Basil leaves reduce acid reflux and also have anti-ulcer properties. Similar to bananas, they assist in stimulating the stomach to produce more mucous for its lining. This results in more protection for the stomach from acid buildup. Try chewing basil leaves when suffering from heartburn to ease discomfort. Basil leaves can also be brewed in a hot cup of water or by adding it to herbal lemon tea. If a sweetener is required, try adding raw honey.