system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: If medical evidence suggest that the Helicobacter Pylori Bacterium is responsible for peptic ulcers, why do many doctors still advice patients to avoid spicy foods and citrus juices?
gpt
Spicy and acidic foods can irritate the lining of your stomach, both making you more susceptible to infection and worsening infections that you already have. Avoiding these foods also reduces the discomfort that comes from ulcers, which helps the patient.