4. Health Benefits of Drinking Rosemary Tea Rosemary tea has been used for hundreds of years to improve memory. Rosemary tea, made of the plant's leaf, contains rosmarinic acid and many other antioxidants that have been reported to prevent the breakdown of acetylcholine, a neurotransmitter that preserves brain tissues. Drinking rosemary tea benefits the digestive tract and can help those suffering from irritable bowel syndrome. It stimulates the release of bile to help digest fats, thus relieving intestinal cramps and spasms. It also helps in relieving indigestion, flatulence,and bloating. http://chinesemedicine.yo2.cn