Upset stomach, or gastritis, is a very common problem. Many causes of gastritis are related to lifestyle. Drinking too much alcohol or caffeine, smoking, and eating spicy foods can all cause gastritis.
Online Medical Reviewer: Bass, Pat F III, MD, MPH
Online Medical Reviewer: Berry, Judith A, PhD, APRN, FNP-C, ANP-C
Date Last Reviewed: 04/01/2020
© 2000-2026 The StayWell Company, LLC. All rights reserved. This information is not intended as a substitute for professional medical care. Always follow your healthcare professional's instructions.
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