What is H. pylori?What are the main signs and symptoms of H. pylori infection?How is H. pylori infection diagnosed?What are some of the main medical treatments for H. pylori infection?Have any supplements been studied for H. pylori infection?How could diet affect *H. pylori* infection?Are there any other treatments for *H. pylori* infection?What causes *H. pylori* infection?How does *H. pylori* infection affect the gastric microbiome?What role might *H. pylori* infection play in other diseases?