Millets are small-grained cereal crops that are highly tolerant of drought and provide important nutrients. The document discusses several millet varieties, including pearl millet, foxtail millet, proso millet, and finger millet. It outlines their nutritional contents and common names. While processing methods like dehulling, milling, and flaking can increase digestibility and nutrient availability, millets also contain antinutritional factors such as oxalic acid, phytic acid, and polyphenols.