A variety of Indian and Bangladeshi curries and vegetable dishes. The multiple families of Indian cuisine are characterized by their sophisticated and subtle use of many spices and herbs. Each family of this cuisine is characterized by a wide assortment of dishes and cooking techniques. Though a significant portion of food is vegetarian, many traditional Indian dishes also include chicken, goat, lamb, fish, and other meats. Food is an important part of culture, playing a role in everyday life as well as in festivals. Indian cuisine varies from region to region, reflecting the varied demographics of the ethnically diverse subcontinent. Despite this diversity, some unifying threads emerge. Varied uses of spices are an integral part of food preparation, and are used to enhance the flavor of a dish and create unique flavors and aromas. Cuisine across India and Bangladesh has also been influenced by various cultural groups that entered throughout history, such as the Persians, Mughals, and European colonists. Though the tandoor originated in Central Asia, Indian tandoori dishes, such as chicken tikka made with Indian ingredients, enjoy widespread popularity.