Itsu promotes clean and nutritious eating, but it does not operate as a fully halal-certified restaurant chain in the UK. This often raises the question, is Itsu halal? While many of its vegetarian and seafood items are free from haram ingredients, there is a risk of cross-contamination, and the meat-based dishes are not certified halal. Muslim diners should either choose plant-based options or ask staff for specific ingredient details before ordering.