Glutenfree Japanese Cafe & Restaurant "Oh Nana!"

Oh Nana is a 100% gluten-free kitchen. No gluten-containing products are allowed on the premises. The owner has coeliac disease herself, and her daughter does as well. Multiple coeliac diners report zero symptoms across visits. The venue advertises 'Japan-first Western-standard celiac compatibility.' Reported safety features include a dedicated kitchen, a dedicated fryer, dedicated kitchen space, and staff trained to change gloves/clean surfaces.

The kitchen is structurally dairy-free: the venue's own site states '乳製品不使用' (no dairy products used) and a reviewer describes it as a 'completely Gluten-Free and Dairy free kitchen'. Multiple diners flag the venue as 'Good for dairy-free' (11 reports) and the staff offers dairy-free alternatives for drinks.

The restaurant's own site states "no nuts used" alongside its gluten-free and dairy-free claims, which indicates a structurally nut-free kitchen. No reviews flag any nut incidents.

Vegan options are clearly marked on the menu, and 'Good vegan options' is a commonly tagged feature. However, the kitchen also serves chicken, beef, pork, and fish (bonito-flake dashi is a base for several dishes), so prep is shared.

Vegetarian options rank among the most-tagged features, and multiple coeliac diners highlight vegetarian-friendly dishes. The kitchen still serves meat and fish, so the venue is best read as a non-vegetarian kitchen with marked vegetarian options.

Staff actively accommodated a family's seafood, avocado and oat allergies, with the chef explaining bonito-flake bases and 'double-checking before they finalized our meals.' Only one diner explicitly flagged 'Good for shellfish-free,' so this is best treated as available-on-request rather than a marked or dedicated feature.

One coeliac reviewer described the menu as "low FODMAP friendly" alongside being entirely gluten-free and dairy-friendly, though no other source confirms a low-FODMAP protocol.