I have not been able to get a definite answer on this. As far as I can tell, very FEW if ANY
e-liquids will contain gluten. Even so, the amounts would be trace, and I'm not sure it'll be metabolized the same, as if it were ingested orally (vapor isn't passing through your digestive tract). I'm also pretty sure that most cigarettes are prone to containing trace amounts of gluten (primarily in the paper and filter). I would think that if you havn't had an adverse reaction to cigarettes, or
vaping thus far (due to gluten), you aren't likely to.
Please let me know if that is a satisfactory answer. If you need a little more meat, I can try to dig a bit deeper for you.
And for what it's worth... I try to avoid Gluten whenever possible (i've found the stress from trying to eliminate ALL gluten can be worse than the gluten itself), and have had no ill effects from
vaping. I have notice an improvement since I quit smoking though
Ty