Jeera (cumin) oil's health benefits include its ability to aid in digestion, Gastric trouble, improve immunity help in piles, manage obesity, insomnia, respiratory disorders, asthma, bronchitis, common cold, lactation, anemia, skin disorders, boils, and cancer. Jeera oil lowers Blood Sugar levels. Cumin Oil has a high pH level which neutralizes acidity quickly. This Low acidity improves your digestion and lowers cholesterol levels in the veins.