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6d ago

Study Links Midlife High-Quality Carbs and Fiber to Healthy Aging

Research published in JAMA Network Open reveals a 6–37% greater likelihood of healthy aging in women with midlife diets rich in unrefined carbohydrates and fiber.

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A diet packed with fiber and high-quality carbs in midlife was linked to healthier aging in a new study.

Overview

  • The study analyzed over 47,000 women from the Nurses’ Health Study, tracking midlife diets from 1984–2016 and health outcomes in later life.
  • Healthy aging was defined as the absence of 11 major chronic diseases, preserved cognitive and physical function, and good mental health, met by 3,706 participants.
  • Higher intakes of high-quality carbohydrates—such as those from whole grains, fruits, vegetables, and legumes—and dietary fiber were associated with a significantly higher likelihood of healthy aging.
  • Conversely, diets high in refined carbohydrates, including added sugars, refined grains, and starchy vegetables, were linked to a 13% lower likelihood of healthy aging.
  • The authors emphasized the need for further research into the biological mechanisms and replication of findings in more diverse populations beyond the predominantly white cohort.