Skip to main content
  1. News
  2. Science & Space

Diet high in fiber proven to prevent asthma and allergies

See also

A diet high in fiber from vegetables and fruit was shown to produce an increased immune response to allergens and to reduce the instance of allergic asthma in studies of mice by Benjamin Marsland from Lausanne University Hospital in Switzerland and colleagues that was published in the Jan. 6, 2014, issue of the journal Nature Medicine.

The researchers fed three groups of mice a normal diet, a low-fiber diet, and a high-fiber diet. The low-fiber diet was equivalent to the amount of fiber most people in Europe and the United States eat daily in vegetables and fruit.

The mice that ate the high-fiber diet had a high tolerance for dust mites compared to the other two groups of test mice.

The researchers found that the immunity to allergens and a resistance to the development of asthma was the result of a high-fiber diet.

A diet high in fruits and vegetables makes a larger amount of fermentable fiber available to bacteria in the gut. The bacteria convert the fiber into short-chain amino acids. The amino acids enter the blood stream through the intestines and end up in bone marrow. The bone marrow manufactures immune proteins to common allergens and produces anti-inflammatory proteins that help prevent asthma.

The researchers plan human studies to confirm the mouse trial results. Mice and human digestive and lung systems are almost identical.

The researchers stress that eating more fruit and vegetables can prevent allergies, allergic asthma, and asthma.



  •  Day 17
    Israel continues their ravaging bombardment on Gaza as the conflict wages on
  • MH17 victims arrive home
    40 bodies of the MH17 plane crash return to a somber homecoming in Holland
    Top News
  • Military advisers to Ukraine
    President Obama announces the deployment of military advisers to Ukraine
  • Bubonic plague in China
    A bubonic plague outbreak in Yumen prompts China to quarantine the city
    World News
  • Air Algierie disappearance
    A flight headed from Burkina Faso to Algeria disappears from radar over Mali
  • Windows Phone training portal
    Microsoft launches Windows Phone training portal in attempt to woo consumers

Related Videos:

  • Buzz Aldrin and the American flag on the moon
    <iframe width="420" height="315" src="//;allowfullscreen=true&amp;autoplay=1"></iframe>
  • Orbital Sciences rocket brings supplies and experiments to space station
    <div class="video-info" data-id="518318477" data-param-name="playList" data-provider="5min" data-url=""></div>
  • Liftoff Apollo 11
    <iframe width="420" height="315" src="//;allowfullscreen=true&amp;autoplay=1"></iframe>