Onion seed oil has minerals that prevent hair loss and keeps the hair healthy; it helps in better digestion of food. Also, the oil kills intestinal parasites to cure diarrhoea. Relieve you of mild fever. You can also consume the oil to cure body aches. It is also useful in getting rid of serious skin problems like eczema and psoriasis. These are serious skin ailments; you can use the oil simply to lighten the complexion of your skin. It clears the face off acne and fungus, thereby making you look fresh and pretty. This oil clears the respiratory tract of infections, thereby acting as a cure for asthma. Intake of onion seed oil helps to keep the sugar levels in check. It is important in case you are a diabetic patient as the oil keeps the blood sugar under control.