When traveling I always carry 'emergency food'. Nuts, low-carb bars, and so on. Especially for airplanes as there is nothing on the plane that is worth a carb.

On vacation I do watch myself, but there are things unique to a foreign land that I would regret if I didn't at least have a small taste. It's part of being there, tasting their food, listening to their music, drinking their beverages and immersing myself in their culture to the extent to which I am able

Bob