Backgrounds: Vitamin- C plays a major role to prevent the spread of various diseases. Hence Vitamin-C is associated with periodontal disease. 

Objectives: This study was conducted to evaluate the relationship between the dietary intake of Vitamin-C and periodontitis among the elderly population of Karachi, Pakistan.

Study Design: Cross-sectional study

Place and Duration of Study: The study was conducted among the elderly population of Sir Syed Hopistal, Karachi from June till November 2021.

Material and Method: A total of 384 elderly patients were taken by using convenience sampling technique belonging to age group (60-85) who were admitted in the Hospital at that time. The status of periodontits was assessed by using periodontal index. Twenty four-hour dietary intake of Vitamin-C was recorded along with other confounders such as age, gender, regarding the use of tooth brush, flossing, visits of dentist, alcohol consumption, smoking and other diseases. A multivariable logistic regression was applied.

Results: The participants who have taken dietary intake of vitamin C inadequately suffered from periodontitis by 1.16  times more than those participants who took adequate dietary intake of vitamin C (adjusted odds ratio [aOR] = 1.16, 95% confidence interval = 1.04±1.29).

Conclusion: The results of our study revealed that inadequate intake of dietary Vitamin-C was associated with the disease name periodontitis among the elderly population of Karachi. On the contrary adequate intake of dietary vitamin C has become essential to promote the periodontal health among the elderly patients.

Keywords: Ascorbic acid; Gingivitis; Periodontal disease; Periodontitis; Vitamin C