Aim of the research: To examine the connection of lifestyle and eating habits with the occurrence of gastritis symptoms; to examine the differences in the frequency of symptoms according to eating habits, difficulties related to the gastrointestinal system, diagnosed gastritis, alcohol and cigarette consumption, and the connection between the aforementioned variables and symptoms associated with gastritis. Study design: Cross-sectional study. Respondents and methods: A total of 183 respondents participated. The research was conducted in May 2023 by distributing a questionnaire via social networks. The respondents were familiarized with the purpose and aims of the research before accessing the questionnaire. It took between 7 and 10 minutes to complete the questionnaire. Results: The frequency of gastritis symptoms is increased in respondents who eat irregularly and in respondents who eat inappropriate portion sizes, fast food, fried and salty food, sweets, and drink carbonated drinks. The frequency of symptoms is higher in respondents who have problems related to the gastrointestinal system, have been diagnosed with gastritis, eat too quickly and eat if they don’t feel hungry, drink black coffee and carbonated drinks, eat spicy and hot food, and consume cigarettes and alcohol. Also, symptoms related to gastritis are more frequent in respondents who engage in less physical activity, and loss of appetite is more common in respondents who eat too quickly. Conclusion: The frequency of symptoms is related to bad eating habits and a reduced level of physical activity. It is important to educate the general population with the aim of increasing awareness of the importance of a healthy diet.