Every food supplement has a dot sign that differentiate it from medicines. This dot may be green in color or may be brown. Both color have its own meaning. Brown color indicates non vegetarian content present in whole product or in single ingredient. Green color indicates all ingredients used are obtained from vegetarian source.
When you purchase a food and dietary supplement from retailer or chemist. Have you noticed some sort of sign that indicate it comes under food and dietary supplements or medicine. Every thing you purchase from chemist or prescribe by doctor is not medicine. It may be food supplement.