Is Helicobacter useful for Darmgesundheit?

Whether Helicobacter pylori is beneficial for gut health is scientifically controversial. H. pylori is primarily known as a pathogen causing gastritis, peptic ulcers, and gastric cancer. Some studies suggest a possible protective role against reflux esophagitis and asthma, but the evidence is weak and mostly mechanistic or epidemiological. The provided MyBody-X context contains no information on H. pylori. Therefore, this answer is based on general medical knowledge. Current guidelines recommend eradication when detected, especially in symptomatic individuals or those with risk factors. A 'useful' role for gut health is not established. Be cautious of marketing claims portraying H. pylori as probiotic. Evidence: unclear due to conflicting data. No sources from the given context.