["Gut microbiome diversity","Cognitive function & memory","Mood regulation & anxiety","Neurogenesis (brain cell growth)","Immune modulation","Sleep quality","Inflammation reduction"]

The Gut & Brain Axis Box

Feed your microbiome. Grow your brain. The two are the same system.

The gut and brain are connected by the vagus nerve and communicate constantly via the gut-brain axis. 90% of serotonin is produced in the gut. Specialist medicinal mushrooms stimulate Nerve Growth Factor (NGF) to literally regrow brain cells, while fermented foods flood the gut with diverse probiotic strains that reduce neuroinflammation, regulate mood, and sharpen cognition. This box is the most advanced protocol in the Root & Reason range.

The Science

The Gut-Brain Axis is the bidirectional communication highway between your enteric nervous system (the "second brain" in your gut) and your central nervous system. Lion's Mane is the only food known to stimulate NGF — a protein that triggers the growth and repair of brain cells. Fermented foods containing live cultures produce short-chain fatty acids (SCFAs) that cross the blood-brain barrier and directly reduce neuroinflammation. Combined, these ingredients represent the frontier of nutritional neuroscience.

What's in the Box

Lion's Mane mushroom (fresh or dried)
Reishi mushroom (dried / powder)
Shiitake mushroom
Maitake mushroom
Live kimchi (unpasteurised)
Raw sauerkraut (unpasteurised)
Organic miso paste (unpasteurised)
Raw kombucha
Kefir (milk or water)
Prebiotic leeks and garlic

QR Code Resources

Every box includes a QR code that unlocks your personal resources hub — with all the recipes, activation protocols, and science notes for your specific box.

  • 0 recipes tailored to this box
  • Activation protocols for every ingredient
  • The Mustard Seed Secret science notes
  • Inhibitor warnings (what to avoid)

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The Gut & Brain Axis Box£24.99/delivery
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