“…In designing the questionnaire, foods containing probiotics and prebiotics were used. These included pasta, rice, traditional bread (35), curd, green tea (36), pickles (37), cabbage, spinach, onion, garlic (38), beans (39), Banana, apple, peach, plum (40), traditional yogurt, milk, cheese (11), dark chocolate (41) and honey (42). Regarding aims of the study, samples were selected using convenience sampling method from men and women aged 20-40 years, who were residents of Tehran with at least a diploma.…”