Rosemary is said to have many health benefits, including: Rosemary is rich in antioxidants, which help neutralize free radicals and prevent oxidative stress. Oxidative stress can contribute to chronic inflammation and damage cells. Rosemary is particularly effective against stomach bacteria, such as H. pylori, which can cause ulcers. Rosemary can eliminate harmful bacteria while leaving helpful bacteria intact. The tinctures and supplements are used to treat digestive problem