Consuming garlic helps in boosting the immune system and is beneficial for fighting the common cold. See also How to get over a cold as soon as possible
A high level of garlic intake has been shown to reduce blood pressure to the extent of almost working just as good as medications.
Consuming garlic has been shown to decrease the levels of LDL, the 'bad cholesterol', which in turn lowers the risk of heart disease. See also What are the health benefits of avocado
Due to the antioxidants that garlic contains, high intake of garlic could fight ageing and cell deterioration. It could also help fight against Alzheimer's disease and dementia.
Since garlic helps in fighting many dangerous diseases, it can extend your life by a number of years. However, there is no scientific evidence that backs this claim.
Studies done on rodents showed that garlic helps in bettering athletic performance and exercise, in addition to reducing exercise-related fatigue.
A study has shown that garlic noticeably decreases levels of lead toxicity, which in turn may prevent organ damage. See also How to keep my kidneys healthy
Studies done on rodents showed that garlic can decrease bone loss by increasing estrogen levels in females. See also How to recover fast from a bone fracture
A study done on mice showed that including garlic in a diet decreases weight and reduces fat.
Studies have shown that consuming garlic on a regular basis reduces the risk of many types of cancer such as lung cancer, prostate cancer, brain cancer and colon cancer.
Garlic intake has shown to increase insulin levels and regulates the body's blood sugar levels.
Garlic contains a compound, diallyl disulfide, which enhances iron metabolism and fights iron deficiency related diseases such as anemia.