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Dietary fiber intake and risk of incident disabling dementia: the Circulatory Risk in Communities Study

A high fiber diet may be helpful in warding off dementia.

This study investigated the incidence of dementia in a study population comprising of consumers and non-consumers of high fiber foods. Among the 3,739 Japanese adults aged 40-64 years who participated in this study, 670 of them were diagnosed with dementia over the next 19.7 years. 

Researchers found a low rate of dementia among devout consumers of foods rich in fiber, especially soluble fiber. Evidence from this study show that high ingestion of dietary fiber may have a positive impact in reducing dementia risk.

Research Summary Information

  • 2022
  • Kazumasa Yamagishi, Koutatsu Maruyama, Ai Ikeda, Masanori Nagao, Hiroyuki Noda, Mitsumasa Umesawa, Mina Hayama-Terada, Isao Muraki, Chika Okada, Mari Tanaka, Rie Kishida, Tomomi Kihara, Tetsuya Ohira, Hironori Imano, Eric J Brunner, Tomoko Sankai, Takeo Okada, Takeshi Tanigawa, Akihiko Kitamura, Masahiko Kiyama, Hiroyasu Iso
  • Department of Public Health Medicine, Faculty of Medicine, and Health Services Research and Development Center, University of Tsukuba, Tsukuba, Japan. Osaka Center for Cancer and Cardiovascular Disease Prevention, Osaka, Japan. Ibaraki Western Medical Center, Chikusei, Japan. Department of Bioscience, Graduate School of Agriculture, Ehime University, Matsuyama, Japan. Department of Public Health, Juntendo University, Tokyo, Japan. Department of Epidemiology, Fukushima Medical University, Fukushima, Japan. Public Health, Department of Social Medicine, Osaka University Graduate School of Medicine, Suita, Japan. Department of Public Health, Dokkyo Medical University, Mibu, Japan. Yao City Public Center, Yao City Office, Yao, Japan. Saw Swee Hock School of Public Health, National University of Singapore, Singapore, Singapore. Institute of Epidemiology and Health Care, University College London, London, UK. Department of Public Health and Nursing, Faculty of Medicine, University of Tsukuba, Tsukuba, Japan. Research Team for Social Participation and Community Health, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
  • Yes, Free full text of study was found:
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