Nutrition · 8 April 2026 · 8 min read
The gut-brain axis in plain English
Why what you feed your microbiome at 7am shapes your concentration at 3pm — and the four levers that actually matter.
The vagus nerve is a two-way street. Roughly ninety percent of its traffic runs from gut to brain, carrying short-chain fatty acids, neurotransmitter precursors and inflammatory signals from a microbiome that outnumbers your own cells.
Four levers
Three of the four come in the pouch
H-1 carries 11 organic greens, the Chromatic polyphenol matrix, and 5 billion CFU of shelf-stable Lactobacillus and Bifidobacterium per serving. The fourth lever is yours.
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