It is widely used in cooking and it has been used as a medicine in ancient times because of its anti-microbial properties. Consuming garlic on a daily basis (in food or raw) helps to lower cholesterol levels because of the anti-oxidant properties of Allicin. protect against cell damage and aging. It may reduce the risk of Alzheimer's disease and dementia. It is also immensely beneficial to regulate blood pressure and blood sugar levels. Garlic is low in calories and rich in vitamin C, vitamin B6 and manganese. It also contains trace amounts of various other nutrients. It reduce the severity of common illnesses like the flu and common cold. Reduces total and LDL cholesterol, particularly in those who have high cholesterol. HDL cholesterol and triglycerides do not seem to be affected.