I have been on several Equinox cruises. I have to eat gluten free. As stated, everything in the buffet is marked if gluten free and there is a separate area for gf desserts. Personally, I have not had much luck reviewing the menu the night before and requesting the entree be gluten free. I usually get told it can’t be done. Be careful, because they may say it’s gluten free when I can see it’s not! I personally think the gf bread is terrible. I bring my own gf bagels on board and bring them to breakfast so I can have my smoked salmon on them.
Also, in the buffet, the gf pizza and pasta are very good. And gf macaroons at Cafe Al Bacio are excellent.