Celiac disease is a worldwide problem due to its high prevalence. The objective was to identify the knowledge of nurses, physicians and pharmacists from primary care to health about celiac disease. This is a quantitative and descriptive research. It was held in a municipality in the countryside of the state of Paraná in 19 health units, with 82 professionals, in 2016. Data collection was done through the application of a questionnaire with closed questions, based on the Clinical Protocol of Therapeutic Guidelines of Celiac Disease. Data analysis was conducted through statistical treatment. Ninety three percent of health professionals reported to have some knowledge about the disease, and 15.0% reported being aware of the protocol of care to the celiac patient. Eighty percent gave right answers for the typical symptomatology, and 40.0% for the atypical form. It was concluded that there is a need for training through in-service education, as a strategy to strengthen the management of this disease in primary care. (AU)