Objective: To evaluate dietitians' knowledge of food and dental health in Ghaziabad. Materials and Methods: A cross-sectional survey was carried out among the Ghaziabad dietitians of the Indian Dietetic Association's life members. After 10 minutes, a 23-item, closed-ended survey was distributed and collected. Statistics were used to analyze the data. Results: Only 12.4% of respondents knew that drinking water with high fluoride content causes atypical tooth defects, while about 36.2% believed dietary supplements can prevent oral mucosal disorders. Dietitians' general understanding of food and oral health was 56.38%. Conclusion: The study demonstrates how little dentists know about oral health. It is important to clearly define the complex relationships between nutrition and dental health in practice, instruction, and research in both dietetics and dentistry.