London is such a great city for many reasons, one of which is the amazing range and high standard of food available.
Fortunately restaurants are also so much more clued in on allergies and intolerances that I rarely have any issues with them accommodating me. However this isn't universal everywhere you go.
Last weekend in a trip across the channel I found myself in an argument with a restaurant manager as to whether rice contained gluten in it! Apparently 'The customer is always right' doesn't apply in France!
Fortunately rice, potatoes, corn, quinoa, buckwheat and millet are all gluten free so there are plenty of carb choices for the gluten intolerant. It is rare for a restaurant to stock gluten-free bread, some have gluten-free pasta, but it's hard to think of a type of restaurant that couldn't serve you a side of rice or potatoes.
Clearly I could have saved myself an argument by just saying that I wanted rice rather than pasta! In the end I got my rice (he checked I was right with the chef!) but it's certainly taught me not to assume that everyone know what does or doesn't contain gluten and if in doubt to check with the chef!