Nutraveris
Thursday, May 31, 2012
Category : CONVICTIONS, CLINICAL EVIDENCE | Author : experts | Comment : No Comments
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EFSA published 2 scientific reports prepared by the University of East Anglia from Norwich (UK) in order to identify health outcomes upon which Dietary Reference Values could potentially be based for 6 minerals: magnesium, potassium, fluoride, chromium, manganese and molybdenum. The systematic searches and reviews were performed using databases Medline, EMBASE and the Cochrane Library Central. Here there are the selected inclusion/exclusion criteria:

– Data published in the English language from 1990 onwards
– Human studies conducted in generally healthy populations
– Studies which examined the relationship between micronutrient intake, status, and/or health
– Studies which were relevant to micronutrient intakes within the normal dietary/physiological range

Overall, the majority of studies identified were assessed as being at risk of bias. In addition, data were limited for the elderly, adolescents and children, with the exception of fluoride studies addressing tooth health. Thus, according to the results, the DRVs could not be established for these minerals. Relevant new data are therefore expected in order to conclude on this subject. Once again it is therefore surprising that, although these studies are biased and cannot be used to establish the VNRs, health claims are authorized for these minerals and can be used with only 15% of the RDAs!

References : Brown T., Mullee A., Collings R., Harvey L., Hooper L. and Fairweather-Tait S. Preparation of an evidence report identifying health outcomes upon which Dietary Reference Values could potentially be based for magnesium, potassium and fluoride. Scientific report submitted to EFSA. Accepted for publication on 14 May 2012.Mullee A., Brown T., Collings R., Harvey L., Hooper L. and Fairweather-Tait S. Preparation of an evidence report identifying health outcomes upon which Dietary Reference Values could potentially be based for chromium, manganese and molybdenum. Scientific report submitted to EFSA. Accepted for publication on 14 May 2012.

Monday, May 24, 2010
Category : CONVICTIONS, CLINICAL EVIDENCE | Author : experts | Comment : No Comments
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While the media regularly claim that “miracle pills” are ineffective or even harmful in particular with slimming products and discredit the whole health nutrition products, this study shows scientific evidence and evaluated whether 10-y average intakes of different actives (3 vitamin and mineral supplements and glucosamine, chondroitin, saw palmetto, Ginko biloba, garlic, fish-oil, and fiber supplements) were associated with total mortality.

This study performed in 77,719 subjects (aged 50-76 y) and followed for mortality for an average of 5 y shows not only for most of the supplements examined there was no association with total mortality, but also use of glucosamine and use of chondroitin were each associated with decreased total mortality. There was also a suggestion of a decreased risk of total mortality associated with a high intake of fish-oil supplements but the test for trend was not statistically significant.

All studies are accessible online on Nutraveris’on line

Reference: Pocobelli G, Kristal AR, Patterson RE, Potter JD, Lampe JW, Kolar A, Evans I, White E. Total mortality risk in relation to use of less-common dietary supplements. Am J Clin Nutr. 2010 Apr 21.