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Gastrointestinal or GI motility disorders are characterized by irregular gastrointestinal tract movements, disrupting food transit from the mouth to the anus. They are caused by damage or dysfunction in gut muscles or nerves. These disorders can cause symptoms such as severe constipation, diarrhea, abdominal pain, and swallowing difficulties. Disorders can affect any segment of the GI tract and range widely in severity, from common conditions like GERD to life-threatening conditions like...
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The gastrointestinal (GI) tract, extending from the mouth to the anus, plays a pivotal role in the digestion and absorption of nutrients. This process involves both mechanical and chemical actions facilitated by various enzymes.
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The gastrointestinal elimination process involves a complex interplay of neural and hormonal mechanisms that coordinate the final waste removal from the body. This intricate operation encompasses the absorption of water and electrolytes, vital for transforming the remaining indigestible food matter into feces. The large intestine is pivotal in water and electrolyte absorption, forming feces from unabsorbed minerals, undigested food, bacteria, bile pigments, and shed epithelial cells. Essential...
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Broccoli consumption affects the human gastrointestinal microbiota.

Jennifer L Kaczmarek1, Xiaoji Liu2, Craig S Charron3

  • 1Division of Nutritional Sciences, University of Illinois at Urbana-Champaign, 449 Bevier Hall, 905 S. Goodwin Ave, Urbana, IL, 61801, United States.

The Journal of Nutritional Biochemistry
|October 15, 2018
PubMed
Summary

Consuming broccoli significantly alters the gut microbiota in healthy adults, impacting bacterial composition and function. This cruciferous vegetable influences microbial pathways related to metabolism and endocrine systems.

Keywords:
BacteroidesBrassica vegetablesCruciferous vegetablesGlucosinolatesMicrobiome

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Area of Science:

  • Microbiology
  • Nutrition Science
  • Human Health

Background:

  • The human gastrointestinal microbiota plays a crucial role in health outcomes.
  • Limited understanding exists regarding how specific foods, like cruciferous vegetables, impact gut microbial composition.
  • Broccoli is rich in fiber and glucosinolates, compounds metabolized by gut microbes.

Purpose of the Study:

  • To investigate the impact of daily broccoli consumption on the gastrointestinal microbiota of healthy adults.
  • To analyze changes in bacterial composition and functional pathways following broccoli intake.

Main Methods:

  • A randomized, crossover study involving 18 healthy adults over two 18-day treatment periods with a 24-day washout.
  • Participants consumed 200g cooked broccoli and 20g raw daikon radish daily.
  • Fecal samples were analyzed for microbial composition and functional predictions.

Main Results:

  • Broccoli consumption altered bacterial communities (P=.03), decreasing Firmicutes and increasing Bacteroidetes and Bacteroides.
  • Effects were more pronounced in individuals with a body mass index <26 kg/m².
  • Broccoli intake enhanced microbial pathways for endocrine system function, transport, and energy metabolism.

Conclusions:

  • Broccoli consumption significantly impacts the composition and function of the human gastrointestinal microbiota.
  • Dietary intake of cruciferous vegetables can modulate gut microbial populations and their metabolic activities.
  • Further research can explore targeted dietary interventions for gut health.