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      Food based dietary patterns and chronic disease prevention

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          Abstract

          Matthias B Schulze and colleagues discuss current knowledge on the associations between dietary patterns and cancer, coronary heart disease, stroke, and type 2 diabetes, focusing on areas of uncertainty and future research directions

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          Most cited references28

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          Red meat consumption and risk of type 2 diabetes: 3 cohorts of US adults and an updated meta-analysis.

          The relation between consumption of different types of red meats and risk of type 2 diabetes (T2D) remains uncertain. We evaluated the association between unprocessed and processed red meat consumption and incident T2D in US adults. We followed 37,083 men in the Health Professionals Follow-Up Study (1986-2006), 79,570 women in the Nurses' Health Study I (1980-2008), and 87,504 women in the Nurses' Health Study II (1991-2005). Diet was assessed by validated food-frequency questionnaires, and data were updated every 4 y. Incident T2D was confirmed by a validated supplementary questionnaire. During 4,033,322 person-years of follow-up, we documented 13,759 incident T2D cases. After adjustment for age, BMI, and other lifestyle and dietary risk factors, both unprocessed and processed red meat intakes were positively associated with T2D risk in each cohort (all P-trend <0.001). The pooled HRs (95% CIs) for a one serving/d increase in unprocessed, processed, and total red meat consumption were 1.12 (1.08, 1.16), 1.32 (1.25, 1.40), and 1.14 (1.10, 1.18), respectively. The results were confirmed by a meta-analysis (442,101 participants and 28,228 diabetes cases): the RRs (95% CIs) were 1.19 (1.04, 1.37) and 1.51 (1.25, 1.83) for 100 g unprocessed red meat/d and for 50 g processed red meat/d, respectively. We estimated that substitutions of one serving of nuts, low-fat dairy, and whole grains per day for one serving of red meat per day were associated with a 16-35% lower risk of T2D. Our results suggest that red meat consumption, particularly processed red meat, is associated with an increased risk of T2D.
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            Application of a new statistical method to derive dietary patterns in nutritional epidemiology.

            Because foods are consumed in combination, it is difficult in observational studies to separate the effects of single foods on the development of diseases. A possible way to examine the combined effect of food intakes is to derive dietary patterns by using appropriate statistical methods. The objective of this study was to apply a new statistical method, reduced rank regression (RRR), that is more flexible and powerful than the classic principal component analysis. RRR can be used efficiently in nutritional epidemiology by choosing disease-specific response variables and determining combinations of food intake that explain as much response variation as possible. The authors applied RRR to extract dietary patterns from 49 food groups, specifying four diabetes-related nutrients and nutrient ratios as responses. Data were derived from a nested German case-control study within the European Prospective Investigation into Cancer and Nutrition-Potsdam study consisting of 193 cases with incident type 2 diabetes identified until 2001 and 385 controls. The four factors extracted by RRR explained 93.1% of response variation, whereas the first four factors obtained by principal component analysis accounted for only 41.9%. In contrast to principal component analysis and other methods, the new RRR method extracted a significant risk factor for diabetes.
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              Comparison of weight loss among named diet programs in overweight and obese adults: a meta-analysis.

              Many claims have been made regarding the superiority of one diet or another for inducing weight loss. Which diet is best remains unclear.
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                Author and article information

                Contributors
                Role: professor and department head
                Role: professor and department chair
                Role: professor
                Role: Gershoff professor, director and senior scientist
                Role: professor and programme leader
                Journal
                BMJ
                BMJ
                BMJ-UK
                bmj
                The BMJ
                BMJ Publishing Group Ltd.
                0959-8138
                1756-1833
                2018
                13 June 2018
                : 361
                : k2396
                Affiliations
                [1 ]Department of Molecular Epidemiology, German Institute of Human Nutrition Potsdam-Rehbruecke, Nuthetal, Germany.
                [2 ]University of Potsdam, Institute of Nutritional Sciences, Nuthetal, Germany
                [3 ]NutriAct—Competence Cluster Nutrition Research Berlin-Potsdam, Germany
                [4 ]Department of Preventive Medicine and Public Health, University of Navarra-IdiSNA, Pamplona, Spain
                [5 ]CIBER Fisiopatología de la Obesidad y Nutrición (CIBERobn), Instituto de Salud Carlos III (ISCIII), Spain
                [6 ]Department of Nutrition, Harvard T H Chan School of Public Health, Boston, USA
                [7 ]Department of Nutrition, Simmons College, Boston, USA
                [8 ]Friedman School of Nutrition Science and Policy, Tufts University, Boston, USA
                [9 ]Cardiovascular Nutrition Laboratory, Jean Mayer USDA Human Nutrition Research Center on Aging at Tufts University, Boston, USA
                [10 ]Medical Research Council Epidemiology Unit, University of Cambridge, Cambridge, UK
                Author notes
                Correspondence to: M B Schulze mschulze@ 123456dife.de
                Article
                schm045209
                10.1136/bmj.k2396
                5996879
                29898951
                d64d7741-8f6c-4873-a080-cfabf2c122f5
                Published by the BMJ Publishing Group Limited. For permission to use (where not already granted under a licence) please go to http://group.bmj.com/group/rights-licensing/permissions

                This is an Open Access article distributed in accordance with the Creative Commons Attribution Non Commercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: http://creativecommons.org/licenses/by-nc/4.0/.

                History
                Categories
                Analysis
                Science and Politics of Nutrition

                Medicine
                Medicine

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