first of i should introduce myself. I'm a 23 year old guy living from Sweden, the country with maybe the highest levels of celiac disease in the world what I've heard. I've been a celiac almost my entire life, i got my diagnose when i was 2 and have been on a gluten-free diet ever since. I'm not sure what sensitivity levels there are, but if i mistakenly eat something with gluten and it can be very small amount it take almost precisely on hour before everything thats in my stomach, well, comes back up so to speak.
To my question then, I've been thinking of going to Japan for at least one year studying the language and culture. But my celiac is holding me back (which it have my whole life), in Sweden it's a very commonly known thing and you can order food almost everywhere that is gluten-free, so i have become very comfortable with living here with my celiac. And so I'm a little afraid that it's not so common in Japan and what i have read it isn't. So my question for anyone living in Japan on a gluten-free diet on the forum, how does it work out? Can you ask for gluten-free food at restaurants? And how easy is it finding gluten-free ingredients, such as soy sauce for example?