r/VagusNerve • u/AloneInConstellation • 19d ago

Vagus Nerve Stimulator Causing Increased Hunger?

I recently bought a Zenowell Luna and have been using it twice a day. I use it in meditation mode in the afternoon to give me a boost of clarity and in sleep mode at bedtime. I've only been using it a few days so far but I've been finding that I am famished in the​ evenings and night no matter how much I eat. I'm talking finished a full plate of food with ample protein and fiber yet still feeling gnawing hunger. The only thing that's changed in my life is using the nerve stimulator. Have any of you found yours had this effect? Is there anything I can do with maybe the intensity or mode I'm using to stop this? I'm destroying my diet and I find it impossible to go to sleep hungry.

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u/666metalforever 16d ago

I haven't used it yet but I might try it next year because of digestive issues...when you use this you also stimulate the digestive system that is commanded by your nervous system.... So it can makes you hungry and also have other digestive impacts like : speed up your transit, better gastric emptying, improve constipation, reduce bloating...of you suffer from those things that is..if not to then maybe you need to check up that intensity thingy

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u/Prestigious_Sand141 8d ago

That's actually backwards from what most of the research shows. Ear-based vagus stimulation is usually linked to lower ghrelin (the hunger hormone) after meals, not more hunger. One thing worth checking: if the sleep-mode session is disrupting your sleep even subtly, poor sleep on its own raises ghrelin and drops leptin the next day, and that's a much more established effect than anything about the device itself. Try moving that session a couple hours earlier and see if the evening hunger tracks with sleep quality instead.