Black cumin powder (Kaala jeera), one of the common ingredients in Indian cuisine is also an active ayurvedic herb. Kalonji seeds are very helpful in maintaining the blood sugar levels and in maintaining the balance between good and bad cholesterol levels. It promotes digestion and prevents gas and flatulence. It also helps in weight management and helps to increase the metabolism of the body. When consumed with milk it increases the testosterone levels in men and improves the sperm count. It possesses antimicrobial and antioxidant properties and is beneficial for skin and hair.