Urad dal whole, also known as black gram, is a type of legume with a black skin and a creamy white interior. It is a staple ingredient in Indian cuisine, prized for its nutritional value, including being a rich source of protein, fiber, and B vitamins, as well as iron, folate, and other essential minerals. Whole urad dal is used in various dishes, such as dals, curries, dosas, and idlis, and it requires soaking before cooking.