I spent a week traveling around Greece and could hardly eat anything because of the huge amount of salt in it. Restaurant food, of course. Maybe they do better at home, but cheese is loaded with saturated fat. Horrible for your heart, as is salt.
On my trip, I stopped at little grocery stores and bought green veggies, which were in short supply in restaurant food. Washed them in bathtub in my hotels.
Aside from the food, the trip was great, especially a stop at Crete to see the ruins of Heraklion there. Fabulous old palace and a small museum with artifacts.
We’ve had family trips to over ten cities in Europe. Athens and Santorini had the best restaurants for us. They generally pushed tables together for the 20 of us. The food was tasty. They always provided something gratis at the end, such as wine or a tasty dessert. Even though it waxes late November we could often eat outside.