The vagus nerve is a major communication pathway between the gut and the brain, with a large proportion of fibres carrying signals from the body to the brain. Yona is designed to support this signalling pathway, not just the symptoms that follow.
How Yona Works
Supporting the gut-brain connection at the signalling level
Vagal signalling influences digestive function
The vagus nerve runs directly to your stomach, intestines, and liver. It regulates motility, enzyme secretion, and the rate at which your gut processes food. When vagal tone is low, these processes slow and dysregulate.
The gut-brain axis signals in both directions
Around 80% of vagal fibres carry signals upward, from gut to brain. That means your digestive state directly influences how your nervous system responds to stress, and chronic stress feeds back into worsening gut function.
Thiamine metabolism is genetically linked to gut motility
A 2026 genome-wide study of 268,000 people identified specific gene variants in thiamine transport pathways as significant predictors of bowel motility. Vagus+ is formulated directly around this pathway.
OUR EXPERTS
formulated with clinical perspective
Yona’s protocol is developed alongside clinicians and nutrition practitioners specialising in autonomic regulation, digestive dysfunction, and nutrient repletion, ensuring each formulation reflects real-world patient patterns, not theoretical models.
dr alisha damani
MBChB
Clinical Advisor
An award-winning Medical Doctor and High Performance Coach specialising in autonomic nervous system function and its effect on digestive health. Alisha ensures Yona's approach reflects how symptoms actually present in practice, particularly in patients with stress-driven or treatment-resistant gut issues.
david mcCollum
Cert Nat ANP
Clinical Nutritionist
A certified Gut Health Practitioner with over 25 years of experience in clinical nutrition and functional health. David specialises in complex digestive dysfunction, nervous system recovery, and targeted nutrient repletion, drawing directly on casework with patients who haven't responded to conventional approaches.
What Yona Users Report
Here's what Yona customers who completed our independent protocol-tracking survey told us†
82%
Improved digestive comfort
Improvements across bloating, reflux, and gut sensitivity
52%
Felt calmer and less stressed
Broader nervous system regulation benefits, including better sleep
57%
Reduced digestive medication
Reported reducing or stopping acid-suppressing medication after 12 weeks
† Survey data represents self-reported outcomes from Yona customers. Individual results may vary. Yona Vagus+ is a food supplement, not a medicine. If you are taking prescribed medication, consult your GP before making any changes to your treatment.
your gut doesn't need more bacteria. it needs a better signal.
