Statistical analyses
Completed surveys were extracted from Google Forms as an Excel sheet and were then exported to Statistical Package for Social Sciences version 24.0 (SPSS Inc., Chicago, IL, USA) for the statistical analysis. Descriptive statistics including percentages; means and frequency distribution were calculated for each question. Descriptive and univariate correlation analyses with the Pearson correlation coefficient (r) were used for the correlation at the 5% significance level. Ap -value of <0.05 represents a significant difference. Factors affecting knowledge score about food/beverage/herb-drug interactions, were screened using simple and multiple linear regression.