Summer is filled with backyard barbecues, frozen treats, and refreshing drinks, but some seasonal favorites may be doing more harm than good to your digestive system. Gastroenterologists and nutrition experts increasingly warn that certain highly processed foods can disrupt the gut barrier, sometimes referred to as the gut lining, which plays a critical role in digestion, immunity, and overall health. When this protective barrier becomes compromised, unwanted substances may pass into the bloodstream, potentially triggering inflammation and digestive discomfort. While enjoying summer foods in moderation is perfectly reasonable, understanding which choices can negatively affect gut health may help you avoid common digestive issues.