Category 'Epidemiology'

Tuesday, November 27, 2012
Category : Epidemiology, CLINICAL EVIDENCE | Author : experts | Comment : No Comments
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Lutein and zeaxanthine, carotenoids that form macular pigment and well known for their benefit on eyes seems to be also beneficial for brain.

This is what is shown by this review based on epidemiological data and a 4-mo, double-blinded, placebo-controlled trial in older women that involved lutein supplementation (12 mg/d), alone or in combination with DHA (800 mg/d). Memory scores and rate of learning improved significantly in the combined-treatment group, who also showed a trend toward more efficient learning.

Find more information in Nutraveris on line.

Reference: Johnson EJ. A possible role for lutein and zeaxanthin in cognitive function in the elderly. Am J Clin Nutr. 2012 Oct 10.

Tuesday, March 6, 2012
Category : NEWS, Epidemiology, food safety | Author : experts | Comment : No Comments
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There was not even one death caused by a vitamin supplement in 2010, according to the most recent information collected by the U.S. National Poison Data System. The new annual report of the American Association of Poison Control Centers shows zero deaths from multiple vitamins; zero deaths from any of the B vitamins; zero deaths from vitamins A, C, D, or E; and zero deaths from any other vitamin.
Additionally, there were no deaths whatsoever from any amino acid or dietary mineral supplement.

Well over half of the U.S. population takes daily nutritional supplements. Even if each of those people took only one single tablet daily, that makes 165,000,000 individual doses per day, for a total of over 60 billion doses annually. Since many persons take far more than just one single vitamin or mineral tablet, actual consumption is considerably higher, and the safety of nutritional supplements is all the more remarkable.

Over 60 billion doses of vitamin and mineral supplements per year in the USA, and not a single fatality. Not one.

If vitamin and mineral supplements are allegedly so “dangerous,” as the FDA and news media so often claim, then where are the proofs?

Reference: Bronstein AC, Spyker DA, Cantilena LR Jr, Green JL, Rumack BH, Dart RC. 2010 Annual Report of the American Association of Poison Control Centers’ National Poison Data System (NPDS): 28th Annual Report


Tuesday, September 20, 2011
Category : Epidemiology, INGREDIENTS | Author : experts | Comment : No Comments
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A recent study conducted in 37038 women has assessed the relationship between the consumption of dairy products during adolescence and the risk of developing type 2 diabetes at adulthood. Based on a food-frequency questionnaire about their diet during high school, followed by a medical surveillance during 7 years, this study shows a positive effect of dairy products consumption during adolescence and the risk of developing type 2 diabetes subsequently. Effectively, the results of the study show that the risk of type 2 diabetes is 38% higher in women with the lower intake of dairy products compared with women with the higher intake of dairy products.
Even if the mechanisms underlying this protective effect are unknown, the interest of dairy products for health is one more time emphasized.

Reference : Malik V.S., Sun Q. , van Dam R.M., Rimm E.B., Willett W.C., Rosner B., and Hu F.B. “Adolescent dairy product consumption and risk of type 2 diabetes in middle-aged women” Am J Clin Nutr September 2011 94: 854-861

Thursday, February 10, 2011
Category : CONVICTIONS, Epidemiology | Author : experts | Comment : No Comments
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Eight fruits and vegetables a day!

The results of the large European observational study EPIC (European Prospective Investigation into Cancer and Nutrition), the intake of 8 fruits and vegetables a day is associated with a reduced risk of mortality from ischemic heart disease.

In this study, more than 300,000 volunteers from eight European countries, without history of myocardial infarction or stroke were followed for an average of 8.4 years. A total of 1,636 deaths from ischemic heart disease have been reported. Volunteers consuming at least 8 servings (80g each) of fruits and vegetables a day had a 22% significant lower risk of fatal ischaemic heart disease compared with those consuming less than 3 servings per day.

Although the cause and effect relationship is not proven, and the mechanisms of action of fruits and vegetables are not clear, these initial observations encouraged seriously to consider these foods.

Reference : Crowe FL, Roddam AW, Key TJ, Appleby PN, Overvad K, Jakobsen MU, Tjønneland A, Hansen L, Boeing H, Weikert C, Linseisen J, Kaaks R, Trichopoulou A, Misirli G, Lagiou P, Sacerdote C, Pala V, Palli D, Tumino R, Panico S, Bueno-de-Mesquita HB, Boer J, van Gils CH, Beulens JW, Barricarte A, Rodríguez L, Larrañaga N, Sánchez MJ, Tormo MJ, Buckland G, Lund E, Hedblad B, Melander O, Jansson JH, Wennberg P, Wareham NJ, Slimani N, Romieu I, Jenab M, Danesh J, Gallo V, Norat T, Riboli E; European Prospective Investigation into Cancer and Nutrition (EPIC)-Heart Study Collaborators, “Fruit and vegetable intake and mortality from ischaemic heart disease: results from the European Prospective Investigation into Cancer and Nutrition (EPIC)-Heart study”, Eur Heart J. 2011 Jan 18. [Epub ahead of print]

Thursday, December 9, 2010
Category : Epidemiology | Author : experts | Comment : No Comments
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In the “Epic-Panacea” cohort study, conducted on 103,455 men and 270,348 women aged 25 to 70 years who were recruited between 1992 and 2000 in 10 European countries, researchers from the UK just concluded that the total meat consumption (red, white and poultry) is associated with weight gain in men and women, and decrease in this consumption can permit to lose weight. According to the authors, with adjustment for estimated energy intake, an increase in meat intake of 250 g/d (eg, one steak at approximately 450 kcal) would lead to a 2-kg higher weight gain after 5 years.

It should be noted that meat consumption in France has fallen steadily over the last ten years.

Reference : Vergnaud AC, Norat T, Romaguera D, Mouw T, May AM, Travier N, Luan J, Wareham N, Slimani N, Rinaldi S, Couto E, Clavel-Chapelon F, Boutron-Ruault MC, Cottet V, Palli D, Agnoli C, Panico S, Tumino R, Vineis P, Agudo A, Rodriguez L, Sanchez MJ, Amiano P, Barricarte A, Huerta JM, Key TJ, Spencer EA, Bueno-de-Mesquita B, Büchner FL, Orfanos P, Naska A, Trichopoulou A, Rohrmann S, Hermann S, Boeing H, Buijsse B, Johansson I, Hellstrom V, Manjer J, Wirfält E, Jakobsen MU, Overvad K, Tjonneland A, Halkjaer J, Lund E, Braaten T, Engeset D, Odysseos A, Riboli E, Peeters PH, “Meat consumption and prospective weight change in participants of the EPIC-PANACEA study”, Am J Clin Nutr. 2010 Aug;92(2):398-407. Am J Clin Nutr. 2010 Nov;92(5):1274-5; author reply 1275-6.