This study sought to investigate the characteristics related to the consumption of green tea and beverages by adult males according to their body mass index. The characteristics examined included preference, taste, image, and perception of health efficacy according to the type of beverage consumed. Further, the variations in the characteristics related to beverage consumption according to the body mass index of the subjects were compared. The characteristics were assessed using a self-administered questionnaire rated on a five-point Likert scale. Adult males who usually consume green tea frequently had the highest preference scores for green tea. They also had a high recognition score for the premise that green tea helps to maintain health and assists in weight management. Participants who did not consume green tea had significantly lower preference, taste, and health efficacy scores than those who consumed green tea frequently (3∼4 times/week). The taste scores of green tea segregated according to the degree of obesity were significantly higher in the normal weight group than in the obese group. The health efficacy score of green tea and beverages was positively correlated with age and green tea intake. In conclusion, the normal weight group had a greater preference for the taste of green tea than the obese group. In addition, the higher the score on the preference and taste of green tea and the higher the perception that green tea helped improve health, the higher the consumption of green tea.