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Gut Health Canvas: Digestive Health

How does the microbiome affect digestion?

Introducing our Gut Health Canvas

In this series, we dive into the links between the gut and various aspects of our mental and physical health.

Physical Health: Digestive Health

How does the microbiome affect digestion?

  • Dietary fiber serves as food for the beneficial bacteria in our gut. When the gut bacteria consume fiber in the large intestine, they produce metabolites such as short-chain fatty acids (butyric acid, acetic acid, and propionic acid) that keep the colon healthy.
  • Fiber also supports healthy bowel movements: Soluble fiber dissolves in water and creates a gel-like substance that slows the movement of food through the digestive tract. Insoluble fiber makes stool softer and easier to move through the digestive system. This promotes bowel-movement regularity and prevents constipation and hemorrhoids.

Microbiome and IBS

  • The relationship between gut microbiome imbalance (dysbiosis) and IBD is complex and dynamic.
  • IBD is characterized by a depletion in Actinobacteria, Firmicutes, and Bacteroidetes.
  • Ni et al. (2017) found that while the microbiota plays a key pathogenic role in IBD, chronic inflammation, in turn, promotes dysbiosis by altering the environment of the gut.
Sources:
Standford 2024
Gubatan et al. 2022
Ni et al. 2017
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