Dietary fiber intake and risk of prediabetes in China: results from the TCLSIH Cohort Study

Abstract High dietary fiber intake has been associated with a lower risk of diabetes, but the association of dietary fiber with prediabetes is only speculative, especially in China, where the supportive data from prospective studies is lacking. This study aimed to examine the association between dietary fiber intake and risk of incident prediabetes among Chinese adults. We performed a prospective analysis in 18,085 participants of the TCLSIH cohort study who were free of diabetes, prediabetes, cancer, and cardiovascular disease at baseline. Dietary data were collected using a validated 100-item food frequency questionnaire. Prediabetes was defined based on the American Diabetes Association diagnostic criteria. Cox proportional hazard models were used to estimate hazard ratios (HRs) and 95% confidence intervals (CIs). During 63,175 person-years of follow-up, 4,139 cases of incident prediabetes occurred. The multivariable HRs (95% CIs) of prediabetes for the highest versus lowest quartiles were 0.85 (0.75, 0.98) (P for trend =0.02) for total dietary fiber, 0.84 (0.74, 0.95) (P for trend <0.01) for soluble fiber, and 1.05 (0.93, 1.19) (P for trend =0.38) for insoluble fiber. Fiber from fruits, but not from cereals, beans, and vegetables was inversely associated with prediabetes. Our results indicate that intakes of total dietary fiber, soluble fiber, and fiber derived from fruit sources were associated with a lower risk of prediabetes.

Download Full-text

Consumption of Dietary Fiber in Relation to Psychological Disorders in Adults

Frontiers in Psychiatry ◽

10.3389/fpsyt.2021.587468 ◽

2021 ◽

Vol 12 ◽

Author(s):

Faezeh Saghafian ◽

Nafiseh Sharif ◽

Parvane Saneei ◽

Ammar Hassanzadeh Keshteli ◽

Mohammad Javad Hosseinzadeh-Attar ◽

...

Keyword(s):

Psychological Distress ◽

Dietary Fiber ◽

Lower Risk ◽

General Health Questionnaire ◽

Large Population ◽

Depression Scale ◽

Fiber Intake ◽

Total Dietary Fiber ◽

High Psychological Distress ◽

Dietary Fiber Intake

Background: Previous observational studies suggested a relationship between dietary fiber consumption and mental health, but the findings were conflicting. We evaluated the link between dietary fiber intake and prevalence of depression, anxiety, and psychological distress among a large population of Iranian adults.Methods: A cross-sectional study among 3,362 Iranian adults working in 50 health centers was done. Data of dietary intakes were collected through a validated semiquantitative dish-based 106-item food frequency questionnaire (FFQ). Anxiety, depression, and psychological distress were defined based on the Iranian validated version of Hospital Anxiety and Depression Scale (HADS) and General Health Questionnaire (GHQ).Results: After adjustment for potential confounders, participants in the top quartile of total dietary fiber intake had a 33% and 29% lower risk of anxiety and high psychological distress [odds ratio (OR): 0.67; 95% CI: 0.48, 0.95 and OR: 0.71; 95% CI: 0.53, 0.94, respectively] compared to the bottom quartile of intake. The highest total dietary fiber intake was also inversely related to a lower risk of depression in women (OR: 0.63; 95% CI: 0.45, 0.88) but not in men. Among overweight or obese participants, higher intake of dietary fiber was related to a decreased risk of high psychological distress (OR: 0.52; 95% CI: 0.34, 0.79). A high level of dietary fiber intake was related to a lower risk of anxiety in normal-weight individuals (OR: 0.50; 95% CI: 0.31, 0.80).Conclusion: Significant inverse associations between total dietary fiber intake with anxiety and high psychological distress were found in Iranian adults. More consumption of dietary fiber was also related to reduced odds of depression in women. More investigations with prospective nature are needed to affirm these findings.

Download Full-text

Dietary fiber intake from fresh and preserved food and risk of nasopharyngeal carcinoma: observational evidence from a Chinese population

Nutrition Journal ◽

10.1186/s12937-021-00667-8 ◽

2021 ◽

Vol 20 (1) ◽

Author(s):

Zhi-Ming MAI ◽

Roger Kai-Cheong NGAN ◽

Dora Lai-Wan KWONG ◽

Wai-Tong NG ◽

Kam-Tong Yuen ◽

...

Keyword(s):

Nasopharyngeal Carcinoma ◽

Dietary Fiber ◽

Dose Response ◽

Sun Exposure ◽

Fiber Intake ◽

Total Dietary Fiber ◽

Dietary Fiber Intake ◽

Fresh Vegetables ◽

Incident Cases

Abstract Background The role of dietary fiber intake on risk of nasopharyngeal carcinoma (NPC) remains unclear. We examined the associations of dietary fiber intake on the risk of NPC adjusting for a comprehensive list of potential confounders. Methods Using data from a multicenter case-control study, we included 815 histologically confirmed NPC incident cases and 1502 controls in Hong Kong, China recruited in 2014–2017. Odds ratios (ORs) of NPC (cases vs controls) for dietary fiber intake from different sources at different life periods (age 13–18, age 19–30, and 10 years before recruitment) were evaluated using unconditional logistic regression, adjusting for sex, age, socioeconomic status, smoking and drinking status, occupational hazards, family history of cancer, salted fish, and total energy intake in Model 1, Epstein-Barr virus viral capsid antigen serological status in Model 2, and duration of sun exposure and circulating 25-hydroxyvitamin D in Model 3. Results Higher intake of total dietary fiber 10 years before recruitment was significantly associated with decreased NPC risk, with demonstrable dose-response relationship (P-values for trend = 0.001, 0.020 and 0.024 in Models 1–3, respectively). The adjusted ORs (95% CI) in the highest versus the lowest quartile were 0.51 (0.38–0.69) in Model 1, 0.48 (0.33–0.69) in Model 2, and 0.48 (0.33–0.70) in Model 3. However, the association was less clear after adjustment of other potential confounders (e.g. EBV) in the two younger periods (age of 13–18 and 19–30 years). Risks of NPC were significantly lower for dietary fiber intake from fresh vegetables and fruits and soybean products over all three periods, with dose-response relationships observed in all Models (P-values for trend for age 13–18, age 19–30 and 10 years before recruitment were, respectively, 0.002, 0.009 and 0.001 for Model1; 0.020, 0.031 and 0.003 for Model 2; and 0.022, 0.037 and 0.004 for Model 3). No clear association of NPC risk with dietary fiber intake from preserved vegetables, fruits and condiments was observed. Conclusion Our study has shown the protective role of dietary fiber from fresh food items in NPC risk, but no association for total dietary fiber intake was observed, probably because total intake also included intake of preserved food. Further studies with detailed dietary information and in prospective settings are needed to confirm this finding, and to explore the possible underlying biological mechanisms.

Download Full-text

Dietary fiber intake and risk of postmenopausal breast cancer defined by estrogen and progesterone receptor status-A prospective cohort study among Swedish women

International Journal of Cancer ◽

10.1002/ijc.23060 ◽

2007 ◽

Vol 122 (2) ◽

pp. 403-412 ◽

Cited By ~ 44

Author(s):

Reiko Suzuki ◽

Tove Rylander-Rudqvist ◽

Weimin Ye ◽

Shigehira Saji ◽

Herman Adlercreutz ◽

...

Keyword(s):

Breast Cancer ◽

Cohort Study ◽

Progesterone Receptor ◽

Dietary Fiber ◽

Prospective Cohort ◽

Postmenopausal Breast Cancer ◽

Progesterone Receptor Status ◽

Fiber Intake ◽

Dietary Fiber Intake ◽

Estrogen And Progesterone Receptor

Download Full-text

863 Higher Dietary Fiber Intake is Associated With Lower Risk of Crohn's Disease but Not Ulcerative Colitis - a Prospective Study

Gastroenterology ◽

10.1016/s0016-5085(12)60559-9 ◽

2012 ◽

Vol 142 (5) ◽

pp. S-148 ◽

Cited By ~ 1

Author(s):

Ashwin N. Ananthakrishnan ◽

Hamed Khalili ◽

Punyanganie S. de Silva ◽

Joshua R. Korzenik ◽

Leslie M. Higuchi ◽

...

Keyword(s):

Ulcerative Colitis ◽

Crohn’S Disease ◽

Crohn's Disease ◽

Prospective Study ◽

Dietary Fiber ◽

Lower Risk ◽

Fiber Intake ◽

Dietary Fiber Intake ◽

A Prospective Study

Download Full-text

Interrelationships between age, total dietary fiber intake and breath methane in humans

Nutrition Research ◽

10.1016/s0271-5317(00)00184-6 ◽

2000 ◽

Vol 20 (7) ◽

pp. 929-940 ◽

Cited By ~ 8

Author(s):

Judlyn Fernandes ◽

Thomas MS Wolever ◽

A Venketeshwer Rao

Keyword(s):

Dietary Fiber ◽

Fiber Intake ◽

Total Dietary Fiber ◽

Dietary Fiber Intake ◽

Breath Methane

Download Full-text

Dietary Fiber Intake and Cardiometabolic Conditions among Adult Survivors of Childhood Cancer: A Report from the St. Jude Lifetime Cohort Study

The FASEB Journal ◽

10.1096/fasebj.29.1_supplement.736.25 ◽

2015 ◽

Vol 29 (S1) ◽

Author(s):

Yinan Jia ◽

Fang Fang Zhang ◽

Rohit Ojha ◽

Jennifer Lanctot ◽

Wassim Chemaitilly ◽

...

Keyword(s):

Cohort Study ◽

Childhood Cancer ◽

Dietary Fiber ◽

Adult Survivors ◽

Fiber Intake ◽

Dietary Fiber Intake ◽

Survivors Of Childhood Cancer

Download Full-text

Dietary fiber intake and the risk of bladder cancer in the Prostate, Lung, Colorectal and Ovarian (PLCO) cohort

Carcinogenesis ◽

10.1093/carcin/bgz187 ◽

2019 ◽

Vol 41 (4) ◽

pp. 478-482

Author(s):

Jindan Luo ◽

Xin Xu

Keyword(s):

Bladder Cancer ◽

Cancer Risk ◽

Dietary Fiber ◽

Fiber Intake ◽

Soluble Fiber ◽

Bladder Cancer Risk ◽

Dietary Fiber Intake ◽

Diet History Questionnaire ◽

Diet History ◽

Insoluble Fiber

Abstract Dietary fiber intake has been implicated as a protective factor for several human cancers in multiple epidemiologic studies. However, little is known about the effect of fiber intake on bladder cancer. This study examines the association between dietary fiber intake and bladder cancer risk among participants in the Prostate, Lung, Colorectal and Ovarian Cancer Screening Trial. A total of 101 721 participants were included in this study as they completed both the baseline questionnaire and the diet history questionnaire (cancer free before completion of the diet history questionnaire). Hazard ratios (HRs) and the corresponding 95% confidence intervals (CIs) were estimated using the Cox proportional hazards regression model. After a median of 12.5 years of follow-up, 776 new cases of bladder cancer were identified. Higher intake of total fiber, insoluble fiber and soluble fiber were not significantly associated with a reduced risk of bladder cancer. The multi-adjusted HRs (95 CIs) of highest versus lowest tertile of intake were 0.83 (0.66–1.04) for total fiber (P for trend = 0.098), 0.83 (95% CI: 0.67–1.03) for insoluble fiber (P for trend = 0.092) and 0.86 (95% CI: 0.68–1.08) for soluble fiber (P for trend = 0.168), respectively. There was no significant interaction of potential confounders, including education, body mass index and smoking status, with total fiber intake on bladder cancer risk. In summary, the findings of this prospective study show that there is no obvious evidence for a link between dietary fiber consumption and bladder cancer risk. Further large cohort studies are warranted to confirm these findings.

Download Full-text