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BRS5 — Gut-Brain Axis & Enteric Nervous System

BRS5(KC1) - Fermentable Fibre Sufficiency​

1. Ambition​

Maintain fermentable-fibre sufficiency so microbial fermentation, short-chain fatty acid generation, and downstream gut-barrier signalling remain stable.

2. Shared Biological Pool​

  • Inulin/GOS ← onions, chicory, legumes
  • Pectin/soluble fibre ← oats, apples, flax seeds
  • Resistant starch ← cooled potatoes, cooled rice, green bananas

3. Biological Importance​

Fermentable-fibre availability determines microbiome capacity to produce beneficial metabolites rather than simply increasing fibre bulk [Wastyk et al., 2021; Silva et al., 2020]. When these substrates are chronically weak, microbial fermentation, SCFA signalling, and ecological stability are harder to sustain.

4. Connected Mechanisms​

Functional Mechanisms​

Primary Mechanisms​

5. Key References​