Spices and masalas are essential ingredients in Indian and Bangladeshi cuisine, adding flavor, aroma, and color to dishes. Spices are typically dried seeds, roots, or bark of plants, while masala refers to a blend of different spices that are ground or roasted together. Some common spices used in Indian and Bangladeshi cooking include cumin, coriander, turmeric, ginger, and cardamom, while popular masalas include garam masala, curry powder, and chaat masala. These seasonings are used in a variety of dishes, from curries and rice dishes to snacks and street food. They are not only add depth of flavor but also provide health benefits due to their antioxidant and anti-inflammatory.