Lemongrass contains quercetin, a flavonoid known for having antioxidant and anti-inflammatory benefits. Quercetin reduces inflammation, which inhibits cancer cell growth and prevents heart disease. Lemongrass is used in Africa as a treatment for coronary heart disease. Water retention that is caused due to bloating may be relieved lemongrass. This herb is a diuretic, which means it causes the kidneys to release more urine, which obviously results in frequent urination. This helps in expelling the excessive sodium in our body hence leading to a sound system.