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Fiber Can Delay Brain Inflammation and Aging

fiber-rich foods

Story at-a-glance -

  • Fiber’s benefits extend far beyond your digestive tract to offer bodywide benefits — even in your brain
  • A high-fiber diet may help stave off chronic systemic inflammation in your brain, a hallmark of aging linked to cognitive decline
  • In an animal study, a high-fiber diet reduced inflammation in the brain’s microglia, a type of immune cell that, when inflamed, is linked to cognitive decline
  • One type of soluble dietary fiber that may be particularly useful for increasing butyrate-producing bacteria in your gut is inulin
  • The key may lie with butyrate, a short-chain fatty acid (SCFA) that’s produced through the fermentation of dietary fibers in your intestinal tract
  • Inulin is a type of prebiotic fiber found in onions, leeks, garlic, asparagus, Jerusalem artichoke and many other foods

By Dr. Mercola

I recommend consuming 25 to 50 grams of fiber per 1,000 calories consumed, daily, as a foundation of optimal health. Though your body can’t digest it, fiber is an incredibly important carbohydrate because it aids in digestion, helps regulate blood sugar levels, plays a role in weight maintenance and much more.


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