Abstract P141: Dairy Consumption and Risk of Type 2 Diabetes: 3 Cohorts of US Adults and An Updated Meta-Analysis

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Mu Chen ◽  
Qi Sun ◽  
Edward Giovannucci ◽  
Walter Willett ◽  
Dariush Mozaffarian ◽  
...  

Introduction: The relation between consumption of different types of dairy foods and risk of type 2 diabetes (T2D) remains uncertain. Hypothesis: We hypothesized that total dairy intake is not associated with incident T2D but some specific types of dairy foods may be associated with reduced risk of T2D in US adults. Methods: We followed 41,705 men in Health Professionals Follow-Up Study (1986-2010), 67,812 women in Nurses’ Health Study (1980-2010), and 86,158 women in the Nurses’ Health Study II (1991-2009). Diet was assessed by validated food-frequency questionnaires, and data were updated every 4 yrs. Incident T2D was confirmed by a validated supplementary questionnaire. Analyses were performed by using Cox regression models and fixed-effect meta-analyses were conducted to summarize the estimates of association if no significant heterogeneities were shown otherwise random-effect models were used. Results: During 4,054,783 person-years of follow-up, we documented 14,372 incident T2D cases. After adjustment for age, BMI, and other lifestyle and dietary risk factors, total dairy consumption was not associated with T2D risk and the pooled HR (95% CI) for each 1 serving/d increase in total dairy was 0.99 (0.98, 1.01). Among different types of dairy products, yogurt was consistently associated with lower T2D risk in all three cohorts, with a pooled HR of 0.83 (0.76, 0.91) for each 1 serving/d increment. Other types of dairy foods such as milk and cheese were not significantly associated with T2D. The results were confirmed by a meta-analysis of 13 prospective cohorts (543,438 participants and 39,555 diabetes cases): the RRs (95% CIs) were 0.98 (0.96, 1.01) and 0.83 (0.73, 0.95) for 400g total dairy/d and for 200g yogurt/d, respectively. Conclusion: These results suggest that intake of yogurt is associated with a reduced risk of T2D, whereas other dairy foods are not associated with incidence of T2D.

Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Chisa Matsumoto ◽  
Howard D Sesso ◽  
Howard D Sesso ◽  
J. Michael Gaziano ◽  
Luc Djoussé

Objectives: Short-term metabolic studies have shown that caffeine improves insulin-sensitivity. However, epidemiological studies evaluating the relationship of caffeine intake with risk of type 2 diabetes (DM) have shown inconsistent results. We examined whether caffeine intake is associated with the risk of DM in the Physicians’ Health Study and supplemented the results with a meta-analysis. Methods: We prospectively analyzed data on 18,432 PHS participants that were free of DM at baseline (1997-2001). Caffeine intake was assessed using a food-frequency questionnaire. Incident DM was ascertained via annual follow-up questionnaires and validated in a subsample by review of medical records. We used Cox proportional hazards models to estimate the HR and 95% CI of DM. Meta-analysis was conducted through a systematic literature search using PubMed and EMBASE. A random-effect model was used and between-studies heterogeneity was estimated with I 2 . Results: In the PHS, mean age at baseline was 66.4 ± 9.3 years, and 1,137 men (6.2%) developed DM during mean follow up of 9.2 years. In a multivariable model adjusted for conventional risk factors of DM, HRs (95% CI) for DM were 1.0 (ref), 1.08 (0.90-1.29), 1.03 (0.85-1.24), 0.98 (0.81-1.18), and 0.86 (0.70-1.04) across consecutive quintiles of caffeine intake (p for linear trend= 0.69). Meta-analysis included 6 studies consisted of 7 separate cohorts comprising 275,971 individuals and 10,048 cases of incident DM. The pooled odds ratio (95% CI) for DM was 0.79 (0.68-0.93) when the highest caffeine intake was compared to the lowest group in random effects model (I 2 =75%). Conclusion: While only the highest category of caffeine intake was associated with a modest and non-significant association with DM in the PHS, results from the meta-analysis were consistent with a lower risk of DM.


2011 ◽  
Vol 94 (4) ◽  
pp. 1088-1096 ◽  
Author(s):  
An Pan ◽  
Qi Sun ◽  
Adam M Bernstein ◽  
Matthias B Schulze ◽  
JoAnn E Manson ◽  
...  

ABSTRACT Background: The relation between consumption of different types of red meats and risk of type 2 diabetes (T2D) remains uncertain. Objective: We evaluated the association between unprocessed and processed red meat consumption and incident T2D in US adults. Design: 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. Results: 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. Conclusion: Our results suggest that red meat consumption, particularly processed red meat, is associated with an increased risk of T2D.


2020 ◽  
Vol 4 (Supplement_2) ◽  
pp. 1387-1387
Author(s):  
Zhangling Cheng ◽  
Jean-Philippe Drouin-Chartier ◽  
Yanping Li ◽  
Megu Baden ◽  
JoAnn Manson ◽  
...  

Abstract Objectives Plant-based diets may lower type 2 diabetes (T2D) risk. Whether changes in adherence to plant-based diets are associated with subsequent T2D risk remains unknown. We aimed to evaluate the associations between 4 year changes in plant based diets and subsequent 4 year risk of T2D. Methods We prospectively followed 76,530 women in the Nurses’ Health Study (NHS, 1986–2012), 81,586 women in NHS II (1991–2017), and 34,468 men in the Health Professionals’ Follow-up Study (1986–2016). Diet was assessed every 4 years using validated food-frequency questionnaires. Adherence to plant-based diets was assessed using previously developed indices – the overall plant-based diet index (PDI), the healthful PDI (hPDI), and the unhealthful PDI (uPDI). Self reported T2D cases were validated by supplementary questionnaires. We used multivariable time dependent Cox proportional hazards models to estimate hazard ratios (HR) and 95% CIs for T2D associated with 4 year changes in adherence to plant based diets. Results of the three cohorts were pooled using an inverse variance-weighted meta-analysis. Results We documented 12,016 cases of T2D during 2818,485 person-years of follow-up. After adjustment for initial BMI, initial and 4-year changes in lifestyle and other factors, compared with participants whose indices remained relatively stable (±3%), participants with the largest 4-year decrease (>10%) in PDI and hPDI had a 12%-23% higher T2D risk in the subsequent 4 years (HR for PDI, 1.12 (95% CI 1.05, 1.20), HR for hPDI, 1.23 (1.16, 1.31)). Conversely, each 10% incremental increase in PDI and hPDI over 4 years was associated with a 7%–9% lower T2D risk in subsequent 4 years (HR for PDI, 0.93 (0.90, 0.95), HR for hPDI, 0.91 (0.87, 0.95)). Changes in uPDI were not associated with T2D risk. Further adjustment for concurrent changes in body weight, a potential mediator, modestly attenuated the associations but results remained significant. We estimated that body weight changes explained 6.0%–36% of the associations between 4 year changes in PDI and hPDI and subsequent T2D risk. Conclusions Improving adherence to overall and healthful plant based diets over a 4 year period was associated with a lower T2D risk, whereas decreased adherence to overall and healthful plant based diets was associated with a higher T2D risk. Funding Sources Nutricia Research Foundation/NIH.


2018 ◽  
Vol 119 (9) ◽  
pp. 1057-1067 ◽  
Author(s):  
Guo-Chong Chen ◽  
Woon-Puay Koh ◽  
Jian-Min Yuan ◽  
Li-Qiang Qin ◽  
Rob M. van Dam

AbstractSeveral previous prospective studies suggest that consumption of green leafy and cruciferous vegetables may lower the risk of type 2 diabetes (T2D). We investigated the association between consumption of different types of vegetables in relation to T2D risk in an Asian Population. We included 45 411 participants (age range: 45–74 years) of the Singapore Chinese Health Study (SCHS) free of diabetes, cancer or CVD at baseline (1993–1998). Dietary information was collected using a validated FFQ. Physician-diagnosed incident diabetes was reported at follow-up I (1999–2004) and II (2006–2010) interviews. Cox proportional hazards regression was used to estimate hazard ratio (HR) and 95 % CI of T2D risk. An updated meta-analysis was also conducted to summarise results for green leafy and cruciferous vegetables. During 494 741 person-years of follow-up, 5207 incident T2D occurred. After adjustment for potential confounders, neither total vegetables (top v. bottom quintile HR=1·08; 95 % CI 0·98, 1·18, Ptrend=0·66) nor specific vegetables including dark green leafy vegetables (HR=1·05; 95 % CI 0·96, 1·15, Ptrend=0·21) and cruciferous vegetables (HR=0·97; 95 % CI 0·88, 1·06, Ptrend=0·29) were substantially associated with risk of T2D. A meta-analysis (eleven studies with 754 729 participants and 58 297 cases) including the SCHS and all previous prospective studies suggested borderline significant inverse associations between green leafy (summary relative risk (RR)=0·91; 95 % CI 0·84, 1·00) and cruciferous vegetable consumption (RR=0·87; 95 % CI 0·76, 1·00) and T2D risk, with moderate-to-high heterogeneity. In conclusion, green leafy or cruciferous vegetable consumption was not substantially associated with risk of T2D in an Asian population. Meta-analysis of available cohort data indicated that evidence for a beneficial effect of green leafy or cruciferous vegetable consumption on T2D risk is not convincing.


Circulation ◽  
2014 ◽  
Vol 129 (suppl_1) ◽  
Author(s):  
Shilpa N Bhupathiraju ◽  
Deidre K Tobias ◽  
Vasanti S Malik ◽  
An Pan ◽  
Adela Hruby ◽  
...  

Epidemiologic evidence for the role of glycemic index (GI) and glycemic load (GL) in the prevention of type 2 diabetes (T2D) has been mixed. The American Diabetes Association’s nutrition recommendations for T2D prevention state that there is not sufficient, consistent evidence to conclude that low GL diets reduce T2D risk but acknowledge the role of low GI foods rich in fiber in preventing T2D. Therefore, our objectives were to 1) prospectively examine the association of dietary GI and GL with T2D in 3 US cohorts, and 2) conduct an updated meta-analysis of the previous literature including results from our 3 cohorts. We prospectively followed 74,248 women from the Nurses’ Health Study (1984-2008), 86,484 women from the Nurses’ Health Study II (1991-2009), and 40,525 men from the Health Professionals Follow-up Study (1986-2008) who were free of diabetes, cardiovascular disease, and cancer at baseline. Diet was assessed every 4 years using a validated questionnaire. During 3,738,507 person-years of follow-up, we documented 14,482 T2D cases. In pooled multivariable analyses, after adjusting for dietary and non-dietary covariates including body mass index, those in the highest quintile of energy-adjusted GI had a 34% higher risk (95% CI: 27-43%) of T2D. Participants in the highest quintile of energy-adjusted GL had a 13% higher risk (95% CI: 5-22%) for T2D. Participants in the highest tertile of GI/GL and lowest tertile of cereal fiber had about a 50% (GI, RR=1.59, 95% CI:1.47-1.73; GL, RR=1.47, 95% CI:1.32-1.63) higher risk for T2D compared to those in the lowest tertile of GI/GL and highest tertile of cereal fiber. In the updated meta-analysis (675,767 participants and 45,570 T2D cases), the summary RRs (95% CIs) comparing the highest versus lowest categories of GI and GL were 1.19 (1.15-1.24) and 1.13 (1.09-1.18), respectively (Figure 1A and 1B). Our findings provide further evidence that a high GI/GL diet is associated with a higher T2D risk. Public health recommendations for T2D prevention should incorporate GI and GL in meal planning.


BMJ ◽  
2020 ◽  
pp. m2206 ◽  
Author(s):  
Yang Hu ◽  
Ming Ding ◽  
Laura Sampson ◽  
Walter C Willett ◽  
JoAnn E Manson ◽  
...  

Abstract Objective To examine the associations between the intake of total and individual whole grain foods and the risk of type 2 diabetes. Design Prospective cohort studies. Setting Nurses’ Health Study (1984-2014), Nurses’ Health Study II (1991-2017), and Health Professionals Follow-Up Study (1986-2016), United States. Participants 158 259 women and 36 525 men who did not have type 2 diabetes, cardiovascular disease, or cancer at baseline. Main outcome measures Self-reports of incident type 2 diabetes by participants identified through follow-up questionnaires and confirmed by a validated supplementary questionnaire. Results During 4 618 796 person years of follow-up, 18 629 participants with type 2 diabetes were identified. Total whole grain consumption was categorized into five equal groups of servings a day for the three cohorts. After adjusting for lifestyle and dietary risk factors for diabetes, participants in the highest category for total whole grain consumption had a 29% (95% confidence interval 26% to 33%) lower rate of type 2 diabetes compared with those in the lowest category. For individual whole grain foods, pooled hazard ratios (95% confidence intervals) for type 2 diabetes in participants consuming one or more servings a day compared with those consuming less than one serving a month were 0.81 (0.77 to 0.86) for whole grain cold breakfast cereal, 0.79 (0.75 to 0.83) for dark bread, and 1.08 (1.00 to 1.17) for popcorn. For other individual whole grains with lower average intake levels, comparing consumption of two or more servings a week with less than one serving a month, the pooled hazard ratios (95% confidence intervals) were 0.79 (0.75 to 0.83) for oatmeal, 0.88 (0.82 to 0.94) for brown rice, 0.85 (0.80 to 0.90) for added bran, and 0.88 (0.78 to 0.98) for wheat germ. Spline regression showed a non-linear dose-response association between total whole grain intake and the risk of type 2 diabetes where the rate reduction slightly plateaued at more than two servings a day (P<0.001 for curvature). For whole grain cold breakfast cereal and dark bread, the rate reduction plateaued at about 0.5 servings a day. For consumption of popcorn, a J shaped association was found where the rate of type 2 diabetes was not significantly raised until consumption exceeded about one serving a day. The association between higher total whole grain intake and lower risk of type 2 diabetes was stronger in individuals who were lean than in those who were overweight or obese (P=0.003 for interaction), and the associations did not vary significantly across levels of physical activity, family history of diabetes, or smoking status. Conclusion Higher consumption of total whole grains and several commonly eaten whole grain foods, including whole grain breakfast cereal, oatmeal, dark bread, brown rice, added bran, and wheat germ, was significantly associated with a lower risk of type 2 diabetes. These findings provide further support for the current recommendations of increasing whole grain consumption as part of a healthy diet for the prevention of type 2 diabetes.


2013 ◽  
Vol 59 (3) ◽  
pp. 557-565 ◽  
Author(s):  
Brendan M Everett ◽  
Nancy R Cook ◽  
Daniel I Chasman ◽  
Maria C Magnone ◽  
Maria Bobadilla ◽  
...  

BACKGROUND Animal data suggest that natriuretic peptides play an important role in energy metabolism, but prospective studies evaluating a relationship between these peptides and type 2 diabetes mellitus (T2DM) in humans are few and results are conflicting. METHODS We used a prospective case-cohort approach (n = 491 T2DM cases, n = 561 reference subcohort) within the Women's Health Study to evaluate baseline N-terminal pro-B-type natriuretic peptide (NT-proBNP) concentrations and the risk of incident T2DM. We also tested for associations between 4 common variants in the natriuretic peptide A and B genes (NPPA and NPPB) and NT-proBNP concentrations (n = 458) and incident T2DM (n = 1372 cases among 22 607 women). RESULTS Case subjects had higher median baseline body mass index (29.4 vs 25.0 kg/m2, P &lt; 0.001) and lower baseline median (interquartile range) NT-proBNP concentrations [46.8 ng/L (26.1–83.2) vs 66.7 ng/L (39.3–124.7), P &lt; 0.001]. In proportional hazards models adjusting for established diabetes risk factors, women in the highest quartile of baseline NT-proBNP concentration (≥117.4 ng/L) had a 49% reduction in risk of T2DM [hazard ratio (HR) 0.51, 0.30–0.86, P = 0.01] relative to those in the lowest quartile. Two of the 4 tested variants in NPPA and NPPB (rs632793, rs198389) were associated with increased NT-proBNP concentrations and reduced risk of T2DM. For example, each copy of the minor allele of rs632793 was associated with increased NT-proBNP [β (SE) = 0.201 (0.063), P &lt; 0.01] and decreased T2DM risk (HR 0.91, 0.84–0.989, P = 0.026). CONCLUSIONS NT-proBNP concentrations that are high, but still within the reference interval, associate with reduced risk of incident diabetes in women and support a favorable role for natriuretic peptides in the prevention of T2DM.


BMJ ◽  
2019 ◽  
pp. l6204 ◽  
Author(s):  
Ming Ding ◽  
Jun Li ◽  
Lu Qi ◽  
Christina Ellervik ◽  
Xuehong Zhang ◽  
...  

AbstractObjectiveTo examine the association of consumption of dairy foods with risk of total and cause specific mortality in women and men.DesignThree prospective cohort studies with repeated measures of diet and lifestyle factors.SettingNurses’ Health Study, Nurses’ Health Study II, and the Health Professionals Follow-up Study, in the United States.Participants168 153 women and 49 602 men without cardiovascular disease or cancer at baseline.Main outcome measureDeath confirmed by state vital records, the national death index, or reported by families and the postal system. During up to 32 years of follow-up, 51 438 deaths were documented, including 12 143 cardiovascular deaths and 15 120 cancer deaths. Multivariable analysis further adjusted for family history of cardiovascular disease and cancer, physical activity, overall dietary pattern (alternate healthy eating index 2010), total energy intake, smoking status, alcohol consumption, menopausal status (women only), and postmenopausal hormone use (women only).ResultsCompared to the lowest category of total dairy consumption (average 0.8 servings/day), the multivariate pooled hazard ratio for total mortality was 0.98 (95% confidence interval 0.96 to 1.01) for the second category of dairy consumption (average 1.5 servings/day), 1.00 (0.97 to 1.03) for the third (average 2.0 servings/day), 1.02 (0.99 to 1.05) for the fourth (average 2.8 servings/day), and 1.07 (1.04 to 1.10) for highest category (average 4.2 servings/day; P for trend <0.001). For the highest compared to the lowest category of total dairy consumption, the hazard ratio was 1.02 (0.95 to 1.08) for cardiovascular mortality and 1.05 (0.99 to 1.11) for cancer mortality. For subtypes of dairy products, whole milk intake was significantly associated with higher risks of total mortality (hazard ratio per 0.5 additional serving/day 1.11, 1.09 to 1.14), cardiovascular mortality (1.09, 1.03 to 1.15), and cancer mortality (1.11, 1.06 to 1.17). In food substitution analyses, consumption of nuts, legumes, or whole grains instead of dairy foods was associated with a lower mortality, whereas consumption of red and processed meat instead of dairy foods was associated with higher mortality.ConclusionThese data from large cohorts do not support an inverse association between high amount of total dairy consumption and risk of mortality. The health effects of dairy could depend on the comparison foods used to replace dairy. Slightly higher cancer mortality was non-significantly associated with dairy consumption, but warrants further investigation.


2019 ◽  
Vol 110 (3) ◽  
pp. 666-674 ◽  
Author(s):  
Dong Hoon Lee ◽  
Meng Yang ◽  
Edward L Giovannucci ◽  
Qi Sun ◽  
Jorge E Chavarro

ABSTRACT Background Mushrooms are good dietary sources of important vitamins, minerals, and bioactive compounds which may be important in the prevention of chronic diseases. However, studies have not prospectively evaluated the potential health effects of mushrooms with respect to major cardiometabolic diseases. Objectives The aim of this study was to examine the association of mushroom consumption with major cardiometabolic diseases and mediating biomarkers in 2 large prospective US cohorts. Methods We followed 67,139 women from the Nurses’ Health Study (1986–2012) and 43,541 men from the Health Professionals Follow-up Study (1986–2012) who were free of chronic diseases. Mushroom consumption was assessed at baseline through the use of a food-frequency questionnaire. Cardiometabolic biomarkers were collected in subpopulations of the 2 cohorts. Cox proportional hazards models were used to estimate HRs and 95% CIs of cardiovascular disease (CVD), including coronary heart disease (CHD) and stroke, and type 2 diabetes (T2D), associated with mushroom consumption. Results We identified total 11,894 CVD (7,616 CHD; 4,278 stroke), and 10,206 T2D cases in &gt;2 million person-years of follow-up. In the pooled multivariable-adjusted analysis, participants who consumed ≥5 servings of mushrooms per week had no significantly different risk of total CVD (HR: 1.02; 95% CI: 0.91, 1.14), CHD (HR: 1.00; 95% CI: 0.87, 1.16), stroke (HR: 1.05; 95% CI: 0.87, 1.25), or T2D (HR: 1.04; 95% CI: 0.93, 1.16) than participants who consumed mushrooms &lt;1 time/mo. We consistently found no association between mushroom consumption and the aforementioned cardiometabolic diseases, in subgroups of sex, lifestyle factors, and medical conditions. Moreover, mushroom consumption was not associated with plasma biomarkers of lipids, insulin, and inflammation. Conclusions We found no association of mushroom consumption with biomarkers and risks of CVD and T2D in US adults. More large prospective cohort studies are warranted to investigate this association in other racial/ethnic groups.


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