Prologue and purpose: Celiac disease is complexed, chronic autoimmune disorder caused by gluten and gluten similar proteins intake that affect genetically sensitive individuals. Just 40 years ago, celiac disease was considered rare disease with prevalence in Europe with only 0.03% of cases. Nowadays, disease isn’t only located in Europe. More than 1% of world population is considered to suffer from it. A recent Epidemiological study which was carried out in 15 Mediterranean countries shows that in 10 years there will probably be more than 5 million new cases of celiac disease. The only treatment for celiac disease is lifelong adherence to a strict gluten-free diet. Most of the symptoms of Celiac Disease appear at childhood. Methods: To find out about Celiac disease cases in Croatia, the online research was carried out from 19.05 until 20.06. 2023. Online questionnaire was posted on social media site of ‘Northwest Croatian Celiac Disease Association’. Seventy of the association members, who are also diagnosed with Celiac Disease were able to participate in questionnaire. Results: Research gave us answers which confirmed that symptoms appear even at youngest age, time that is needed to diagnose the disease, where results were very good. On the other hand, what patients suffering with Celiac Disease consider worth of improvement is education and general knowledge of Croatian people about their condition. Conclusion: It is important to know how critical it is to hold a strict gluten free diet. To educate parents and children suffering from disease on how to adopt gluten free diet in their lifestyle. But it is crucial to educate all people so anyone who will recognise symptoms has better chance of early diagnosis and less chance of developing more serious illness.