(TW ED) What low calorie foods can I find here?

Hello, I moved here recently for work and I have been suffering from an ED for about 2 years now.

I typically don’t eat more than 800 calories any day, and back home I would just eat egg whites and strawberries.

I expected that, given the intense diet culture here, I would easily be able to find 0kcal everything, but it’s been difficult since my Japanese is still at a low level.

Any recommendations for zero/ low calorie foods and drinks would be super appreciated.

Thank you for reading.