Hamdling spicy stuff is all about conditioning. If you constantly eat spicy stuff, you’ll easily be able to eat spicy stuff. If you haven’t had anything spicy in a while, even a little bit of spice can feel very spicy.

At least that’s how it works for your taste buds. I’m not sure conditioning so much applies to your gut. The gut is more about being on top of your gut health in other ways. Strictly avoiding the other things (other than spicey stuff) that your GI tract is sensitive to, getting enough fiber, etc.

But at the intersection of conditioning and gut health lies spicy stuff tolerance.