Vagus One feeds it.
Most people have never heard of it. It runs from the base of your brain to your lungs, your heart and your gut, and it's talking to all of them, all day.
It's one long nerve.From the base of your brain to your gut. The longest cranial nerve in your body.
It's your off switch.Your body switches on when life asks. This nerve tells it the moment has passed: slow the heart, digest the meal, repair overnight. Scientists call it rest and digest.
When it struggles, you feel it everywhere.Wired at 11pm. Bloated in a deadline week. Eight hours that feel like four. Not separate problems. One switch.
See what the vagus nerve does there.
Vagus is Latin for wandering. It wanders from your brainstem, past your heart and lungs, all the way to your gut.
About 80% of its fibres carry messages up, from your body to your brain. Your gut reports in all day.
Your heart's own pacemaker runs at around 100 beats a minute. The vagus nerve's steady brake holds it nearer 60 to 80 at rest.
It runs the muscles of your throat and voice box. That's why humming and singing turn up on every vagus-nerve list.
Tap the one that sounds like you
Not four problems. One switch.
“My general regulation, nerves, stomach, sleep, have all improved and I've felt supported.”Jules Z · Verified buyerShop Vagus One →
“Great product that reduced my acid reflux massively. It took a few months, but I'd had it for years.”Mary Haley · Verified buyerShop Vagus One →
“The best thing is being able to sleep without the fear of waking up with reflux, and to have a meal and not panic.”Liz H. · Verified buyerShop Vagus One →
“I also have more motivation to do things where before I couldn't be bothered.”Eileen B. · Verified buyerShop Vagus One →
Yona customer survey, 2026, self-reported. Individual experiences; results vary.
Every “stand down” signal your vagus nerve sends is carried by one chemical messenger. It's built from two pieces.
Energy joins the two pieces into one messenger. Your body has to keep doing this, all day.
The messenger carries the signal, and the switch flips off. Your body can only send what it can make.
Vagus One gives your body both pieces, and the energy to put them together.
Scientists call the messenger acetylcholine
Vagus One

The energy to keep sending.
Both pieces of the messenger.
A calmer baseline, without sedation.
Two capsules with breakfast. That's the routine.
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noticed less brain fog and felt sharper
reported better digestion
had more energy through the day
felt calmer and less reactive to stress
Yona customer survey, 2026, self-reported. Individual experiences; results vary. Food supplements are not a substitute for a varied diet or prescribed medication.
My general regulation, nerves, stomach, sleep, have all improved and I've felt supported.Jules Z · Verified buyer
After the second/third bottle I realised I'd virtually stopped burping completely. I've had this problem for YEARS.LBM · Verified buyer
There's only a handful that I can say made a tangible, measurable difference. The longer I take it, the better I feel.Yvonne M. · On camera
I can eat anything I want without thinking about acid reflux. My digestion feels better.Saintia Mapuku · Verified buyer
Within the first week I felt a massive difference. I have less bloating… Feeling a lot calmer too.Kathleen Monaghan · Verified buyer
Developed with a medical and clinical advisory team spanning medicine and nutrition.
In for four as the dots travel down. Out for eight as the ring glows. The long breath out is the half your body reads as safe.
That was the in-the-moment half. Vagus One is the everyday half: what the nerve runs on.
Sit down for this, and stop if you feel light-headed.
★ 4.6 from 1,000+ reviews · Free UK delivery · Pause or cancel anytime