food intolerances

Someone asking about gluten and dairy intolerance, visiting Sardinia.

I cannot speak of shopping in Sardegna but in general gluten avoidance or intolerance are understood and covered by EU regulations.
Senza glutine means without gluten. Which is the term used. Celiaco means celiac. The first c is pronounced ch, the second as a k.
Dairy foods are latticini. Milk is latte, despite widespread English-speaking-world belief that it means.a light brown coffee. You are wanting to avoid prodotti di latte, dairy products. Panna as in panna cotta or in a fridge container is cream. Formaggio is cheese.
You may find almond or soy milk. Mandorla, soia.
In supermarkets and small shops you will find same ingredient requirements on packages as in rest of EU but with vocabulario as above perhaps also English etc. In markets as well as shops you will find unprocessed things.
Italy is not all pizza and pasta. You should find abundant fresh fish and meats (but I’m hoping especially fish in Sardinia) and fruit and vegetables in particular.