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Old 10-11-2013, 01:11 PM   #15
R.B.
Senior Member
 
Join Date: Mar 2006
Posts: 1,843
Re: Iodine deficiency ! - falling intakes - goitregens - competition bromine and fluo

I have recently attended a governmental seminar on school food, to which I have made a submission highlighting the need for dietary guidance on iodine and vitamin D, and hence the posts here and on the vitamin D thread.

Today's adolescent females will one day be a future generation of breast cancer cases.

The frightening level of deficiency observed has potential likely medical consequences in terms of them being at greater risk for a range of conditions including arguably breast cancer, fibrosis and mastalga, as well as a range of developmental and future reproductive conditions, which is a disaster for the individual and has wider societal implications in terms of the increasing pressures on healthcare generally.

The sad reality is that these risk are entirely and inexpensively preventable through education as to dietary needs, food sources rich in iodine (not many viz only marine products and seaweed) and or the obligatory inclusion of iodine rich food in school food, for example fortified bread




http://www.medicalnewstoday.com/articles/226988.php
68% of 14-15 year old girls in UK iodine deficient - health risk for them and their future offspring


The Lancet, Volume 377, Issue 9782, Pages 2007 - 2012, 11 June 2011
doi:10.1016/S0140-6736(11)60693-4

Iodine status of UK schoolgirls: a cross-sectional survey.

Department of Endocrinology, Royal Free Hampstead NHS Trust, London, UK.

Vanderpump MP, Lazarus JH, Smyth PP, Laurberg P, Holder RL, Boelaert K, Franklyn JA, British Thyroid Association UK Iodine Survey Group

Lancet. 2011;377(9782):2007.

BACKGROUND: Iodine deficiency is the most common cause of preventable mental impairment worldwide. It is defined by WHO as mild if the population median urinary iodine excretion is 50-99μg/L, moderate if 20-49μg/L, and severe if less than 20μg/L. No contemporary data are available for the UK, which has no programme of food or salt iodination. We aimed to assess the current iodine status of the UK population.
METHODS: In this cross-sectional survey, we systematically assessed iodine status in schoolgirls aged 14-15 years attending secondary school in nine UK centres. Urinary iodine concentrations and tap water iodine concentrations were measured in June-July, 2009, and November-December, 2009. Ethnic origin, postcode, and a validated diet questionnaire assessing sources of iodine were recorded.
FINDINGS: 810 participants provided 737 urine samples. Data for dietary habits and iodine status were available for 664 participants. Median urinary iodine excretion was 80·1μg/L (IQR 56·9-109·0). Urinary iodine measurements indicative of mild iodine deficiency were present in 51% (n=379) of participants, moderate deficiency in 16% (n=120), and severe deficiency in 1% (n=8). Prevalence of iodine deficiency was highest in Belfast (85%, n=135). Tap water iodine concentrations were low or undetectable and were not positively associated with urinary iodine concentrations. Multivariable general linear model analysis confirmed independent associations between low urinary iodine excretion and sampling in summer (p<0·0001), UK geographical location (p<0·0001), low intake of milk (p=0·03), and high intake of eggs (p=0·02).
INTERPRETATION: Our findings suggest that the UK is iodine deficient. Since developing fetuses are the most susceptible to adverse effects of iodine deficiency and even mild perturbations of maternal and fetal thyroid function have an effect on neurodevelopment, these findings are of potential major public health importance. This study has drawn attention to an urgent need for a comprehensive investigation of UK iodine status and implementation of evidence-based recommendations for iodine supplementation.
FUNDING: Clinical Endocrinology Trust.
AD

mark.vanderpump@nhs.net
PMID
21640375

Last edited by R.B.; 10-11-2013 at 02:32 PM..
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