winter values were higher than summer counterparts (P < 0.001) and this held true for samples taken from the North West (P = 0.002) and South West (P = 0.006) but not for other regions studied. Data from the UON herd showed a negative relationship between iodine content and milk yield (P = 0.03) and we found that milk iodine content varied considerably despite apparently similar iodine intakes. CONCLUSIONS Regional differences in milk iodine concentration between summer and winter suggests that feeding practices are far from uniform across the country. The negative association observed between iodine concentration and milk yield in UON samples, suggests that reduced summer values may be influenced by dilution in addition to seasonal differences in concentrate feed provision.
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Affiliation(s)
- Lisa J Coneyworth
- University of Nottingham, School of Biosciences, Division of Nutritional Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Lauren C H A Coulthard
- University of Nottingham, School of Biosciences, Division of Nutritional Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Elizabeth H Bailey
- University of Nottingham, School of Biosciences, Division of Agriculture and Environmental Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Scott D Young
- University of Nottingham, School of Biosciences, Division of Agriculture and Environmental Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Jonathan Stubberfield
- University of Nottingham, School of Biosciences, Division of Nutritional Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Louise Parsons
- University of Nottingham, School of Biosciences, Division of Nutritional Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Neil Saunders
- University of Nottingham, School of Biosciences, Division of Animal Science, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - Eamon Watson
- National Milk Laboratories, Units 26 - 29 Laches Close, Calibre Business Park, Four Ashes, Wolverhampton, WV10 7DZ, United Kingdom
| | - Elizabeth M Homer
- Trouw Nutrition GB, Blenheim House, Blenheim Road, Ashbourne, Derbyshire, DE6 1HA, United Kingdom
| | - Simon J M Welham
- University of Nottingham, School of Biosciences, Division of Nutritional Sciences, Sutton Bonington, Loughborough, Leicestershire, LE12 5RD, United Kingdom.
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16
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Large Variability of Iodine Content in Retail Cow's Milk in the U.S. Nutrients 2020; 12:nu12051246. [PMID: 32353959 PMCID: PMC7281966 DOI: 10.3390/nu12051246] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2020] [Revised: 04/16/2020] [Accepted: 04/22/2020] [Indexed: 12/18/2022] Open
Abstract
Iodine intake is of contemporary public health interest. The recommended daily iodine intake is 150 µg for most adults, and milk is an important source of iodine in the U.S. diet. Iodine concentration in cow’s milk is affected by diet and iodine supplementation levels, milking sanitation practices, and other factors. Current analytical iodine data in U.S. retail milk are crucial for evaluating population-wide health outcomes related to diet. Samples of whole (3.25% fat), 2%, 1%, and skim (0–0.5% fat) milk were procured from 24 supermarkets across the U.S. using a census-based statistical plan. Iodine was analyzed by inductively coupled plasma mass spectrometry, including certified reference materials and control samples to validate results. No difference in iodine content was found between milkfat levels (F3,69 1.033, p = 0.4). Overall mean (SEM) was 85(5.5) µg/serving (240 mL). However, the 95% prediction interval of 39–185 µg/serving for individual samples indicated high variability among individual samples. Given the recommended 150 µg iodine per day for most adults along with the study mean, one milk serving can provide approximately 57% of daily intake. Researchers, health care professionals, and consumers should be aware of iodine variability in milk, while additional research is needed to investigate the impact of iodine variability factors.
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17
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Saribal D. ICP-MS Analysis of Trace Element Concentrations in Cow's Milk Samples from Supermarkets in Istanbul, Turkey. Biol Trace Elem Res 2020; 193:166-173. [PMID: 30963409 DOI: 10.1007/s12011-019-01708-4] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/13/2019] [Accepted: 03/19/2019] [Indexed: 01/15/2023]
Abstract
Milk is a very important content of the human diet. The present study was performed to determine the concentrations of trace and toxic trace elements in 21 different milk samples in Turkish supermarkets. We aimed to evaluate the potential health risks of toxic elements to humans through ingestion. The concentrations of 19 elements lithium (Li), beryllium (Be), chromium (Cr), manganese (Mn), cobalt (Co), nickel (Ni), copper (Cu), arsenic (As), selenium (Se), strontium (Sr), molybdenum (Mo), cadmium (Cd), antimony (Sb), barium (Ba), lead (Pb), bismuth (Bi), mercury (Hg), thallium (Tl), and uranium (U) in milk samples were determined by using inductively coupled plasma-mass spectrometry (ICP-MS). The accuracy and precision of the method were verified by experiments. Nutritional trace elements were found to be below their reference intake levels. Although we found wide variation between the toxic element levels in the samples, none of the concentrations reached a health-threatening level. This is the first study presenting a wide range of elements including the toxic ones in a different variety of milk samples sold throughout the Turkish supermarkets.
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Affiliation(s)
- Devrim Saribal
- Department of Biophysics, Istanbul University-Cerrahpasa, Cerrahpasa Medical Faculty, Istanbul, Turkey.
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18
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van de Kamp ME, Saridakis I, Verkaik-Kloosterman J. Iodine content of semi-skimmed milk available in the Netherlands depending on farming (organic versus conventional) and heat treatment (pasteurized versus UHT) and implications for the consumer. J Trace Elem Med Biol 2019; 56:178-183. [PMID: 31479801 DOI: 10.1016/j.jtemb.2019.08.008] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/10/2018] [Revised: 08/19/2019] [Accepted: 08/19/2019] [Indexed: 11/23/2022]
Abstract
PURPOSE To study the iodine concentration in semi-skimmed cow's milk available on the Dutch market. METHODS The iodine content of 16 milk brands was determined at four times (June, September, December 2016 and March 2017) using inductively coupled plasma mass spectrometry. Brands included 12*pasteurized (n = 48 samples) and 4*UHT (n = 16 samples) milk, the brands subdivided into 8* organic and 8*conventional milk (each 32 samples). RESULTS The median iodine concentration was 15.9 μg/100 g. The iodine concentration increased from June 2016 to March 2017 from 12.4 μg/100 g to 19.9 μg/100 g. The time trend with difference between summer and winter milk iodine content was stronger in organic than conventional producing farms indicating more uncertainties to supply iodized minerals by pasture feeding. Despite reflection of the time trend in the investigated kinds of milk, the distributions of iodine concentrations were similar between organic and conventional produced milk and between pasteurized and UHT milk. CONCLUSIONS Milk was shown as a valuable iodine source for the Dutch consumer. The significant time trend in the iodine concentration in favor of the milk from a stable feeding period (Dec and March) compared with a pasture feeding period (June and September) is a challenge to keep all year round the cow's iodine supply level constant, mainly in organic producing farms.
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Affiliation(s)
- Mirjam E van de Kamp
- National Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, P.O. Box 1, 3720 BA Bilthoven, the Netherlands
| | - Irini Saridakis
- National Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, P.O. Box 1, 3720 BA Bilthoven, the Netherlands
| | - Janneke Verkaik-Kloosterman
- National Institute for Public Health and the Environment (RIVM), Antonie van Leeuwenhoeklaan 9, 3721 MA Bilthoven, P.O. Box 1, 3720 BA Bilthoven, the Netherlands.
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19
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Arrizabalaga JJ, Jalón M, Espada M, Cañas M, Latorre PM. Iodine contents in conventional ultra-high temperature (UHT) processed cow milk: Changes over the year and regional differences. Implications for epidemiological studies on iodine nutritional status. ACTA ACUST UNITED AC 2019; 67:383-393. [PMID: 31776107 DOI: 10.1016/j.endinu.2019.08.005] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2019] [Revised: 07/28/2019] [Accepted: 08/20/2019] [Indexed: 11/17/2022]
Abstract
BACKGROUND AND OBJECTIVES Ultra-high temperature (UHT) processed cow milk is the milk most commonly consumed in Southwest Europe. The study objectives were: 1) to describe the pattern followed by iodine concentration (IC) in conventional UHT milk over the year, and 2) to find out any differences in IC in this type of milk depending on its geographical origin. MATERIAL AND METHODS Bricks of conventional UHT cow milk of commercial brands available in food stores in Vitoria-Gasteiz (Araba/Álava), Basque Country (Spain) were bought for 12 consecutive months, and their ICs were measured using high performance liquid chromatography. RESULTS Median (P25-P75) IC in UHT milk (n=489) was 190 (159-235)μg/L. IC in milk showed great changes over the year, reaching peak values between January and May (241 [201-272]μg/L), and minimal levels between July and November (162 [134-185]μg/L) (P<.0001). The IC of milk packed in Germany was significantly lower than that of milks packed in Spain and France, 119 (106-156)μg/L versus 189 (159-229)μg/L and 205 (176-243)μg/L respectively (P<.0001). CONCLUSIONS Conventional UHT cow milk is a very important nutritional source of iodine, but its IC is highly variable. Knowledge of the pattern followed by IC in milk over the year is of great interest for planning epidemiological studies on iodine nutritional status in schoolchildren and for interpretation of their results.
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Affiliation(s)
- Juan José Arrizabalaga
- Servicio de Endocrinología y Nutrición, Hospital Universitario Araba-Arabako Unibertsitate Ospitalea, Osakidetza-Servicio Vasco de Salud, (Araba/Álava), Vitoria-Gasteiz, España.
| | - Mercedes Jalón
- Dirección de Salud Pública y Adicciones, Departamento de Salud, Gobierno Vasco-Eusko Jaurlaritza, (Araba/Álava), Vitoria- Gasteiz, España
| | - Mercedes Espada
- Unidad de Química Clínica, Laboratorio Normativo de Salud Pública, Departamento de Salud, Gobierno Vasco-Eusko Jaurlaritza, (Bizkaia), Derio, España
| | - Mercedes Cañas
- Dirección de Salud Pública y Adicciones, Departamento de Salud, Gobierno Vasco-Eusko Jaurlaritza, (Araba/Álava), Vitoria- Gasteiz, España
| | - Pedro María Latorre
- Unidad de Investigación, Atención Primaria de Bizkaia, Osakidetza-Servicio Vasco de Salud, (Bizkaia), Bilbao, España
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20
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Shaw M, Nugent AP, McNulty BA, Walton J, McHugh M, Kane A, Moore Heslin A, Morrissey E, Mullan K, Woodside JV. What is the availability of iodised salt in supermarkets on the Island of Ireland? Eur J Clin Nutr 2019; 73:1636-1638. [PMID: 31624363 DOI: 10.1038/s41430-019-0518-6] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Revised: 10/01/2019] [Accepted: 10/03/2019] [Indexed: 11/10/2022]
Abstract
Iodine deficiency remains a global nutritional public health challenge, with evidence suggesting borderline adequate or even deficient status for UK and Irish subpopulations such as schoolgirls and pregnant women. The solution, according to the WHO, is salt iodisation, but it is not known how widely available iodised salt is in supermarkets. Iodised salt availability was determined by a shelf survey of 89 supermarket stores on the island of Ireland (n = 30 in Northern Ireland and n = 59 in the Republic of Ireland) from September 2018 to January 2019, to take into account factors such as store type, location, population density, socioeconomic status and ethnicity. Availability was calculated as the number of stores selling iodised salt as a percentage of the total. Iodised salt was only available in 11 stores (12%), of which 10 were ethnic stores. This indicates a lack of access for the majority of the Irish and Northern Irish populations.
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Affiliation(s)
- Mark Shaw
- Institute for Global Food Security, Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Anne P Nugent
- Institute for Global Food Security, School of Biological Sciences, Queen's University Belfast, Belfast, UK
| | - Breige A McNulty
- Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Dublin 4, Ireland
| | - Janette Walton
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
| | - Michaela McHugh
- Institute for Global Food Security, Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Ashley Kane
- Institute for Global Food Security, Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK
| | - Aoibhin Moore Heslin
- Institute of Food and Health, School of Agriculture and Food Science, University College Dublin, Dublin, Dublin 4, Ireland
| | - Eoin Morrissey
- Department of Biological Sciences, Cork Institute of Technology, Cork, Ireland
| | - Karen Mullan
- Regional Centre for Endocrinology & Diabetes, Belfast Health & Social Care Trust, Belfast, UK
| | - Jayne V Woodside
- Institute for Global Food Security, Centre for Public Health, School of Medicine, Dentistry and Biomedical Sciences, Queen's University Belfast, Belfast, UK.
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21
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Völzke H, Erlund I, Hubalewska-Dydejczyk A, Ittermann T, Peeters RP, Rayman M, Buchberger M, Siebert U, Thuesen BH, Zimmermann MB, Grünert S, Lazarus JH. How Do We Improve the Impact of Iodine Deficiency Disorders Prevention in Europe and Beyond? Eur Thyroid J 2018; 7:193-200. [PMID: 30283737 PMCID: PMC6140605 DOI: 10.1159/000490347] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/12/2018] [Accepted: 05/14/2018] [Indexed: 11/19/2022] Open
Abstract
BACKGROUND Iodine deficiency disorders (IDD) represent a global health threat to individuals and societies. IDD prevention programmes have been introduced in many parts of the world. However, challenges remain, particularly in Europe due to fragmentation and diversity of approaches that are not harmonized. OBJECTIVES This review is dedicated to the public-health impact of IDD prevention programmes. It sums up experiences collected by the EUthyroid consortium so far and provides information on stakeholders that should be involved in actions directed to improve the impact of IDD prevention. METHODS A joint European database for combining registry-based outcome and monitoring data as well as tools for harmonizing study methods were established. Methods for analyzing thyroglobulin from a dried blood spot are available for assessing the iodine status in the general population and at-risk groups. Mother-child cohorts are used for in-depth analysis of the potential impact of mild-to-moderate iodine deficiency on the neurocognitive development of the offspring. A decision-analytic model has been developed to evaluate the long-term effectiveness and cost effectiveness of IDD prevention programmes. RESULTS EUthyroid has produced tools and infrastructure to improve the quality of IDD monitoring and follows a dissemination strategy targeting policymakers and the general public. There are tight connections to major stakeholders in the field of IDD monitoring and prevention. CONCLUSIONS EUthyroid has taken steps towards achieving a euthyroid Europe. Our challenge is to inspire a greater sense of urgency in both policymakers and the wider public to address this remediable deficit caused by IDD.
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Affiliation(s)
- Henry Völzke
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Iris Erlund
- Department of Public Health Solutions, National Institute for Health and Welfare (THL), Helsinki, Finland
| | | | - Till Ittermann
- Institute for Community Medicine, University Medicine Greifswald, Greifswald, Germany
| | - Robin P. Peeters
- Department of Internal Medicine, Rotterdam Thyroid Centre, Erasmus Medical Centre, Rotterdam, the Netherlands
| | | | - Monika Buchberger
- Department of Public Health and Health Technology Assessment, UMIT, University for Health Science, Medical Informatics and Technology, Hall, Austria
| | - Uwe Siebert
- Department of Public Health and Health Technology Assessment, UMIT, University for Health Science, Medical Informatics and Technology, Hall, Austria
| | | | - Michael B. Zimmermann
- Swiss Federal Institute of Technology, Zürich Department of Health Sciences and Technology, Zürich, Switzerland
| | | | - John H. Lazarus
- Institute of Molecular Medicine, Cardiff University, Cardiff, United Kingdom
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Schirone M, Tofalo R, Perpetuini G, Manetta AC, Di Gianvito P, Tittarelli F, Battistelli N, Corsetti A, Suzzi G, Martino G. Influence of Iodine Feeding on Microbiological and Physico-Chemical Characteristics and Biogenic Amines Content in a Raw Ewes' Milk Cheese. Foods 2018; 7:foods7070108. [PMID: 29986497 PMCID: PMC6068549 DOI: 10.3390/foods7070108] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2018] [Revised: 06/23/2018] [Accepted: 07/06/2018] [Indexed: 12/03/2022] Open
Abstract
Iodine is an essential trace element involved in the regulation of thyroid metabolism and antioxidant status in humans and animals. The aim of this study was to evaluate the effect of ewes’ dietary iodine supplementation on biogenic amines content as well as microbiological and physico-chemical characteristics in a raw milk cheese at different ripening times (milk, curd, and 2, 7, 15, 30, 60, and 90 days). Two cheese-making trials were carried out using milk from ewes fed with unifeed (Cheese A) or with the same concentrate enriched with iodine (Cheese B). The results indicated that the counts of principal microbial groups and physico-chemical characteristics were quite similar in both cheeses at day 90. Cheese B was characterized by a higher content of biogenic amines and propionic acid. Propionic bacteria were found in both cheeses mainly in Trial B in agreement with the higher content of propionic acid detected.
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Affiliation(s)
- Maria Schirone
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Rosanna Tofalo
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Giorgia Perpetuini
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Anna Chiara Manetta
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Paola Di Gianvito
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Fabrizia Tittarelli
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Noemi Battistelli
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Aldo Corsetti
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Giovanna Suzzi
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
| | - Giuseppe Martino
- Faculty of Bioscience and Technology for Food, Agriculture and Environment, University of Teramo, Via R. Balzarini, 1, 64100 Teramo, Italy.
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