Constantine's Ark Restaurant & Bar| Sultanahmet

The menu has an extensive, clearly marked vegetarian section. Positive reviews from multiple diners confirm that vegetarian options are satisfying, but the restaurant does not mention a dedicated preparation area, and the kitchen is assumed to be shared.

HappyCow describes an extensive, clearly marked vegetarian section with 'quite a few vegan options' and a separate vegan menu. However multiple reviews warn that the vegan menu is not fully vegan (items may contain dairy or egg) and that staff knowledge varies. Diners must explicitly request vegan versions and verify ingredients. Shared kitchen, no dedicated equipment.

Gluten-free bread is available upon request and a dedicated gluten-free menu exists, according to customer reviews. However, there is no dedicated kitchen or dedicated fryer, and the venue is not listed on FindMeGlutenFree. No accreditation is mentioned. Cross-contamination risk in a shared kitchen is acknowledged.

Some HappyCow reviews note that staff can remove dairy from dishes, including vegan menu items, when a request is made. The restaurant does not offer a marked dairy-free section. Accommodation depends on customer requests.

Reviews state the complimentary bread likely contains egg, but staff will provide egg-free bread upon request. No marked menu. Accommodation is request-based and may depend on staff awareness.