A lowered salt intake does not compromise iodine status in Cape Town, South Africa, where salt iodization is mandatory

Charlton, Karen E; Jooste, P. L.; Steyn, Krisela; Levitt, Naomi; Ghosh, Abhijeet

doi:10.1016/j.nut.2012.09.010

Cited by 35 publications

(33 citation statements)

References 27 publications

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“…Some evidence exists that salt intake targets are compatible with adequate iodine status in countries with USI. A South African study has reported that consumers with salt intakes within the recommended range of <5 g/day are iodine replete and that median urinary iodine concentrations did not differ across categories of salt intake [84]. In the absence of USI in the UK, salt reduction will not impact on iodine status, but recent evidence suggests that sub-optimal intakes of iodine, particularly in teenage girls [85], needs to be addressed through other nutritional interventions.…”

Section: Discussionmentioning

confidence: 99%

To Legislate or Not to Legislate? A Comparison of the UK and South African Approaches to the Development and Implementation of Salt Reduction Programs

2014

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The World Health Organization promotes salt reduction as a best-buy strategy to reduce chronic diseases, and Member States have agreed to a 30% reduction target in mean population salt intake by 2025. Whilst the UK has made the most progress on salt reduction, South Africa was the first country to pass legislation for salt levels in a range of processed foods. This paper compares the process of developing salt reduction strategies in both countries and highlights lessons for other countries. Like the UK, the benefits of salt reduction were being debated in South Africa long before it became a policy priority. Whilst salt reduction was gaining a higher profile internationally, undoubtedly, local research to produce context-specific, domestic costs and outcome indicators for South Africa was crucial in influencing the decision to legislate. In the UK, strong government leadership and extensive advocacy activities initiated in the early 2000s have helped drive the voluntary uptake of salt targets by the food industry. It is too early to say which strategy will be most effective regarding reductions in population-level blood pressure. Robust monitoring and transparent mechanisms for holding the industry accountable will be key to continued progress in each of the countries.

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Section: Discussionmentioning

confidence: 99%

To Legislate or Not to Legislate? A Comparison of the UK and South African Approaches to the Development and Implementation of Salt Reduction Programs

2014

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“…Se han realizado numerosos intentos para mitigar el déficit en el consumo del yodo, principalmente mediante la yodatización universal de la sal de mesa desde la década de 1920 (De Caffarelli et al, 1997;Zimmermann, 2009;Charlton et al, 2013). Sin embargo, a través de los años se ha demostrado que esta técnica por sí sola es insuficiente para asegurar el requerimiento total de yodo (De Benosit et al, 2008).…”

Section: (Figura 1)unclassified

“…There have been numerous attempts to mitigate the deficit in iodine consumption, mainly through universal iodization of table salt since the 1920s (De Caffarelli et al, 1997;Zimmermann, 2009;Charlton et al, 2013). However, over the years it has been proven that this technique alone is insufficient to ensure total iodine requirement (De Benosit et al, 2008).…”

Section: Disponibilidad Del Yodo En Los Alimentosmentioning

confidence: 99%

“…Por su parte Blasco et al (2008) demostraron que aplicando yodo en concentraciones ≤5.1 mg L -1 de yoduro (I -) en lechuga hidropónica se obtuvo una adecuada acumulación de yodo foliar, la cual fue de 900 µg g -1 de tejido seco, cantidad que es suficiente para cumplir la demanda diaria de consumo de yodo en humanos (150 µg día -1 ) (Charlton et al, 2013) cuando se consumen entre 17 y 200 g de tejido fresco de lechuga por semana, ya que esta concentración no excede la máxima cantidad recomendada la cual es de 2 mg por día. Sin embargo a concentraciones superiores a 5.1 mg L -1 de yoduro se presentaba una reducción significativa en la biomasa, caso que no sucedió aplicando las mismas concentraciones de yodato.…”

Section: Contenido De Yodo En Las Plantasunclassified

“…Meanwhile Blasco et al (2008) demonstrated that applying iodine concentrations ≤5.1 mg L -1 iodide (I -) in hydroponic lettuce obtained an adequate accumulation of foliar iodine, which was 900 µg -1 g dry tissue, amount that is sufficient to meet the daily demand for iodine intake in humans (150 µg day -1 ) (Charlton et al, 2013) when consumed between 17 and 200 g of fresh tissue of lettuce per week, as this concentration does not exceed the maximum recommended amount which is 2 mg per day. However at concentrations above 5.1 mg L -1 iodide a significant reduction in biomass was present, thing that did not happen applying the same concentrations of iodate.…”

Section: Contenido De Yodo En Las Plantasmentioning

confidence: 99%

See 2 more Smart Citations

Biofortificación con yodo en plantas para consumo humano

Leija-Martínez

Benavides-Mendoza

Rocha-Estrada

et al. 2017

Remexca

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ResumenEn el presente trabajo se describe la problemática de salud debido al consumo insuficiente del yodo, así como las alternativas que han sido empleadas para mitigar este problema global, tanto las tradicionales como la yodatización de sal de mesa hasta las nuevas tendencias de biofortificación con yodo en las principales plantas de consumo humano. Se incluyen los mecanismos de absorción, volatilización y transporte del yodo en las plantas, distinguiendo entre especies marinas y terrestres. Se mencionan asimismo los resultados obtenidos en algunos estudios de biofortificación, citando las diferentes formas de aplicación y las diferencias obtenidas entre los sistemas de cultivo en suelo y sin suelo.Palabras clave: absorción de yodo, desorden por deficiencia de yodo, fortificación con yodo, haloperoxidasas, yodatización. IntroducciónEl consumo insuficiente de los micronutrientes través de los alimentos causa una malnutrición mineral en humanos. Hasta ahora se han determinado 11 elementos traza que son AbstractThis paper describe health problems due to insufficient iodine intake, thus the alternatives that have been used to alleviate this global problem, both traditional and iodization of table salt to new trends of iodine biofortification in the main plants for human consumption. The mechanisms of absorption, volatilization and transport of iodine in plants, distinguishing between marine and terrestrial species are included. The results of some biofortification studies are also mentioned, citing the different forms of application and the differences obtained between cropping systems in soil and soilless.

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