See what your doctor has to say and then use your best judgment. If you want to follow the better-safe-than-sorry route, you should keep your daily caffeine intake below the 200-milligram mark -- the equivalent of either four diet colas, three cups of green tea, or just one Grande Caffe Mocha at Starbucks per day.
1 Helicobacter pylori (H. pylori) is a bacterium that causes chronic inflammation in the stomach and is a common cause of ulcers worldwide. Helicobacter pylori (H. pylori) is a bacterium that causes chronic inflammation in the stomach and is a common cause of ulcers worldwide.
A common kind of bacteria called Helicobacter pylori, or H. pylori, can cause an infection in your stomach that sometimes leads to ulcers. It also can raise your risk of stomach cancer. H. pylori is a very common infection: At least half the people in the world get it at some point, usually in childhood.