scholarly journals Diet, nutrition and the prevention of type 2 diabetes

2004 ◽  
Vol 7 (1a) ◽  
pp. 147-165 ◽  
Author(s):  
NP Steyn ◽  
J Mann ◽  
PH Bennett ◽  
N Temple ◽  
P Zimmet ◽  
...  

AbstractObjectives:The overall objective of this study was to evaluate and provide evidence and recommendations on current published literature about diet and lifestyle in the prevention of type 2 diabetes.Design:Epidemiological and experimental studies, focusing on nutritional intervention in the prevention of type 2 diabetes are used to make disease-specific recommendations. Long-term cohort studies are given the most weight as to strength of evidence available.Setting and subjects:Numerous clinical trials and cohort studies in low, middle and high income countries are evaluated regarding recommendations for dietary prevention of type 2 diabetes. These include, among others, the Finnish Diabetes Prevention Study, US Diabetes Prevention Program, Da Qing Study; Pima Indian Study; Iowa Women's Health Study; and the study of the US Male Physicians.Results:There is convincing evidence for a decreased risk of diabetes in adults who are physically active and maintain a normal body mass index (BMI) throughout adulthood, and in overweight adults with impaired glucose tolerance who lose weight voluntarily. An increased risk for developing type 2 diabetes is associated with overweight and obesity; abdominal obesity; physical inactivity; and maternal diabetes. It is probable that a high intake of saturated fats and intrauterine growth retardation also contribute to an increased risk, while non-starch polysaccharides are likely to be associated with a decreased risk. From existing evidence it is also possible that omega-3 fatty acids, low glycaemic index foods and exclusive breastfeeding may play a protective role, and that total fat intake and trans fatty acids may contribute to the risk. However, insufficient evidence is currently available to provide convincing proof.Conclusions:Based on the strength of available evidence regarding diet and lifestyle in the prevention of type 2 diabetes, it is recommended that a normal weight status in the lower BMI range (BMI 21–23) and regular physical activity be maintained throughout adulthood; abdominal obesity be prevented; and saturated fat intake be less than 7% of the total energy intake.

Nutrients ◽  
2021 ◽  
Vol 13 (5) ◽  
pp. 1471
Author(s):  
Huma Rana ◽  
Marie-Claude Mallet ◽  
Alejandro Gonzalez ◽  
Marie-France Verreault ◽  
Sylvie St-Pierre

Free sugars (FS) are associated with a higher risk of dental decay in children and an increased risk of weight gain, overweight and obesity and type 2 diabetes. For this reason, Canada’s Food Guide recommends limiting foods and beverages that contribute to excess free sugars consumption. Estimating FS intakes is needed to inform policies and interventions aimed at reducing Canadians’ consumption of FS. The objective of this study was to estimate FS intake of Canadians using a new method that estimated the free sugars content of foods in the Canadian Nutrient File, the database used in national nutrition surveys. We define FS as sugars present in food products in which the structure has been broken down. We found that 12% of total energy (about 56 g) comes from FS in the diet of Canadians 1 year of age and older (≥1 year). The top four sources were: (1) sugars, syrups, preserves, confectionary, desserts; (2) soft drinks; (3) baked products and (4) juice (without added sugars), and accounted for 60% of total free sugars intake. The results show that efforts need to be sustained to help Canadians, particularly children and adolescents, to reduce their FS intake.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Eva Graham ◽  
Tristan Watson ◽  
Sonya S. Deschênes ◽  
Kristian B. Filion ◽  
Mélanie Henderson ◽  
...  

AbstractThis cohort study aimed to compare the incidence of type 2 diabetes in adults with depression-related weight gain, depression-related weight loss, depression with no weight change, and no depression. The study sample included 59,315 community-dwelling adults in Ontario, Canada. Depression-related weight change in the past 12 months was measured using the Composite International Diagnostic Interview—Short Form. Participants were followed for up to 20 years using administrative health data. Cox proportional hazards models compared the incidence of type 2 diabetes in adults with depression-related weight change and in adults with no depression. Adults with depression-related weight gain had an increased risk of type 2 diabetes compared to adults no depression (HR 1.70, 95% CI 1.32–2.20), adults with depression-related weight loss (HR 1.62, 95% CI 1.09–2.42), and adults with depression with no weight change (HR 1.39, 95% CI 1.03–1.86). Adults with depression with no weight change also had an increased risk of type 2 diabetes compared to those with no depression (HR 1.23, 95% CI 1.04–1.45). Associations were stronger among women and persisted after adjusting for attained overweight and obesity. Identifying symptoms of weight change in depression may aid in identifying adults at higher risk of type 2 diabetes and in developing tailored prevention strategies.


2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Diego Yacamán-Méndez ◽  
Ylva Trolle-Lagerros ◽  
Minhao Zhou ◽  
Antonio Monteiro Ponce de Leon ◽  
Hrafnhildur Gudjonsdottir ◽  
...  

AbstractAlthough exposure to overweight and obesity at different ages is associated to a higher risk of type 2 diabetes, the effect of different patterns of exposure through life remains unclear. We aimed to characterize life-course trajectories of weight categories and estimate their impact on the incidence of type 2 diabetes. We categorized the weight of 7203 participants as lean, normal or overweight at five time-points from ages 7–55 using retrospective data. Participants were followed for an average of 19 years for the development of type 2 diabetes. We used latent class analysis to describe distinctive trajectories and estimated the risk ratio, absolute risk difference and population attributable fraction (PAF) associated to different trajectories using Poisson regression. We found five distinctive life-course trajectories. Using the stable-normal weight trajectory as reference, the stable overweight, lean increasing weight, overweight from early adulthood and overweight from late adulthood trajectories were associated to higher risk of type 2 diabetes. The estimated risk ratios and absolute risk differences were statistically significant for all trajectories, except for the risk ratio of the lean increasing trajectory group among men. Of the 981 incident cases of type 2 diabetes, 47.4% among women and 42.9% among men were attributable to exposure to any life-course trajectory different from stable normal weight. Most of the risk was attributable to trajectories including overweight or obesity at any point of life (36.8% of the cases among women and 36.7% among men). The overweight from early adulthood trajectory had the highest impact (PAF: 23.2% for woman and 28.5% for men). We described five distinctive life-course trajectories of weight that were associated to increased risk of type 2 diabetes over 19 years of follow-up. The variability of the effect of exposure to overweight and obesity on the risk of developing type 2 diabetes was largely explained by exposure to the different life-course trajectories of weight.


2018 ◽  
Vol 19 (11) ◽  
pp. 3342 ◽  
Author(s):  
Jasmine Plows ◽  
Joanna Stanley ◽  
Philip Baker ◽  
Clare Reynolds ◽  
Mark Vickers

Gestational diabetes mellitus (GDM) is a serious pregnancy complication, in which women without previously diagnosed diabetes develop chronic hyperglycemia during gestation. In most cases, this hyperglycemia is the result of impaired glucose tolerance due to pancreatic β-cell dysfunction on a background of chronic insulin resistance. Risk factors for GDM include overweight and obesity, advanced maternal age, and a family history or any form of diabetes. Consequences of GDM include increased risk of maternal cardiovascular disease and type 2 diabetes and macrosomia and birth complications in the infant. There is also a longer-term risk of obesity, type 2 diabetes, and cardiovascular disease in the child. GDM affects approximately 16.5% of pregnancies worldwide, and this number is set to increase with the escalating obesity epidemic. While several management strategies exist—including insulin and lifestyle interventions—there is not yet a cure or an efficacious prevention strategy. One reason for this is that the molecular mechanisms underlying GDM are poorly defined. This review discusses what is known about the pathophysiology of GDM, and where there are gaps in the literature that warrant further exploration.


2019 ◽  
Vol 3 (Supplement_1) ◽  
Author(s):  
Sigrun Henjum ◽  
Victoria Telle Hjellset ◽  
Marte Karoline Raberg Kjollesdal ◽  
Merethe Flaaten ◽  
Eivind Andersen ◽  
...  

Abstract Objectives Economic development, globalization and urbanization has resulted in a shift in dietary consumption and energy expenditure in low- and middle-income countries, called the Nutrition Transition. At the same time, the prevalence of type 2 diabetes (T2D) and associated co-morbidities are rising worldwide. The Saharawi refugees have been living in refugee camps in the Algerian desert since 1975 and are totally dependent on food aid. High prevalence of overweight and obesity has been reported among Saharawi women. Limited knowledge about the prevalence of T2D and associated risk factors exists in this population; therefore, the aim with this study was to address this gap in the literature. Methods A cross-sectional survey was carried out in five Saharawi refugee camps, in Algeria and 180 women and 175 men were randomly selected. Participants’ blood glucose levels was assessed by HbA1c measurements and diagnosed with diabetes if HbA1c ≥48 mmol/mol and prediabetes if HbA1c was between 42–47 mmol/mol. The Finnish Diabetes Risk Score (FINDRISK) was used to assess various risk factors for T2D. Results Mean HbA1c among the Saharawi refugees was 38 mmol/mol. Seven and 15% were diagnosed with T2D and prediabetes, respectively, and 26% and 19% were overweight and obese, respectively. According to FINDRISK, 9% of the participants had high risk of developing diabetes, 10% had moderate risk, 37% had some risk and 44% had low risk. In multiple logistic regression models, after controlling for age, gender, number of children, BMI and education, the strongest predictor for diabetes was waist circumference, OR (95% CI): 1.1 (1.0, 1.1). The strongest predictor for prediabetes was age and waist circumference OR (95% CI): 1.0 (1.0, 1.1) and OR (95% CI): 1.1 (1.0, 1.1), respectively. Conclusions We found moderate prevalence of diabetes among the Saharawi refugees; however a high proportion had prediabetes and were suffering from overweight and obesity. In light of this, the rates of T2D are likely to increase dramatically in the near future. The Saharawi health authorities should pay attention to the increased risk of diabetes in this in this vulnerable population. Funding Sources Oslo Metropolitan University.


2017 ◽  
Vol 8 (4) ◽  
pp. 480-488 ◽  
Author(s):  
Cai Chen ◽  
Yan Yang ◽  
Xuefeng Yu ◽  
Shuhong Hu ◽  
Shiying Shao

PLoS Medicine ◽  
2020 ◽  
Vol 17 (6) ◽  
pp. e1003102 ◽  
Author(s):  
Fumiaki Imamura ◽  
Amanda M. Fretts ◽  
Matti Marklund ◽  
Andres V. Ardisson Korat ◽  
Wei-Sin Yang ◽  
...  

2014 ◽  
Vol 10 (02) ◽  
pp. 103 ◽  
Author(s):  
Osama Hamdy ◽  

Increased dietary carbohydrates contributed to the escalating prevalence of obesity and type 2 diabetes. From the late seventies, several medical societies recommended reducing fat intake and replaced it with carbohydrates. These mistaken recommendations contributed to poor diabetes control, abnormal lipid profile, and increasing insulin resistance without reduction in cardiovascular mortality. Over the last few years, strong evidence suggest reducing carbohydrates intake for patients with type 2 diabetes to less than 40%. The era of high carbohydrates came to an end.


2005 ◽  
Vol 64 (3) ◽  
pp. 349-357 ◽  
Author(s):  
D. I. Shaw ◽  
W. L. Hall ◽  
C. M. Williams

Obesity and overweight are linked with a cluster of metabolic and vascular disorders that have been termed the metabolic syndrome. Although there is not yet a universally-accepted set of diagnostic criteria, most expert groups agree that the syndrome is characterised by impaired insulin sensitivity and hyperglycaemia, dyslipidaemia (elevated blood triacyglycerols with depressed HDL-cholesterol), abdominal obesity and hypertension. Based on existing published criteria estimates suggest that the syndrome affects a substantial percentage of the middle-aged and elderly populations of most European countries (10–20%) and confers increased risk of type 2 diabetes (2–8.8-fold) and CVD (1.5–6-fold), as well as having a marked effect on morbidity. Although the pathophysiology is incompletely understood, insulin resistance and abdominal obesity are central to subsequent abnormalities in circulating glucose and lipoproteins, and vascular function that lead to type 2 diabetes, atherosclerosis and CVD. The link between metabolic syndrome, type 2 diabetes and CVD, as well as inability to reverse the present rising rates of obesity, will lead to economically-unsustainable costs of health care in the next 10–20 years. Preventative strategies for metabolic syndrome are required to slow rates of progression and to reduce dependence on costly medical management. A notable development is recent evidence that shows that diet and exercise are more effective than drug treatment in preventing the development of type-2 diabetes in high-risk individuals. The LIPGENE project will investigate dietary fat quality as a strategy for the prevention of metabolic syndrome and identify food chain approaches that can support consumer attempts to alter their dietary patterns.


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