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Background: We have developed a diet quality metric intended for global use. To assess its utility in high-income settings, an evaluation of its ability to predict chronic disease is needed.
Objectives: We aimed to prospectively examine the ability of the Global Diet Quality Score (GDQS) to predict the risk of type 2 diabetes in the United States, examine potential differences of association by age, and compare the GDQS with other diet quality scores.
Methods: Health, lifestyle, and diet information was collected from women (n = 88,520) in the Nurses' Health Study II aged 27-44 y at baseline through repeated questionnaires between 1991 and 2017. The overall GDQS consists of 25 food groups. Points are awarded for higher intake of healthy groups and lower intake of unhealthy groups (maximum of 49 points). Multivariable HRs were computed for confirmed type 2 diabetes using proportional hazards models. We also compared the GDQS with the Minimum Diet Diversity score for Women (MDD-W) and the Alternate Healthy Eating Index-2010 (AHEI-2010).
Results: We ascertained 6305 incident cases of type 2 diabetes during follow-up. We observed a lower risk of diabetes with higher GDQS; the multivariable HR comparing extreme quintiles of the GDQS was 0.83 (95% CI: 0.76, 0.91; P-trend < 0.001). The magnitude of association was similar between women aged <50 y and those aged ≥50 y. An inverse association was observed with lower intake of unhealthy components (HR comparing extreme quintiles of the unhealthy submetric: 0.76; 95% CI: 0.69, 0.84; P-trend < 0.001) but was not with the healthy submetric. The inverse association for each 1-SD increase in the GDQS (HR: 0.93; 95% CI: 0.91, 0.96) was stronger (P < 0.001) than for the MDD-W (HR: 1.00; 95% CI: 0.94, 1.04) but was slightly weaker (P = 0.03) than for the AHEI-2010 (HR: 0.91; 95% CI: 0.88, 0.94).
Conclusions: A higher GDQS was inversely associated with type 2 diabetes risk in US women of reproductive age or older, mainly from lower intake of unhealthy foods. The GDQS performed nearly as well as the AHEI-2010.
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http://dx.doi.org/10.1093/jn/nxab195 | DOI Listing |
Geroscience
September 2025
NUS Bia-Echo Asia Centre for Reproductive Longevity and Equality, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Singapore.
In the past century, the human Lifespan has doubled. However, this is not equivalent to Healthspan which refers to the number of years spent healthy and free from disease. Women have an additional level of complexity on the path to optimal healthspan where health resilience dramatically decreases following menopause and this is due to their ovaries aging by midlife.
View Article and Find Full Text PDFEur J Nutr
September 2025
Department of Nutrition, Exercise and Sports, University of Copenhagen, Frederiksberg, Denmark.
Purpose: We developed a diet quality index based on the Planetary Health Diet (PHD) to assess healthy and sustainable diets. The index was applied alongside socio-demographic characteristics in five regions across Europe and North Africa.
Methods: The Sustainable Healthy Diet Index (SHDI) was designed using existing and validated healthy diet indexes.
Eur J Nutr
September 2025
Institute of Public Health and Clinical Nutrition, University of Eastern Finland, PO Box 1627, 70211, Kuopio, Finland.
Purpose: To investigate how a group-based lifestyle intervention affects food choices and if the dietary patterns at the end of the intervention are associated with incidence type 2 diabetes (T2D). We also investigated if the possible associations between diet and T2D risk were modified by the genetic risk for T2D.
Methods: Participants in the T2D-GENE study were men with prediabetes aged 50-75 years, body mass index ≥ 25 kg/m, belonging in either low or high genetic risk score (GRS) tertile for T2D.
Nat Med
September 2025
Department of Metabolism, Digestion and Reproduction, Faculty of Medicine, Imperial College London, London, UK.
Existing evaluations of the National Health Service Diabetes Prevention Programme (NHS DPP) in England have demonstrated associated reductions in body weight, hemoglobin A1c and incident type 2 diabetes (T2D). In this study, we examined associations between completion of the NHS DPP and incidence of T2D and 30 other long-term conditions (LTCs), including LTCs considered linked to the program's interventional goals of body weight reduction, increased physical activity and improved diet quality (LTC-L) and LTCs considered to be possibly linked to those goals (LTC-PL). We found that completers of the NHS DPP had lower incidences of T2D, LTC-L and LTC-PL compared to non-attenders.
View Article and Find Full Text PDFRev Gastroenterol Mex (Engl Ed)
September 2025
Facultad de Nutrición, Universidad Federal de Bahía (UFBA), Salvador, Bahía, Brazil.
Introduction And Aims: Metabolic dysfunction-associated steatotic disease (MASLD) is the most common cause of chronic liver disease in children and adolescents. The development of MASLD is associated with dietary habits, and dietary intake characteristics are a relevant risk factor. The aim of the present study was to analyze dietary intake characteristics in children and adolescents and study how diet varies in subjects with and without MASLD.
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